Cheap PriceList for AU0817-5 - Automobile Generator Non-standard Bearings – Jingyi Bearing

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Cheap PriceList for AU0817-5 - Automobile Generator Non-standard Bearings – Jingyi Bearing Detail:

The role of clutch release bearing

The clutch release bearing is installed between the clutch and the transmission. The release bearing seat is loosely sleeved on the tubular extension of the first shaft bearing cover of the transmission. The shoulder of the release bearing is always against the release fork through the return spring and retracts to the final position. , Keep a gap of about 3~4mm with the end of the separation lever (separation finger).
Since the clutch pressure plate, the release lever and the engine crankshaft operate synchronously, and the release fork can only move axially along the clutch output shaft, it is obviously impossible to directly use the release fork to dial the release lever. The release bearing can make the release lever rotate side by side. The output shaft of the clutch moves axially, which ensures that the clutch can engage smoothly, disengage softly, reduce wear, and extend the service life of the clutch and the entire drive train.

Requirements for clutch release bearings

The clutch release bearing should move flexibly, without sharp noise or jamming, its axial clearance should not exceed 0.60mm, and the wear of the inner race should not exceed 0.30mm.

Fault judgment and inspection of the damage of the release bearing

If the separator bearing of the commercial combiner fails to meet the above requirements, it is deemed to be malfunctioning. After a failure occurs, the first thing to judge is which phenomenon belongs to the damage of the release bearing. After the engine is started, lightly step on the clutch pedal. When the free stroke is just eliminated, the “rustling” sound that appears is the release of the bearing.
When checking, you can remove the clutch bottom cover, and then depress a little accelerator pedal to slightly increase the engine speed. If the noise increases, you can observe whether there are sparks. If there are sparks, it means that the clutch release bearing is damaged. If the sparks burst out one after another, it means that the release bearing ball is broken. If there is no spark, but there is a metal cracking sound, it means excessive wear.

Causes of damage to clutch release bearings

1. Working conditions and forces of clutch release bearings
The release bearing is subjected to axial load, impact load, and radial centrifugal force during high-speed rotation. In addition, because the fork thrust and the reaction force of the release lever are not on the same straight line, a torsional moment is also formed. The clutch release bearing has poor working conditions, intermittently rotating at high speed and bearing high-speed friction, high temperature, poor lubrication conditions, and no cooling conditions.

2. Causes of damage to the clutch release bearing

The damage of the clutch release bearing has a lot to do with the operation, maintenance and adjustment of the driver. The reasons for the damage are roughly as follows:
1) The working temperature is too high to cause overheating
Many drivers often half-depress the clutch when turning or decelerating, and some have their feet on the clutch pedal after shifting; some vehicles have too much adjustment of the free stroke, which makes the clutch disengagement incomplete and in a semi-engaged and semi-disengaged state. A large amount of heat generated by dry friction is transferred to the release bearing. The bearing is heated to a certain temperature, and the butter melts or dilutes and flows, which further increases the temperature of the release bearing. When the temperature reaches a certain level, it will burn out.

2) Lack of lubricating oil and wear
The clutch release bearing is lubricated with grease. There are two ways to add grease. For the 360111 release bearing, open the back cover of the bearing and fill in the grease during maintenance or when the transmission is removed, and then reinstall the back cover. Just close; for the 788611K release bearing, it can be disassembled and immersed in molten grease, and then taken out after cooling to achieve the purpose of lubrication. In actual work, the driver tends to ignore this point, causing the clutch release bearing to run out of oil. In the case of no lubrication or less lubrication, the amount of wear of the release bearing is often several to several tens of times the amount of wear after lubrication. As the wear increases, the temperature will also be greatly increased, so that it is more vulnerable to damage.

3) The free stroke is too small or the number of loads is too much
According to the requirements, the clearance between the clutch release bearing and the release lever is 2.5mm. The free stroke reflected on the clutch pedal is 30-40mm. If the free stroke is too small or there is no free stroke at all, it will cause the separation lever to interact with each other. The release bearing is in a normally engaged state. According to the principle of fatigue failure, the longer the working time of the bearing, the more serious the damage; the more times the bearing is loaded, the easier it is for the release bearing to produce fatigue damage. Moreover, the longer the working time, the higher the temperature of the bearing, the easier it is to burn, which reduces the service life of the release bearing.

4) In addition to the above three reasons, whether the release lever is adjusted smoothly, and whether the release bearing return spring is good, also has a great influence on the damage of the release bearing.

Problems that should be paid attention to in use

1) In accordance with the operating regulations, avoid the clutch half-engaged and half-disengaged and reduce the number of times the clutch is used.

2) Pay attention to maintenance. Regularly or during annual inspection and maintenance, use the steaming method to soak the butter so that it has sufficient lubricant.

3) Pay attention to leveling the clutch release lever to ensure that the spring force of the return spring meets the requirements.

4) Adjust the free stroke to meet the requirements (30-40mm) to prevent the free stroke from being too large or too small.

5) Minimize the number of engagements and separations, and reduce impact load.

6) Step on lightly and easily to make it join and separate smoothly.

Problems that should be paid attention to in use

BEARING NO. Inner Dia. Outer Dia. High
B8-23D 8 23 14
B8-74D 8 22 11
B8-79D 8 23 11
B8-85D 8 23 14
B10-46D 10 23 11
B10-50D 10 27 11
B10-27D 10 27 14
W6000-2RS 10 26 10
B9000DRR 10 27 14
W6200RR 10 30 14.3
94910-2140 12 35 18
B12-32D 12 32 10
B12-32DW 12 32 13
W6001-2RS 12 28 12
62201-2RS 12 32 16
W6201-ZRS 12 32 16
6201-RRU 12 35 18
6201-RR 12 32 10
12BC04 12 42 10
B15-86D 15 47 14
949100-3190 15 43 13
949100-3360 15 46 14
949100-3480 15 38 19
949100-3820 15 52 16
B15-83D 15 47 18
B17-52D 15 52 24
949100-2790 15 35 13
949100-3660 15 32 11
W6200RR 15 32 11
B15-69 15 35 13
6202SRR 15 35 13
7109Z 15 35 9
87502RR 15 35 12.7
949100-3330 17 52 24(26)
6403-2RS 17 62 17
B17-107D 17 47 19
B17-116D 17 52 18
B17-47D 17 47 24
B17-99D 17 52 17
62303-2RS 17 47 19
W6203-2RS 17 40 17.5
87503RR 17 40 14.3
REF382 17 47 24
437-2RS 17 52 16
62304-2RS/17 17 52 21
6904DW 18.8 37 9
6904WB 20 37 8.5
623022 22 56 21
87605RR 25 62 21
W6205-2RS 25 52 20.6
W6305-2RS 25 62 25.4
3051 25 62 19
3906DW 30 47 9
W6306-2RS 30 72 30.2
3306-2RS 30 72 30.2
BEARING NO. Inner Dia. Outer Dia. High C High B
6303/15 15 47 14 14
412971 30 62 21 24
440682 35 75 20 20
62/22 22 50 14 14
63/22 22 56 16 16
60/28 28 52 12 12
63/28 28 68 18 18
63/32 32 75 20 20
35BCD08 35 80 21 28
B32/10 32 72 19 19
35BW08 35 75 18 25
CR1654 30 57.15 24 13
B-35 35 72 17 26
B-30 30 62 16 25
98205 25 52 9 9
6207N/VP089 35 72 17 17
RW207CCR 35 72 21.5 21.5
88506-2RS 30 62 16 24
88507-2RS 35 72 17 26
DG306725W-2RS 30 67 17 25
DG357222 35 72 17 22
10N6207F075E 35 72 17 17
6207E22GY-4 35 72 17 21
88128R 38.894 80 21 27.5
B32-10 32 72 19
88107 35 72 17 25
333/18 17 52 18 18
6302 RMX 10.2 42 13 13
40BCV09 40 90 23 28
DG4094-2RS 40 94 26 26
DG4094W12 40 94 26 31
30BCDS2 30 62 24 16
30BCDS3 30 67 25 17
35BCDS2 35 72 26 17

Product detail pictures:

Cheap PriceList for AU0817-5 - Automobile Generator Non-standard Bearings – Jingyi Bearing detail pictures

Cheap PriceList for AU0817-5 - Automobile Generator Non-standard Bearings – Jingyi Bearing detail pictures

Cheap PriceList for AU0817-5 - Automobile Generator Non-standard Bearings – Jingyi Bearing detail pictures

Cheap PriceList for AU0817-5 - Automobile Generator Non-standard Bearings – Jingyi Bearing detail pictures

Cheap PriceList for AU0817-5 - Automobile Generator Non-standard Bearings – Jingyi Bearing detail pictures


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