51112
51100 & 51000 Series Single Direction Thrust Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
51112
Basic Information
Bearing type
Ball
System of measurement
Metric
Weight
0.27 kg
Seal type
Open
For load direction
Thrust
Main Dimensions
Bore diameter
60 mm
Bore diameter tolerance
-0.015mm to 0
Outside diameter
85 mm
Outside diameter tolerance
-0.02mm to 0
Width
17 mm
Width tolerance
+0.02mm to -0.3mm
Chamfer dimension
1 mm
Ball & Washer Dimensions
Housing washer inner diameter
62 mm
Shaft washer outer diameter
85 mm
Performance
Temperature range
-30° to 110 °C
Axial dynamic load rating
9360 lbf
Axial static load rating
27450 lbf
Limiting speed
5 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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51112 Bearing Product Overview & Core Advantages
The 51112 is a metric thrust ball bearing engineered for high-precision axial load applications. Designed exclusively to accommodate thrust loads in a single direction, this bearing features an open design for optimal lubrication access and heat dissipation. Manufactured from 52100 Chrome Steel with a stainless steel cage, it delivers exceptional durability and reliable performance in demanding environments. Its compact cross-section and precise dimensional tolerances make it ideal for applications where space constraints and axial load capacity are critical design considerations.
51112 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| 51112 | Standard designation for a metric thrust ball bearing with a 60mm bore and 85mm outside diameter. |
| Open (Seal Type) | No integral seals or shields, allowing for custom lubrication schemes and facilitating higher speed operation with external lubrication. |
51112 Bearing Structural Features & Performance Benefits
- High Axial Rigidity & Load Capacity: The bearing's dedicated thrust design provides high stiffness against axial forces, with a substantial axial dynamic load rating of 9360 lbf and an axial static load rating of 27450 lbf.
- Precision Engineering: Manufactured to tight dimensional tolerances on the bore, outside diameter, and width, ensuring precise location and smooth operation within assemblies.
- Durable Material Construction: Components made from 52100 Chrome Steel (rings and balls) offer high wear resistance and fatigue life. The stainless steel cage provides excellent corrosion resistance and cage integrity.
- Optimized for Lubrication: The open seal type allows for easy re-lubrication and is suitable for oil or grease systems, contributing to its limiting speed of 5000 rpm and extended service life.
51112 Bearing Typical Application Areas
This bearing is commonly specified in equipment requiring robust axial load support, including:
- Automotive Steering Systems (e.g., thrust support in steering columns)
- Machine Tool Components (e.g., lead screw supports, indexing heads)
- Industrial Pumps and Compressors
- Material Handling Equipment
- Precision Gearboxes and Transmissions
