51230 M
51200 Series Single Direction Thrust Ball Bearings
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Part No.
Part No.
51230 M
Basic Information
Bearing type
Ball
System of measurement
Metric
Weight
6.1 kg
Seal type
Open
For load direction
Thrust
Main Dimensions
Bore diameter
150 mm
Bore diameter tolerance
-0.025mm to 0
Outside diameter
215 mm
Outside diameter tolerance
-0.03mm to 0
Width
50 mm
Width tolerance
+0.025mm to -0.4mm
Chamfer dimension
1.5 mm
Ball & Washer Dimensions
Housing washer inner diameter
153 mm
Shaft washer outer diameter
212 mm
Performance
Temperature range
-30° to 110 °C
Axial dynamic load rating
55575 lbf
Axial static load rating
180000 lbf
Limiting speed
1.8 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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51230 M Bearing Product Overview & Core Advantages
The 51230 M is a metric thrust ball bearing engineered for demanding applications requiring high axial load capacity and precision operation. This open-type bearing is designed exclusively to accommodate heavy thrust loads in a single direction. Manufactured from high-grade 52100 Chrome Steel for both rings and balls, it delivers exceptional durability and wear resistance. Its core advantages include a high axial dynamic load rating of 55575 lbf and an impressive axial static load rating of 180000 lbf, making it an ideal choice for high-stress environments where space is constrained and reliability is paramount.
51230 M Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| 51230 | Indicates the basic bearing series and size designation for a metric thrust ball bearing. |
| M | Signifies that the bearing is manufactured from copper-manganese alloy steel, offering enhanced dimensional stability and mechanical properties. |
51230 M Bearing Structural Features & Performance Benefits
- High Axial Load Capacity: The bearing's geometry and use of hardened 52100 Chrome Steel components are optimized to handle significant thrust loads, with a static capacity of 180000 lbf, ensuring robust performance under extreme pressure.
- Precision & Rigidity: Features tight dimensional tolerances on the bore diameter (150 mm) and outside diameter (215 mm), providing precise shaft and housing fits for minimal runout and high system rigidity.
- Durability & Corrosion Resistance: The stainless steel cage ensures smooth operation at the limiting speed of 1,800 rpm and offers excellent resistance to corrosion, contributing to a long service life.
- Wide Operating Range: With a temperature range from -30°C to 110°C, this bearing is suitable for use in various industrial environments without performance degradation.
51230 M Bearing Typical Application Areas
This bearing is specifically designed for applications dominated by high axial forces. Common industries and machinery include:
- Industrial Gearboxes and thrust reversers
- Heavy-Duty Machine Tools, such as vertical lathes and boring mills
- Automotive Steering Systems and thrust assemblies
- Construction and Mining Equipment for pivot and slew applications
- Hydraulic Presses and injection molding machines
