Bearing problem?

This type of bearing is a mechanical part that supports and limits the rotation or swing of the shaft. The shaft and bearing form a dynamic connection, so as to transfer the load and limit the movement of the shaft.

A, according to the size of the rolling bearing classification is divided into:

(1) miniature bearing-bearing with nominal outside diameter less than 26 mm;

(2) Small bearings-bearings with a nominal outer diameter of 28-55 mm;

(3) Small and medium-sized bearings-bearings with a nominal outer diameter of 60- 1 15mm;

(4) Medium and large bearings-bearings with nominal outside diameters ranging from 120 to190mm.

(5) Large bearings-bearings with a nominal outer diameter of 200-430mm;

(6) Oversized bearing-bearing with nominal outer diameter of 440-2000mm.

(7) Main bearings-bearings with a nominal outside diameter exceeding 2000mm. ..

Second, according to the direction of the load it can bear.

It can be divided into: ① radial bearing, also known as radial bearing, bears radial load. ② Thrust bearing, also known as thrust bearing, bears axial load. ③ Radial thrust bearing is also called centripetal thrust bearing, which bears both radial and axial loads. According to the different friction properties of bearings, they can be divided into sliding friction bearings (referred to as sliding bearings) and rolling friction bearings (referred to as rolling bearings).

Angular contact bearing: the nominal contact angle between the ball and the ring is greater than 0 and less than 90. It can bear both radial load and axial load. Can work at a higher speed. The larger the contact angle, the higher the axial bearing capacity. Generally, the contact angle of high-precision high-speed bearings is 15 degrees. Under the axial force, the contact angle will increase. Single row angular contact ball bearing can only bear axial load in one direction, and when it bears radial load, it will cause additional axial force. And can only limit the axial displacement of the shaft or the housing in one direction. If installed in pairs, make the outer rings of a pair of bearings face each other, that is, the wide end faces the wide end face and the narrow end faces the narrow end face. In this way, additional axial force can be avoided, and the shaft or housing can be limited within the axial clearance range in two directions.

Outer spherical bearing: A kind of centripetal rolling bearing, which has an outer spherical surface and a wide inner ring with locking parts. Mainly used for simple shells.

Linear motion bearing: a rolling bearing in which two raceways move linearly relative to each other in the rolling direction.

Ball bearing: The rolling element is a ball bearing.

Deep groove ball bearing: each ring has a continuous groove raceway, and its cross section is about one-third of the circumference of the ball. It is suitable for precision instruments, low-noise motors, automobiles, motorcycles and general machinery, and is the most widely used bearing in the mechanical industry. Simple structure and convenient use and maintenance. It is mainly used to bear radial load and certain axial load. When the radial clearance of the bearing increases, it has the performance of angular contact ball bearing and can bear larger axial load. This kind of bearing has small friction coefficient, high limit speed and various sizes and forms. Rugged, universal and low-noise operation, high-speed operation and easy installation. Single row deep groove ball bearing has another sealing design, which can avoid lubrication and maintenance. Single row ball bearings and double row ball bearings with ball loading notches are suitable for heavy load conditions.

Thrust ball bearing: The rolling element is a thrust ball bearing.

Roller bearing: The roller is a roller bearing.

Cylindrical roller bearing: roller is a centripetal rolling bearing of cylindrical roller, which is a separate bearing, and it is very convenient to install and disassemble. Cylindrical roller bearings are divided into single row, double row and four rows.

Cylindrical roller bearings can be divided into single row, double row and multi-row cylindrical roller bearings according to the number of rows of rolling elements used in bearings. Among them, single-row cylindrical roller bearings with cages are widely used. In addition, there are cylindrical roller bearings with other structures such as single row or double row full rollers.

Single-row cylindrical roller bearings can be divided into N type, NU type, NJ type, NF type, NUP type and so on. Cylindrical roller bearings can bear large radial load capacity, and can also bear certain unidirectional or bidirectional axial load according to the structure of annular flange.

NN-type and NNU-type double-row cylindrical roller bearings are compact in structure, strong in rigidity, large in bearing capacity and small in deformation after loading, and are mostly used to support the spindle of machine tools.

FC, FCD and FCDP four-row cylindrical roller bearings can bear large radial load and are mostly used in heavy machinery such as rolling mills.

Cylindrical roller bearings are mainly used in motors, machine tools, petroleum, rolling mill loading and unloading machinery and various industrial machinery.

Tapered roller bearing: The roller is a radial rolling bearing with tapered roller.

Needle roller bearing: The roller is a radial rolling bearing with needle roller.

Self-aligning roller bearing: Roller is a kind of self-aligning and centripetal rolling bearing with convex or concave spherical rollers. Bearing with convex spherical roller, with spherical raceway on the outer ring; Bearings with concave rollers have a spherical raceway in their inner rings.

Thrust roller bearing: The roller is a thrust roller bearing with rollers.

Thrust cylindrical roller bearing: the roller is the thrust rolling bearing of cylindrical roller.

Thrust tapered roller bearing: The rolling body is a thrust rolling bearing with tapered rollers.

Thrust needle roller bearing: The roller is a thrust rolling bearing with needle roller.

Thrust self-aligning roller bearing: Self-aligning thrust roller bearing with convex or concave spherical rollers. The raceway of bearing race of convex spherical roller is spherical, and the raceway of bearing race of concave spherical roller is spherical.

Bearing with seat: an assembly that combines a radial bearing with a seat. There is a bottom plate for mounting screws on the supporting surface parallel to the bearing shaft.

Joint bearing: the sliding contact surface is spherical, which is mainly suitable for rocking motion, tilting motion and rotating motion.

Combined bearing: A set of bearings is a rolling bearing composed of two or more bearing structures at the same time. Such as needle roller and thrust cylindrical roller combined bearing, needle roller and thrust ball bearing combined bearing, needle roller and angular contact ball bearing combined bearing, etc.

Other bearings: rolling bearings with other structures besides the above.

Sliding bearing: Sliding bearing has no inner and outer rings and no rolling elements, and is generally made of wear-resistant materials. It is often used for mechanical rotating parts with low speed, heavy load, difficult lubricating oil filling and maintenance.

Rolling mill bearings: Generally, rolling mill bearings are only used to bear radial loads. Compared with deep groove ball bearings of the same size, it has greater radial bearing capacity and its limit speed is close to that of deep groove ball bearings. However, the machining requirements of shafts and bearing seat holes matched with these bearings are high, and the inclination of inner ring axis and outer ring axis is allowed to be very small (2-4). If the inclination of the two shafts exceeds the limit, the contact between the roller and the raceway will become worse, which will seriously affect the bearing capacity and reduce the bearing capacity. Therefore, if it is necessary to install this kind of bearing on the main engine part bearing axial load, it can only be used on the premise that other types of bearings are used to bear axial load at the same time.

Generally speaking, bearings are mostly ball bearings and roller bearings. Rolling bearing is a precision mechanical element that changes the sliding friction between running shaft and shaft seat into rolling friction, thus reducing friction loss. Rolling bearings are generally composed of outer ring, inner ring, rolling body and cage. Rolling bearings are easy to use and maintain, reliable in operation, good in starting performance and high in medium-speed bearing capacity. Compared with sliding bearing, rolling bearing has larger radial dimension, poor vibration reduction ability, short service life and high noise at high speed.

Radial bearing (mainly bearing radial force) in rolling bearing is usually composed of inner ring, outer ring, roller and roller cage. The inner ring is tightly sleeved on the journal and rotates with the shaft, and the outer ring is installed in the bearing seat hole. Raceway is formed on the outer circumference of the inner ring and the inner circumference of the outer ring. When the inner and outer rings rotate relatively, the rollers roll on the raceway of the inner and outer rings, and they are separated by the cage to avoid mutual friction.

Thrust bearing is divided into two parts: tight ring and moving ring. The tightening hoop is fastened with the shaft sleeve, and the moving ring is supported on the bearing seat. Rings and rolling elements are usually made of rolling bearing steel with high strength and good wear resistance, and the surface hardness after quenching should reach HRC 60 ~ 65. Cages are mostly made of low carbon steel by stamping, and can also be made of copper alloy laminated bakelite or plastic.

Use and storage of bearings Edit the precautions for bearing use in this paragraph.

Compared with general mechanical parts, rolling bearings have higher accuracy, so they should be used with caution.

1) Keep the bearing and its surroundings clean.

2) When used with caution.

If the bearing is hit seriously due to carelessness in use, it will cause scars, indentations, fractures and other injuries to the bearing.

3) Use the right tools

4) Pay attention to the rust prevention of bearings.

Avoid using in damp places, and wear gloves to avoid sweating.

5) Users should be familiar with bearings.

6) Develop operating procedures for bearing use.

I. Fertility monitoring

B, bearing and its surrounding cleaning

C, the size of the installation parts and processing quality inspection

D, installation work

E. post-installation inspection

F. Disassembly operation

G, maintenance (regular inspection)

H, lubricant supplement

Bearing storage

Bearings are coated with proper amount of antirust oil and packed with antirust paper when they leave the factory. As long as the packaging is not damaged, the quality of the bearing is guaranteed.

But when stored for a long time, it should be stored on a shelf 30cm above the ground, with the temperature below 65% and around 20 degrees Celsius. In addition, storage places should avoid direct sunlight or contact with cold walls.

Bearing installation

Precautions before installation

1) bearing preparation

As the bearing is rustproof, don't unpack it before installing it in Lin 'an.

In addition, the antirust oil coated on the bearing has good lubrication performance, and can be directly used for general bearings or bearings filled with grease without cleaning. However, for bearings used for instrument or high-speed rotation, the antirust oil should be washed off with clean cleaning oil. At this time, the bearing is easy to rust and cannot be placed for a long time.

2) Inspection of shaft and shell

Clean the bearing and housing to ensure that there are no scars or burrs left by machining. No abrasive (SiC, Al2O3, etc.). ) molding sand, chips, etc. In the shell.

Secondly, check whether the size, shape and machining quality of the shaft and shell conform to the drawings.

Before installing the bearing, apply mechanical oil to the mating surface of the shaft and housing that has passed the inspection.

Installation method of bearing

Due to the different bearing types and matching conditions, the installation methods of bearings are also different.

Generally, the shaft rotates, so the inner ring and the outer ring can adopt interference fit and clearance fit respectively. When the outer ring rotates, the outer ring adopts interference fit.

(1) Press-in installation

Press-in installation generally uses a press, bolts and nuts, and a hammer if necessary.

(2) Hot sleeve installation

Heat the bearing in oil to make it expand, and then install it on the shaft, which can avoid unnecessary external force on the bearing and complete the installation work in a short time.

Precautions for heating:

1) Generally, the heating should not exceed 100 degrees Celsius.

2) The bearing is not allowed to touch the bottom of the oil tank.

In addition, the bearing can be heated and expanded by an induction heating device, and then installed on the shaft.

Removal of bearing

It is necessary to remove the bearing when checking or replacing parts regularly. Usually, almost all shafts and bearing boxes will continue to be used, and bearings will continue to be used frequently. Therefore, the structural design should take into account that the bearing, shaft, bearing box and other parts will not be damaged when disassembling the bearing, and at the same time, appropriate disassembly tools should be prepared. When disassembling the static fit ferrule, only pulling force can be applied to the ferrule, and the ferrule cannot be pulled by the roller.

Maintenance of bearings

In order to give full play to the role of bearings and maintain their proper performance for a long time, it is necessary to do regular maintenance (regular inspection).

Through proper regular inspection, it is very important to find faults early and prevent them before they happen, which is very important to improve productivity and economy.

1, clean

When removing the bearing for inspection, make a good appearance record by taking photos and other methods. In addition, before cleaning the bearing, it is necessary to confirm the amount of remaining lubricant and sample the lubricant.

1. Bearing cleaning can be divided into rough cleaning and fine cleaning, and a metal mesh can be placed at the bottom of the used container.

B, rough washing: remove grease or adhesive from the oil with a brush. At this time, if you rotate the bearing in oil, be careful that the rolling surface will be damaged by foreign objects.

C, fine washing, slowly turn the bearing in oil, be careful.

The cleaning agent usually used is neutral non-aqueous diesel oil or kerosene, and sometimes warm lye is used as needed. No matter what kind of detergent you use, you should always filter it to keep it clean.

Immediately after cleaning, apply antirust oil or grease to the bearing.

2, inspection and judgment

In order to judge whether the removed bearing can be reused, it is very important to check its dimensional accuracy, rotation accuracy, internal clearance, mating surface, raceway surface, cage and sealing ring.

The test results can be judged by people who are used to bearings or proficient in bearings.

The judgment standard varies with mechanical properties, importance and inspection period. If the following damages occur, the bearing shall not be reused and must be replaced.

1) Fracture and defect of bearing parts.

2) Stripping of rolling surface on raceway surface.

Bearing fault identification method

It is very important to identify or predict the failure of bearings in operation without disassembly inspection, which is very important to improve productivity and economy.

The main identification methods are as follows:

1) by voice recognition.

It takes a lot of experience to pass voice recognition. Only after sufficient training can we distinguish the bearing sound from the non-bearing sound. To this end, the work should be carried out by special personnel as far as possible. The sound of the bearing can be clearly heard by sticking a listening device or a listening stick on the housing.

2) Identification by working temperature.

This method is a comparative identification method, which is only used when the running state changes little. Therefore, it is necessary to record the temperature continuously. When a fault occurs, not only the temperature rises, but also irregular changes will occur.

3) Identify according to the state of lubricant.

Sample and analyze the lubricant to determine whether it is contaminated by foreign matter or metal powder. This method is especially effective for bearings or large bearings that cannot be observed at close range. Bearing packaging editor In this paragraph, bearing packaging is divided into inner packaging and outer packaging.

After the bearing is manufactured and passed the inspection, it is cleaned and rustproof, and then packed in inner packaging, so as to achieve the purposes of waterproof, moisture-proof, dustproof and impact-proof, maintain the quality and accuracy of the bearing, and facilitate the use and sale.

Bearing inner packaging is divided into three categories according to rust prevention period:

① packaging with short rust-proof period: the rust-proof period is 3 ~ 6 months, which is suitable for bearings that are shipped to the same subscriber in large quantities and put into use in a short time. Through consultation between both parties, simple packaging is adopted based on the principle of convenient use.

② General anti-rust packaging: the anti-rust period is one year, which is suitable for general bearings.

③ Long rust-proof packaging: the rust-proof period is two years, which is suitable for special and precision bearings.

The packaging materials in the bearing include polyethylene plastic pipe (box), kraft paper, plain and wrinkled polyethylene composite paper, carton, polyethylene or polyethylene plastic film, nylon fastening tape or plastic woven fastening tape, waterproof high-strength plastic tape, hemp bag, etc. All the above materials must pass the corrosion resistance test.

Principle requirements of bearing inner packaging method:

① Micro bearings: every 10 ~ 15 sets of bearings are packed in a plastic tube, and every 5 ~ 10 plastic tubes are packed in a paper box (or bagged or wrapped).

② Small and medium-sized bearings:

Several groups of bearings are wrapped with polyethylene film, external kraft paper or polyethylene composite paper;

Put multiple groups of bearings into a plastic cylinder (box);

A single set of bearings is packed in a polyethylene film bag, then the bag is folded or sealed and put into a carton.

③ Large bearing:

Packed with polyethylene film or polyethylene composite paper in a single set, and then packed into cartons;

Use polyethylene film bag, fold the bag mouth into a single package, and then put it into the paper box;

Single sleeve into a special plastic box;

Single set of three-layer packaging: the inner layer is polyethylene film tape or composite paper tape, the middle layer is fastening tape and the outer layer is waterproof and breathable plastic tape.

④ Oversized bearing:

Single set of three-layer wrapping packaging (same as above);

One-by-four-layer package: after the above three-layer package, the outermost layer is wrapped with a layer of linen tape.

For separable tapered roller bearings with outer diameter ≥ 150mm, the inner and outer components should be lined with polyethylene film before packaging, or the inner and outer components should be packaged separately.

For interchangeable cylindrical roller bearings with outer diameter ≥ 150mm, the inner and outer parts can generally be packaged separately because the complete package is easy to be damaged.

General materials and requirements for bearing packaging are as follows:

① Double-layer corrugated boxes, the total weight (gross weight) of each box shall not exceed 25kg, and the boxes shall be bound with plastic belts;

② Nail board boxes (wooden boxes), with the total weight of each box not exceeding 30kg, and the boxes are bound with blue steel belts;

③ Calcium-plastic corrugated boxes, each with a total weight of less than 25kg, are bound with plastic belts.

When loading the bearing products with inner packaging into the box, the box should be lined with plastic bags or plastic films first; If there is a gap in the box, it should be filled with dry substances such as corrugated paper blocks and scraps of paper.

Bearing parts

(1) Overview of Bearing Parts

1. Bearing parts

One of the parts that make up a rolling bearing, but not all the accessories.

2. Bearing ring

The annular part of a radial rolling bearing with one or more raceways.

3. Bearing washer

Annular parts of thrust rolling bearings with one or several raceways.

4. Flat retaining ring

A detachable substantially flat washer, the inside or outside of which acts as a stopper for the outer ring or inner ring of a radial cylindrical roller bearing.

5. Inclined retaining ring (detachable)

The separable ring with L-shaped cross section is used as the retaining edge of the inner ring of radial cylindrical roller bearing.

6. Middle retaining ring

Detachable rings in roller bearings with two or more rows of rollers are used to isolate the two rows of rollers and guide the rollers.

7. Stop ring

A single-port ring with a constant cross section is installed in the annular groove to axially position the rolling bearing on the housing or shaft.

8. Sealing ring

A single-port ring with equal section is installed in the annular groove as a retaining ring to keep the roller or cage in the bearing.

9. Reverse current device

It is an annular part, which is used between two bearing rings or bearing washers or between two bearing rings or bearing washers to keep the specified axial distance between them.

10. Washer

The annular cover composed of one or several parts is fixed on one ring or washer of the bearing, and contacts with another ring or washer or forms a narrow labyrinth gap to prevent the leakage of lubricating oil and the invasion of foreign objects.

1 1. Dust cover

It is an annular cover, usually stamped from a thin metal plate, which is fixed on one ring or washer of the bearing and extends to the other ring or washer to cover the inner space of the bearing, but does not contact with the other ring or washer.

12. Holder

The parts attached to the inner ring or shaft ring enhance the ability of rolling bearing to prevent foreign objects from invading by centrifugal force.

13. Rolling body

A ball or roller that rolls between raceways.

14. Bird cage

A bearing part that partially encloses all or part of the rolling elements and moves with them to isolate the rolling elements, and usually also guides and holds the rolling elements in the bearing.

(2) Structural characteristics of bearing parts

1. Ditch

The surface of the bearing part of the rolling bearing is used as the rolling track of the rolling body.

2. Straight raceway

The generatrix on the plane perpendicular to the rolling direction is a straight raceway.

3. Crown raceway

The raceway is basically cylindrical or conical and has a continuous slight convex curve on the plane perpendicular to the rolling direction to prevent stress concentration at the contact between the roller and the raceway.

4. Spherical raceway

The raceway is a part of the surface of the ball.

5. Channel

The raceway of ball bearing is groove-shaped, usually with a circular cross section, and its radius is slightly larger than the ball radius.

6. (ditch) shoulder

One side of a ditch (runway).

Occlusion edge

A narrow shoulder protruding from the raceway surface and parallel to the rolling direction. Used to support and guide rolling elements and keep them in bearings.

8. Guide the surface of the cage

The cylindrical surfaces of bearing rings and washers are used to guide the cage radially.

9. End face of ferrule (washer)

The surface of the ferrule (washer) is perpendicular to the axis of the ferrule (washer).

10. Bearing hole

Inner hole of inner ring or shaft ring of rolling bearing

1 1. cylindrical hole

The generatrix of the inner hole of a bearing or bearing part is basically a straight line and parallel to the axis of the bearing or bearing part.

12. Conical hole

The generatrix of the inner hole of a bearing or bearing part is basically a straight line and intersects with the axis of the bearing or bearing part.

13. Bearing outer surface

The outer surface of the outer ring or raceway of a rolling bearing.

14. Chamfering of ferrule (washer)

The inner hole or outer surface of the bearing is connected with one end face of the ferrule (washer).

15. Overpass trough

A groove or groove at the root of the retaining edge or flange of a bearing ring or bearing washer to facilitate grinding.

16. Seal (contact) surface

The surface in sliding contact with the sealing ring.

17. Groove of sealing ring (dust cover)

Groove for fixing bearing sealing ring (dust cover).

18. Retaining ring groove

A groove for fixing the stop ring.

19. Lubricating groove

A groove in a bearing part for conveying lubricant.

20. Lubrication hole

Holes in bearing parts are used to deliver lubricant to rolling elements.

(3) Bearing ring

1. inner ring

Bearing ring with raceway on the outer surface.

2. Outer ring

Bearing ring with raceway on the inner surface.

3. Conical inner ring

Tapered roller bearing inner ring.

4. Tapered outer ring

Tapered roller bearing outer ring.

5. Double raceway cone inner ring

Inner ring of double-row raceway tapered roller bearing.

6. Double raceway cone outer ring

Tapered roller bearing outer ring with double raceways.

7. Wide inner ring

A bearing inner ring with one or both ends widened to improve the guidance of the shaft in its inner hole or to provide a supplementary position for installing fasteners or seals.

8. Lock the inner ring

A grooved ball bearing inner ring with the shoulder completely or partially removed.

9. Lock the outer ring

The invention relates to a grooved ball bearing outer ring, the shoulder of which is completely or partially removed.

10. Stamping the outer ring

A ferrule stamped by a thin metal plate with one end sealed (sealing and stamping the outer ring) or two ends open usually points to the outer ring of a needle roller bearing.

1 1. Flange outer ring

Bearing outer ring with flange.

12. Self-aligning outer ring

The outer ring with spherical outer surface adapts to the permanent angular displacement between its axis and the bearing seat axis.

13. Self-aligning outer ring

The ferrule for alignment between the outer ring and the seat hole has a spherical inner surface that matches the spherical outer surface of the outer ring.

14. External sphere

The outer surface of the bearing outer ring is a part of the ball surface.

15. Front fender with tapered outer ring

Use the retaining edge at the front of the raceway of the cone outer ring.

So as to guide the roller and bear the thrust of the large end face of the roller.

16. Intermediate retaining ring

Bearing rings with double raceway, such as the middle integral flange of double raceway cone inner ring.

(4) Bearing washer

1. collar

Bearing washer installed on the shaft.

2. Seat ring

Bearing washer installed on the valve seat.

3. Middle circle

Bearing washers with raceways on both sides are used between two rows of rolling elements of double-row bidirectional thrust rolling bearing.

4. Automatically calibrate the seat ring

There is a spherical backseat ring to accommodate the permanent angular displacement between its axis and the seat axis.

5. Automatically adjust the seat washer

The washer used between the self-aligning seat ring and the thrust bearing surface of the shell has a concave spherical surface matching with the spherical back surface of the self-aligning seat ring.

(5) Rolling bodies

1. ball

Spherical roller

2. Drum

A rolling body has an axis of symmetry, and its cross section on any plane perpendicular to its axis is circular.

3. The ball (roller) as a whole

All balls (rollers) in a specific rolling bearing.

4. Ball (roller) group

A volleyball (roller) in a rolling bearing.

5. Cylindrical roller

The generatrix of the outer surface of the roller is basically a straight line and parallel to the axis of the roller.

6. Needle roller

For small diameter cylindrical rollers with large aspect ratio, the length is generally between 3 ~ 10 times of the diameter, but the diameter is usually less than 5 mm The needle head can have several shapes.

7. Tapered roller

The generatrix on the outer surface of the roller is basically a straight line and intersects with the axis of the roller, which is generally frustum-shaped.

8. (convex) spherical convex roller

The outer surface of the roller is an arc that protrudes inward in a plane containing its axis.

9. Concave hand roller

The outer surface of the roller is a concave arc in a plane containing its axis.

10. Symmetric spherical roller

The outer surface of the convex spherical roller is symmetrical on both sides of a plane passing through the middle of the roller and perpendicular to its axis.

1 1. Asymmetric spherical roller

The outer surface of the convex spherical roller is asymmetrical on both sides of the plane passing through the middle of the roller and perpendicular to its axis.

12. Crown roller

The outer surface of the roller, which is basically cylindrical or conical, presents a continuous slight convex curve in the plane containing the axis of the roller to prevent the stress from concentrating on the end of the roller in contact with the raceway.

13. Dressing roller

At the end of the outer surface of the roller, its diameter is slightly changed to prevent stress concentration at the end of the roller in contact with the raceway.

14. Spiral roller

Spiral drum made of steel belt.

15. Roller end face

The end face that is substantially perpendicular to the axis of the roller.

16. Large end face of roller

The end face of the big head of tapered roller or asymmetric spherical roller.

17. Small end face of roller

Small end face of tapered roller or asymmetric spherical roller.

18. Roller chamfering

The surface where the outer surface of the roller is connected with the end surface.

(6) Cage

1. Wave cage

Comprises a rolling bearing cage consisting of one or two wavy annular parts.

2. Cage bag (window) hole

Holes or openings in the cage to accommodate one or more rolling elements.

3. Cage beam

A part of a cage for separating adjacent cage pockets.

4. Cage claw

A cantilever extending from a cage or semi-cage.

5. Cage strut

Generally cylindrical columns can be used through the shaft holes of rollers.

6. Fixator with edge guide rail

A cage that is radially guided (centered) by the shoulder surface on the bearing ring or bearing washer.