1109
1000 & 59000 Series Thin Section Thrust Ball Bearings
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Part No.
Part No.
1109
Basic Information
Bearing type
Ball
System of measurement
Metric
Weight
0.36 kg
Seal type
Open
For load direction
Thrust
Main Dimensions
Bore diameter
45 mm
Bore diameter tolerance
-0.012mm to 0
Outside diameter
73 mm
Outside diameter tolerance
-0.015mm to 0
Width
22 mm
Width tolerance
+0.02mm to -0.25mm
Chamfer dimension
0.5 mm
Ball & Washer Dimensions
Housing washer inner diameter
45.2 mm
Performance
Temperature range
-30° to 110 °C
Axial dynamic load rating
2400 lbf
Axial static load rating
15972 lbf
Limiting speed
4.41 X 1000 rpm
Lubrication
Required
Materials
Ring material
52100 Chrome Steel
Ball material
52100 Chrome Steel
Cage material
Chrome Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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1109 Bearing Product Overview & Core Advantages
The 1109 metric thrust ball bearing is engineered for high-precision axial load applications requiring exceptional reliability. This open-type bearing is designed specifically to accommodate unidirectional thrust loads with high efficiency. Manufactured from 52100 Chrome Steel for both rings and balls, it offers superior durability and consistent performance in demanding environments. Its compact design and precise dimensional tolerances make it an ideal choice for applications where space is constrained and axial load capacity is paramount.
1109 Bearing Model Code Explained, Specifications & Naming Convention
| Code Element | Technical Significance |
|---|---|
| 1109 | Standard metric series designation for a thrust ball bearing with a 45mm bore. |
| Open (Seal Type) | No integral seals, allowing for higher limiting speeds and custom lubrication schemes. Requires a clean operating environment or external sealing. |
1109 Bearing Structural Features & Performance Benefits
- High Axial Load Capacity: The bearing's design is optimized to handle significant thrust loads, with a high axial static load rating of 15,972 lbf and a dynamic load rating of 2,400 lbf, ensuring long service life under heavy-duty conditions.
- Precision Ground Components: Manufactured with tight dimensional tolerances on the bore diameter and outside diameter, guaranteeing precise shaft and housing fits for stable operation.
- Robust Material Construction: The use of 52100 Chrome Steel for the rings, balls, and cage provides excellent wear resistance and fatigue life, contributing to the bearing's overall reliability.
- High-Speed Capability: The open design and robust Chrome Steel cage contribute to a high limiting speed of 4,410 rpm, making it suitable for various high-speed applications.
1109 Bearing Typical Application Areas
This thrust ball bearing is widely used in machinery and equipment where primary axial loads are present. Key sectors include:
- Automotive: Thrust applications in transmissions and steering systems.
- Industrial Machinery: Machine tool spindles, heavy-duty gearboxes, and vertical pumps.
- Power Transmission: Applications in worm gear reducers and other speed reduction units.
- General Engineering: Any application requiring reliable accommodation of high unidirectional axial loads.
