51124
51100 & 51000 Series Single Direction Thrust Ball Bearings
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Part No.
Part No.
51124
Basic Information
Bearing type
Ball
System of measurement
Metric
Weight
1.15 kg
Seal type
Open
For load direction
Thrust
Main Dimensions
Bore diameter
120 mm
Bore diameter tolerance
-0.02mm to 0
Outside diameter
155 mm
Outside diameter tolerance
-0.025mm to 0
Width
25 mm
Width tolerance
+0.025mm to -0.3mm
Chamfer dimension
1 mm
Ball & Washer Dimensions
Housing washer inner diameter
122 mm
Shaft washer outer diameter
155 mm
Performance
Temperature range
-30° to 110 °C
Axial dynamic load rating
19170 lbf
Axial static load rating
68625 lbf
Limiting speed
3 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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51124 Bearing Product Overview & Core Advantages
The 51124 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 delivers exceptional reliability in compact assemblies. Its construction from 52100 Chrome Steel ensures high durability and wear resistance, making it ideal for applications demanding precise axial positioning and robust performance under significant static and dynamic thrust forces. The open design facilitates efficient lubrication management in appropriate operating environments.
51124 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 51124 | Standard model number for a metric thrust ball bearing. |
| Open (Seal Type) | No integral seals or shields. Requires external sealing in contaminated environments but allows for higher speed potential and direct lubrication access. |
51124 Bearing Structural Features & Performance Benefits
- High Load Capacity: Engineered with 52100 Chrome Steel rings and balls, this bearing offers a high axial dynamic load rating of 19,170 lbf and an exceptional axial static load rating of 68,625 lbf, ensuring reliable performance under heavy thrust loads.
- Precision Engineering: Features tight dimensional tolerances on the bore diameter and outside diameter for precise shaft and housing fits, critical for maintaining alignment and performance.
- Stainless Steel Cage: The inclusion of a stainless steel cage provides superior strength and corrosion resistance, contributing to stable operation and a long service life, even at the limiting speed of 3,000 rpm.
- Wide Temperature Range: Suitable for operation within a temperature range of -30°C to 110°C, offering flexibility for various industrial environments.
51124 Bearing Typical Application Areas
This thrust ball bearing is commonly specified in industries and equipment where significant unidirectional axial loads are present. Key applications include:
- Automotive Systems: Thrust applications in transmissions and steering mechanisms.
- Industrial Machinery: Used in machine tool tables, injection molding machines, and heavy-duty jacks.
- Pumps and Compressors: For handling axial forces in vertical pump shafts and compressor assemblies.
- Agricultural Equipment: In gearboxes and powertrains that experience high thrust loads.
