1128
1000 & 59000 Series Thin Section Thrust Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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1128 Bearing Product Overview & Core Advantages
The 1128 metric thrust ball bearing is engineered for demanding applications requiring high axial load capacity and precision. This thrust bearing is designed to accommodate unidirectional axial loads exclusively, making it an ideal solution for heavy-duty thrust applications. Manufactured from 52100 Chrome Steel for both rings and balls, it ensures superior durability and wear resistance. Its open design necessitates lubrication but allows for high-speed operation, with a limiting speed of 1,660 rpm. The bearing's compact design, combined with its high axial static load rating of 131,040 lbf, provides a robust and reliable solution for high-stress environments.
1128 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1128 | Standard metric series designation for a thrust ball bearing with a 140mm bore and 200mm outside diameter. |
| Open | No integral seals or shields. This design allows for higher speeds and custom lubrication but requires a clean operating environment or external sealing. |
1128 Bearing Structural Features & Performance Benefits
- High Axial Load Capacity: The bearing's geometry and use of 52100 Chrome Steel components enable it to support exceptionally high axial static loads (131,040 lbf) and dynamic loads (14,390 lbf), making it suitable for heavy thrust applications.
- Precision Ground Components: Tight tolerances on the bore diameter and outside diameter ensure precise shaft and housing fits, contributing to stable operation and extended service life.
- High-Speed Capability: The open design and chrome steel cage minimize friction and allow for a limiting speed of 1,660 rpm, which is critical for many industrial drives and machinery.
- Robust Construction: The single-direction thrust design is simple and effective, providing reliable performance under heavy axial loads. The specified chamfer dimensions facilitate easier installation.
1128 Bearing Typical Application Areas
- Industrial Gearboxes: For positioning and supporting thrust loads in large gear sets.
- Heavy-Duty Machinery: Used in applications such as vertical pumps, extruders, and crane hooks where significant unidirectional axial forces are present.
- Power Transmission Systems: Ideal for supporting axial loads in large shafts and spindles within turbines and heavy compressors.
- Machine Tools: Employed in setups requiring precise axial location and high thrust capacity.
