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Common terms and definitions for rolling bearings (1)
Source: Bearing network time: 2017-10-21
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(1) General theory of rolling bearings
1. Rolling bearing
a bearing that tumbling between a load-bearing and mutually moving part; it contains race parts and a roll set with or without a barrier or guide. Can be used to accept radial, axial or radial and axial Combined load.
2. Single row bearing
Rolling bearing with a row of rolling elements.
3. Double row bearing
Rolling bearing with two rows of tumblers.
4. Multi-row bearing
Roller bearing with more than two rows; rolling bearings bearing the same direction of load; the best is to indicate the number of columns and bearing type; for example: "four-row radial cylindrical roller bearing".
5. Full complement rolling bearing
The bearing without the support frame; the total gap between the circumferential direction of each row of rolling elements is smaller than the diameter of the rolling body and as much as possible.
6. Angular touch bearing angular contact bearing
Rolling bearings with a nominal touch angle greater than 0° and less than 90°.
7. Self-aligning bearing
A raceway is spherical; a bearing that can get used to the angular error and angular motion between the two raceways.
8. Separable bearing
Rolling bearings with separate parts.
9. Not to leave the bearing non-separable bearing
After the end of the device; the bearing ring can not be arbitrarily separated from the rolling bearing.
Note: For bearings that do not leave the part differently; for example, ball bearings with double half rings (02, 01, 08) are not subject to regular abbreviations.
10. Inch bearing inch bearing
The original design dimensions and the rolling bearings indicated in English units.
11. Open bearing
Rolling bearing without dust cover and sealing ring.
12. Sealed bearing
Rolling bearing with sealing ring on one or both sides.
13. Dust cover bearing shielded bearing
Rolling bearing with dust cover on one or both sides.
14. Closed bearing
With one or two sealing rings; one or two dust caps and a sealing ring and a dust cover rolling bearing.
15. Pre-smooth bearing
The production plant is now filled with smoothing roller bearings.
16. Instrument fine bearing instrument
Instrument-specific rolling bearings.
17. Combination bearing
Paired into a pair or a set of rolling bearings.
(two) radial bearing
1. Radial bearing
It is primarily used for rolling bearings that accept radial loads; its nominal touch angle is between 0° and 45°; the base parts are the inner ring, the outer ring and the roll with or without the holder.
2. Radial contact bearing
A centripetal rolling bearing with a nominal touch angle of 0°.
3. Angular contact radial bearing
A centripetal rolling bearing with a nominal touch angle greater than 0° to 45°.
4. Spherical bearing
Radial rolling bearing with outer spherical surface and wide inner ring with locking parts. It is mainly used for simple outer casing.
5. Tapered bore bearing
A centripetal rolling bearing with a tapered bore in the inner ring.
6. Flanged bearing
On one of its ferrules; generally a radial roller bearing with an outer radial flange on the outer ring or conical outer ring.
7. Roller bearing (rolling bearing)
a radial rolling bearing with a thick section outer ring; as a wheel tumbling on a rail; for example a cam track.
8. Retaining ring type roller (rolling) bearing yoke type track roller (rolling bearing)
Roller bearing with a pair of flat retaining rings.
9. Universal matching bearing
When you choose one or more sets of the same type of centripetal rolling bearings, you can get the characteristics of the paired or grouped devices.
(three) thrust bearing
1. Thrust bearing
The first to be used for rolling bearings that accept axial loads; the nominal touch angle is greater than 45° to 90; the basic parts are the shaft ring, the race and the roll with or without the holder.
2. Axial contact bearing
A thrust bearing with a nominal touch angle of 90°.
3. Angular touch thrust bearing angular contact thrust bearing
Thrust tumbling bearings with a nominal touch angle greater than 45° but less than 90°.
4. Single direction thrust bearing
A thrust tumbling bearing that can only accept axial loads in one direction.
5. Double direction thrust bearing
A thrust tumbling bearing that accepts axial loads in both directions.
6. Double row double-direction thrust bearing
Two-way thrust tumbling bearings with two rows of tumbling bodies; each column receives axial loads in only one direction.
7. Linear (motion) bearing linear(motion)bearing
Two rolling bearings have a relatively linear rolling bearing in the rolling direction.
(four) ball bearings
1. Ball bearing
The roll body is the ball's roll bearing.
2. Radial ball bearing
1. The roll body is the radial roll bearing of the ball.
3. Deep groove ball bearing
Each ferrule has a centripetal ball bearing with a groove-shaped raceway having a cross-section of approximately one-third of the circumference of the ball.
4. Filling groove ball bearing filling slot ball bearing
Fill a groove on each rib of each groove of the grooved ball bearing; in order to be able to fill more balls.
5. Lock ball bearing counterbored ball bearing
A grooving ball bearing with a rib on the outer ring or some removed.
6. Three point touch ball bearing three point comtact ball bearing
Single-row angular touch ball bearings are subjected to pure radial load; each loaded ball has two touches with one channel; and one touch with the other. Under pure axial load; each ball and each A channel is just a touch.
7. Four point contact ball bearing
Single row angular touch ball bearings; when subjected to pure radial load; each loaded ball and two channels each have two touches; and when subjected to pure axial load; each touch is only a little touched.
8. Thrust ball bearing
1. The roll body is the thrust roller bearing of the ball.
9. Single row double direction thrust ball bearing single row double-directino thrust ball bearing
Four-point touch ball bearings with a touch angle greater than 45°.
10. Double row one-way thrust ball bearing doubel row single-direction thrust ball bearing
A one-way thrust ball bearing with a double volleyball concentric raceway and receiving the same direction load.
(5) Roller bearing
1. Roller bearing
The roll body is the roller bearing of the roller.
2. Radial roller bearing
1. The roll body is the radial roll bearing of the roller.
3. Cylindrical roller bearing cylindrical roller bearing
1. The roll body is a radial roller bearing of a cylindrical roller.
4. Tapered roller bearing tapered roller bearing
1. The roll body is a radial roller bearing of a tapered roller.
5. Needle roller bearing needle roller bearing
1. The roll body is the radial roller bearing of the needle roller.
6. Drawn cup needle roller bearing
Thin-plate stamping (stretching) outer ring radial needle roller bearing; one end closed or two ends open; often without inner ring.
7. (convex) spherical roller bearing convex roller bearing
1. The rolling body is a radial rolling bearing of a convex spherical roller.
8. Concave roller bearing
1. The roll body is a radial roller bearing of a concave roller.
9. Spherical roller bearing
The rolling body is a self-aligning radial rolling bearing with a convex spherical surface or a concave roller. The bearing has a spherical spherical roller; the outer ring has a spherical raceway, a bearing with a concave roller; and the inner ring has a spherical raceway.
10. Interspersed roller bearing
An angular touch roll bearing with a row of rollers; adjacent rollers are inserted into a cross device; so that half of the rollers (each second roller) receive an axial load in one direction; and the axial load in the opposite direction is Half roller accepted.
11. Thrust roller bearing
1. The roll body is a roller thrust bearing.
12. Cylindrical roller bearing
The roll body is a thrust roller bearing of a cylindrical roller.
13. Thrust tapered roller bearing tapered roller thrust bearing
3. The rolling body is a thrust roller bearing of tapered roller.
14. Axle needle roller bearing needle roller thrust besring
3. The roll body is a thrust roller bearing for needle roller.
15. Thrust spherical roller bearing
The rolling body is a self-aligning thrust rolling bearing with a convex spherical surface or a concave surface roller. The raceway of the bearing race with a convex spherical roller is spherical; the shaft raceway with the concave spherical roller bearing is spherical.
Second, the bearing parts:
(1) General description of bearing parts
1. Bearing part bearing part
One of the parts that make up the rolling bearing; but not all accessories.
2. Bearing ring bearing ring
a ring-shaped part of a centripetal rolling bearing with one or several raceways.
3. Bearing washer bearing washer
Ring-shaped part of a thrust tumbling bearing with one or several raceways.
4. Flat ring loose rib
A substantially flat washer that can be separated; some inside or outside it is used as a rib of the outer or inner ring of a cylindrical roller bearing.
5. Separate collar (separate)
A ring that has an "L" shape; it is used as a rib for the inner ring of a cylindrical roller bearing.
6. Middle ring guide ring
An detachable ring in a roller bearing with two or more rows of rollers; used to block two rows of rollers and guide the rollers.
7. Stop ring locating snap ring
a single port ring with a stable cross section; installed in the annular groove; axially positioning the tumble bearing in the casing or on the shaft.
8. Locking ring retaining snap ring
A single-mouth ring with a stable cross-section; installed in the annular groove as a retaining ring to hold the roller or the holder in the bearing.
9. Spacer spacer
Is a ring-shaped part; used between two bearing rings or bearing washers or between two half bearing rings or between two half bearing washers to maintain a regular axial spacing between them.
10. Seal seal
An annular cover consisting of one or several parts; fixed to a ferrule or washer of the bearing and touching or forming a narrow labyrinth gap with another ferrule or gasket; avoiding leakage of smooth oil and invasion of foreign objects.
11. Dust cover shield
Is a ring cover; generally stamped from a thin metal plate; fixed to a ferrule or washer of the bearing; and extended toward the other ring or washer; covers the inner space of the bearing; but does not touch the other ring or washer .
12. Retainer flinger
A part attached to the inner ring or shaft ring; the use of centrifugal force to enhance the ability of the rolling bearing to avoid foreign objects.
13. Rolling element
A ball or roller that rolls between raceways.
14. Stick to cage
Somely wrapped in all or some of the tumbler; and one of the same moving bearing parts; used to block the roll; and generally guide the roll and hold it in the bearing.
(two) bearing parts layout characteristics
1. Raceway
The rolling bearing accepts some appearance of the load; it is used as a rolling track for the rolling body.
2. Straight raceway
The busbar in the plane straight to the direction of the roll is a straight raceway.
3. Convex raceway
A fundamental cylindrical or conical raceway with successive micro-curved curves in a plane straight to the direction of rollover; to avoid stress gathering at the roller and raceway touch.
4. Spherical raceway
The raceway is a bit of a ball appearance.
5. Channel raceway groove
The ball bearing raceway is groove-shaped; generally a circular arc-shaped cross section; its radius is slightly larger than the radius of the ball.
6. Groove shoulder
The side of the ditch (rolling) road.
7. Rib rib
A narrow shoulder that protrudes parallel to the direction of the roll. It is used to support and guide the roll and hold it in the bearing.
8. Guide the appearance of the cage
The cylindrical outer surface of the bearing ring and washer; used to guide the bracket in the radial direction.
9. Ferrule (gasket) end face ring (washer) face
Straight to the outer ring of the ferrule (washer) of the ferrule (washer).
10. Bearing bore
Roll the inner ring of the bearing inner ring or shaft ring
11. Cylindrical bore
The inner bore of a bearing or bearing part; its busbar is essentially straight and parallel to the bearing axis or the bearing part axis.
12. Conical bore
The inner hole of a bearing or bearing part; its busbar is a straight line and intersects the bearing axis or the bearing part axis.
13. Bearing outside surface bearing outside surface
Rolling bearing outer ring or outer surface of the race.
14. Ferrule (washer) chamfering ring (washer) chamfer
The outer ring of the bearing or the outer surface of the outer ring and the outer end of the ferrule (gasket).
15. Overpass trough grinding undercut
In the ferrule or flange of the bearing ring or the flange of the bearing, the groove or groove is opened for easy grinding.
16. Seal (touch) appearance sealing (conract) surface
Sliding touch with the seal ring.
17. Seal (dust cover) slot seal(shield)groove
The groove used to adhere to the bearing seal (dust cover).
18. Stop ring groove
The slot used to hold the stop ring.
19. Smooth groove lubrication groove
a groove for conveying a smoothing agent on a bearing part.
20. Smooth hole lubrication hole
On the bearing part; the hole used to transport the smoothing agent to the roll.
(three) bearing ring
1. Inner ring inner ring
The bearing ring of the raceway on the outer and outer surfaces.
2. Outer ring outer ring
The raceway of the raceway on the inner and outer surfaces.
3. Conical inner circle cone
The inner ring of a tapered roller bearing.
4. Conical outer ring cup
The outer ring of a tapered roller bearing.
5. Double raceway inner ring double cone
Tapered roller bearing inner ring with double raceway.
6. Double raceway cone outer ring double cup
Tapered roller bearing outer ring with double raceway.
7. Wide inner ring
A bearing inner ring that is widened at one or both ends; in order to improve the guiding of the shaft in its inner bore or the device fastener or seal supply to compensate for the orientation.
8. Locked inner ring stepped inner ring
A grooved ball bearing inner ring with a shoulder or some removed.
9. Locked outer ring counterbored outer ring
A grooved ball bearing outer ring with a shoulder or some removed.
10. Drawn outer ring drawn cup
Stamped by a thin metal plate; one end sealing (sealing punched outer ring) or two open ferrules; generally pointing to the outer ring of the needle roller bearing.
11. Flange outer ring
Flanged bearing outer ring.
12. Self-aligning outer ring aligning outer ring
An outer ring with a spherical outer surface; a permanent angular displacement that occurs between the axis of the shaft and the axis of the bearing housing.
13. Self-aligning outer race aligning housing ring
It is used for the ferrule between the outer ring and the seat hole; it has a spherical inner and outer surface that matches the spherical outer surface of the outer ring.
14. Spherical outer surface
The outer outer surface of the bearing outer ring is a part of the outer surface of the ball.
15. Conical outer ring front rib cup front face rib
The rib on the front of the tapered outer ring raceway; used to guide the roller and receive the thrust of the large end face of the roller.
16. Middle rib centre rib
A bearing ring with a double race; for example, the middle rim of a double raceway inner ring.
(four) bearing washer
1. Shaft shaft washer
The bearing washer on the shaft.
2. Hobby hunting washer
The bearing washer in the seat.
3. Central circle
Bearing washers with raceways on both sides; between two rows of tumbling bodies for double row double direction thrust tumbling bearings.
4. Aligning housing
a seat with a spherical opposite; a eternal angular displacement between the axis of the axis and the axis of the seat axis.
5. Self-aligning seat washer
It is used for the gasket between the self-aligning seat and the outer casing of the thrust receiving body; its outer surface is a concave spherical surface and the spherical opposite surface of the self-aligning seat ring.
(5) Rolling body
1. Ball ball
Spherical roll
2. Roller roller
a roll with a symmetrical axis and a circular cross section in either plane of the straight axis.
3. Ball (roller) whole ball (roller)complement
All balls (rollers) in a particular roll bearing.
4. Ball (roller) group ball (roller) set
Roll a ball (roller) inside the bearing.
5. Cylindrical roller
The busbar outside the roller is essentially a straight line; it is parallel to the roller axis.
6. Needle roller
Small diameter cylindrical roller with a large ratio of length to diameter; generally the length is between 3 and 10 times the diameter; but the diameter generally does not exceed 5 mm. The needle head can have several shapes.
7. Tapered roller tapered roller
The busbar outside the outer surface of the roller is basically a straight line; and intersects the roller axis line; generally a truncated cone.
8. (convex) ball convex roller convex roller
The outer surface of the roller is convexly curved in the plane containing its axis.
9. Concave roller conveyor roller
The outer surface of the roller is concavely curved in the plane containing its axis.
10. Symmetrical spherical roller convex symmetrical roller
The outer surface of the convex spherical roller is symmetrical at both ends of the plane passing through the middle of the roller and straight to its axis.
11. Asymmetric spherical roller
The outer surface of the convex spherical roller passes through the middle of the roller; the two ends of the plane perpendicular to the axis of the axis are symmetrically symmetric.
12. Convex roller
The outer surface of the cylindrical or conical roller is essentially in the plane containing the axis of the roller; it is connected to the micro-convex curve; to avoid stress gathering at the end of the roller and the track touch.
13. Retouching roller
At the end of the outer surface of the roller; its diameter is slightly modified; to avoid stress gathering at the end of the roller and raceway touch.
14. Spiral wound roller
2. The steel wire is wound into a spiral roller.
15. Roller end face
It is straight to the end of the end of the roller axis.
16. Roller end face roller lavge end face
The end face of a tapered roller or an asymmetrical spherical roller.
17. Roller small end face roller small end face
The end face of a tapered roller or an asymmetrical spherical roller head.
18. Roller chamfering roller chamfer
The appearance of the outer surface of the roller and the end surface.
(6) Persistence
1. Wave-shaped cage
A roll bearing consisting of one or two wave-shaped annular parts.
2. Stick to the pocket (window) hole cage pocket
Persist the hole or opening in the rack; to accommodate one or more tumblers.
3. Stick to the beam bare bar
Adhere to a little on the shelf; used to separate the adjacent pockets.
4. Stick to the claws of the cage prong
A cantilever that protrudes from a shelf or a semi-stick frame.
5. Stick to the pillar load plug
Generally cylindrical column; can be used through the axial hole of the roller.
6. Flange-guided land riding cage
A support frame that is radially guided (centered) by the shoulder surface of the bearing ring or bearing washer.
three. Bearing equipment and sub-components:
(1) Bearing equipment
1. Paired device paired mounting
The two sets of tumbling bearing ends face a device on the same axis as the end face; it can be regarded as a whole when working. The bearing can be back-to-back, face-to-face or in series.
2. Combination device
Three or more sets of tumbling bearing ends face a device on the same axis as the end face; it can be considered as a whole during operation.
3. Back-to-bacd arrangement
Two sets of rolling bearings adjacent to the outer ring of the opposite side of the device approach.
4. Face-to-face arrangement
Two sets of tumbling bearings adjacent to the outer ring front facing the front of the device approach.
5. Tandem arrangement
The set of bearing outer ring of two or more sets of rolling bearings is opposite to the front of the outer ring of the next set of bearings.
6. Paired match pair
Two sets of rolling bearings selected or made according to a predetermined characteristic (generally according to preload or clearance); and installed in the same way according to the rules.
7. Matching stacked stack
Three or more sets of rolling bearings are given a predetermined characteristic; generally selected or produced according to preload or clearance; and installed in accordance with the rules.
(two) sub-components
1. Sub-unit
A bearing ring or bearing washer that can be freely separated from the bearing; or a bearing ring or bearing washer with a holding frame and a rolling body; a rollover and a holder assembly that can freely separate from the bearing.
2. Interchangeable sub-unit
A sub-assembly can be exchanged by other sub-components of the same group without affecting the function of the bearing.
3. Inner ring cage and ball (roller) assembly inner ring cage and ball (roller) assembly
A sub-assembly consisting of an inner ring, a ball (roller) and a support frame.
4. Conical inner ring assembly cone assembly
a sub-assembly consisting of a conical inner ring, a tapered roller and a holding frame.
5. Outer ring, cage and ball (roller) assembly outer ring cage and ball (roller) assembly
a sub-assembly consisting of an outer ring, a ball (roller) and a support frame.
6. Needle roller bearing without inner ring needle roller bearing without inner ring
A sub-assembly consisting of an outer ring and a full-loaded needle or an outer ring and a needle roller and a holding frame. When required, the bearing replenishment can be added to this article; for example: "needle bearing; full ; stamping outer ring; no inner ring" or "needle bearing has a support frame; mechanism ferrule; no inner ring".
(3) Roller and holder components
1. Rolling element and cage assembly
a sub-assembly consisting of a roll body and a support frame.
2. Ball (roller) and cage assembly ball (roller) and cage assembly
A sub-component consisting of a roll (roller) bearing roll and an abutment; when not specifically used for a radial bearing or a thrust bearing.
3. Ball and cage radial (thrust) assembly ball and cage radial (thrust)assembly
Centripetal (thrust) ball bearing ball and holder assembly.
4. Roller and cage radial (thrust) assembly
Roller and retainer assemblies for radial (thrust) roller bearings. When required; roller types can be added to this strip; for example, "needle and bracket thrust assemblies" or "cylindrical rollers and cages" Component".
four. Scale (a) scale plan and series
1. Scale plan
A system or table containing the dimensions of a rolling bearing.
2. Bearing series bearing series
A specific set of tumbling bearings; with progressively added dimensions; in most cases there is the same touch angle and there is a certain relationship between the physical dimensions.
3. Scale series dimension series
Width series or combination of height series and diameter series; tapered roller bearings also contain viewpoints.
4. Diameter series diameter series
A part of China's current normative scale plan; a series of bearing outer diameters; for each gauge bearing inner diameter; there is a series of outer diameters; and there is often a specific relationship between the two diameters.
5. Width series width series
A part of China's current norm scale plan. The series of bearing widths; the inner diameter of each diameter series; a width series.
6. Height series
China's current standard thrust bearing scale plan is somewhat. The bearing height of the series; the diameter of the bearing for each diameter series; there is a series of heights.
7. View series series angle series
China's current standard tapered roller bearing scale plan is a bit. A specific size of the touch angle.
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