Thrust Ball Bearing:51308

Description

Basic Parameters

Thrust Ball Bearing 51308 (Old Model: 8308) is a single-directional axial load-bearing solution with a 40mm ID, 78mm OD, and 26mm thickness, rated for 61,800N dynamic and 112,000N static loads. Constructed from 52100 bearing steel (HRC 58–62) with a detachable design for easy maintenance, it features precision-ground inner bores, pre-lubrication, and suits applications like machine tool spindles, automotive clutches, and vertical pumps requiring unidirectional axial support.

Features and Performance

Here is the Features and Performance for FODA’s Thrust Ball Bearing 51308 in English, structured to highlight technical specifications and operational advantages:

1. Unidirectional Axial Load Capacity

Design Specialization: Specifically engineered to withstand axial loads in one direction (e.g., thrust forces from rotating shafts), with no capability for radial load resistance.

Load Ratings:Dynamic Load Capacity (C): 61,800 N.Static Load Capacity (C0): 112,000 N.Ideal for applications requiring precise axial positioning, such as machine tool spindles or automotive clutches.

2. Detachable Component Design

Modular Structure: Consists of separable washers and ball cage, enabling easy installation, disassembly, and maintenance (e.g., quick inspection or replacement in gearboxes or lifting equipment).

Time Efficiency: Reduces downtime during servicing, making it suitable for industrial systems requiring frequent maintenance.

3. Precision-Ground Inner Bore

Interference Fit Capability: The inner washer’s bore is precision-ground to tight tolerances, allowing secure interference fit with the shaft.

Stability Assurance: Minimizes axial movement or slippage, ensuring vibration-free operation even at high rotational speeds (e.g., in electric motors or pumps).

4. High-Quality Materials

Bearing Steel Construction:Inner/outer washers and balls made from 52100 bearing steel (GCr15), heat-treated to HRC 58–62 for exceptional wear resistance and fatigue strength.

Suitable for heavy-duty environments (e.g., construction machinery, industrial gearboxes).

Cage Material: Stamped steel or copper cage ensures reliable guidance of rolling elements, reducing friction and enhancing load distribution.

5. Application-Specific Versatility

Adaptability: Widely used in machine tool spindles, automotive clutches, vertical pumps, heavy-duty motors, and hoisting equipment due to its specialized load-bearing design.

Materials and Construction

Bearing Steel Material:The main components, such as the washers and balls, are typically made from bearing steel 52100 (GCr15), offering excellent wear resistance and fatigue strength.

Cage Material:The cage is usually made from copper or steel and serves to secure and guide the rolling elements within the bearing.

Groove Design:The washers feature grooves that direct the motion of the rolling elements, improving accuracy and load distribution.

Product Application

FODA Bearing’s Thrust Ball Bearing 51308 is specifically designed for unidirectional axial loads, offering high-precision positioning and low radial load adaptability. It is widely used in mechanical systems requiring reliable axial support. Below are its core application scenarios and performance matching:

• Machine tool spindles

• Automotive clutches

• Vertical shafts in pumps and compressors

• Heavy-duty electric motors

• Industrial gearboxes

• Lifting and hoisting equipment

Conclusion

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