51104
51100 & 51000 Series Single Direction Thrust Ball Bearings
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Part No.
Part No.
51104
Basic Information
Bearing type
Ball
System of measurement
Metric
Weight
0.037 kg
Seal type
Open
For load direction
Thrust
Main Dimensions
Bore diameter
20 mm
Bore diameter tolerance
-0.01mm to 0
Outside diameter
35 mm
Outside diameter tolerance
-0.012mm to 0
Width
10 mm
Width tolerance
+0.02mm to -0.25mm
Chamfer dimension
0.3 mm
Ball & Washer Dimensions
Housing washer inner diameter
21 mm
Shaft washer outer diameter
35 mm
Performance
Temperature range
-30° to 110 °C
Axial dynamic load rating
3398 lbf
Axial static load rating
6525 lbf
Limiting speed
10 X 1000 rpm
Materials
Ring material
52100 Chrome Steel
Ball material
52100 Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
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51104 Bearing Product Overview & Core Advantages
The 51104 is a metric thrust ball bearing engineered for applications requiring high-precision axial load support. This open-type bearing is designed to accommodate thrust loads in a single direction, featuring a compact design with a 20 mm bore and 35 mm outside diameter. Manufactured from 52100 Chrome Steel for both rings and balls, it delivers exceptional durability and wear resistance. Its high axial static load rating of 6525 lbf and precise dimensional tolerances make it ideal for high-reliability, space-constrained assemblies demanding accurate axial positioning.
51104 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 51104 | Standard designation for a metric thrust ball bearing with 20 mm bore, 35 mm OD, and 10 mm width. |
| Open (Seal Type) | No integral seals or shields, allowing for higher speed capability and requiring external sealing in contaminated environments. |
51104 Bearing Structural Features & Performance Benefits
- High Axial Load Capacity: The bearing's geometry and use of 52100 Chrome Steel components enable it to handle significant axial dynamic load ratings of 3398 lbf and high static loads, providing robust support in thrust applications.
- Precision & Stability: Manufactured with tight dimensional tolerances on the bore, outside diameter, and width, ensuring precise location and smooth operation within the assembly.
- High-Speed Capability: The stainless steel cage ensures low friction and high strength, contributing to a limiting speed of 10,000 rpm, making it suitable for high-speed thrust applications.
- Corrosion Resistance & Compliance: The stainless steel cage and ROHS/REACH compliance ensure material longevity and adherence to environmental regulations.
- Wide Temperature Range: Operational from -30°C to 110°C, providing reliable performance across a broad spectrum of industrial environments.
51104 Bearing Typical Application Areas
- Automotive Systems: Clutch release bearings, steering systems.
- Industrial Machinery: Machine tool spindles, indexing heads, and other equipment requiring precise axial location.
- Pumps and Compressors: Thrust support in centrifugal pumps and compressor shafts.
- Precision Instruments: Optical devices, measuring equipment, and other high-accuracy mechanisms.
