1. Main structural form
1. One-way thrust ball bearing type 51000 This type of bearing can only bear axial load in one direction, and can limit the movement of the shaft and housing in one direction.
2. Two-way thrust ball bearing type 52000 This type of bearing can bear axial loads in two directions, and can limit the axial movement of the shaft and the housing in two directions.
2. Cage material
When the outer diameter is not greater than 250mm, steel plate (or belt) punching cages are generally used; when the outer diameter is greater than 250mm, solid cages are used. The details are shown in the table below.
|
Bearing series |
Formed cage |
Stamping cage |
Car cage |
|
511 |
51100~51106 |
51107~51152 |
51156~511/530 |
|
522 |
|
52202~52224 |
52226, 52228 |
|
523 |
|
52305~52320 |
52322, 52324 |
|
524 |
|
52405~52415 |
52416~52426 |
3. Minimum axial load
During the operation of the thrust ball bearing, if the external axial load is too small and the bearing is not compressed, due to the action of inertial force, the steel ball will slip and destroy the normal operation of the bearing. Therefore, a certain axial load must be applied to the bearing during use.
4. Allowable inclination angle
The two supporting surfaces of thrust ball bearings must be parallel without any deviation. The centerline of the shaft and the supporting surface of the housing should be guaranteed to be perpendicular, if not, spherical seat rings and self-aligning washers can be used to compensate. If you have any questions, please contact the Technology Center of Renben Group.
5. Tolerance
(1) Shaft ring and middle ring
|
Bearing nominal inner diameter d or center ring nominal inner diameter |
Average inner diameter deviation in a single plane |
Single plane inner diameter change |
Shaft ring middle ring thickness variation Si |
||||||||
|
0 level |
4 level |
0 level |
4 level |
0 level |
6 level |
5 level |
4 level |
||||
|
Exceed |
Arrive |
up |
Down |
up |
Down |
Maximum |
Maximum |
||||
|
— |
18 |
0 |
-8 |
0 |
-7 |
6 |
5 |
10 |
5 |
3 |
2 |
(2) Seat ring
|
Bearing nominal outer diameter |
Average outer diameter deviation in a single plane |
Single plane outer diameter variation VDSp or ∆D2Sp |
Shaft ring or middle ring raceway thickness variation Se |
||||||||
|
0、6、5 level |
4 level |
0、6、5 level |
4 level |
0 level |
6 level |
5 level |
4 level |
||||
|
Exceed |
Arrive |
up |
Down |
up |
Down |
Maximum |
Maximum |
||||
|
— |
18 |
0 |
-11 |
0 |
7 |
8 |
5 |
The same Si value as the same bearing shaft ring |
|||
6. Axial equivalent dynamic load
Thrust ball bearings can only bear axial load, and its axial equivalent dynamic load is: Pa=Fa
7. Axial equivalent static load
The axial equivalent static load of the thrust ball bearing is: P0a=Fa
One-way thrust ball bearing parameters




Bidirectional thrust ball bearing


The thrust ball bearing is a separate type bearing with a contact angle of 90 °, which can only bear axial load and has a low limit speed.
FAQ
What is your company's minimum order quantity (MOQ)?
We highly value flexibility in our cooperation. Standard bearing models are generally in stock. The MOQ depends on your standard oil clearance and manufacturing process. Currently, the minimum order quantity is usually 20-100 sets, depending on the size and specifications of the model. For bulk purchases or long-term cooperative clients, we offer more competitive prices, double the quality, and a flexible MOQ policy. If you have special requirements, please feel free to contact us, and we will do our best to meet your needs.
Do you accept OEM and customization?
Of course! OEM and customization services are one of our core strengths. We have a professional engineering design and R&D team and advanced high-precision CNC production equipment. We can produce non-standard bearings, bearings with special sizes, sealing structures, greases, or precision grades according to your drawings, samples, or technical requirements. Please provide your detailed requirements, and we will provide you with professional solutions and quotations.
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We understand the importance of sample testing. For standard products, we can provide samples free of charge, but you will need to bear the shipping costs. For customized or high-value products, a certain cost fee will be charged for samples, which can be refunded when subsequent orders reach the agreed quantity. Our goal is to ensure your complete satisfaction with the products and to establish a long-term cooperative relationship.
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