Manufactured by CHG Bearing, the 81140 is a precision Cylindrical Roller Thrust Bearings. Key dimensional parameters include a 200 mm bore diameter, a 250 mm outer diameter, and a mm overall width. This component is designed to meet standard load requirements and ensure consistent operational performance. For comprehensive technical evaluation, please explore the detailed specifications, dimensional data, product images, and CAD drawings provided below. A complete PDF data sheet is also readily available for direct download to support your engineering and procurement needs.
81140 - Cylindrical Roller Thrust Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 81140 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Cylindrical Roller Thrust Bearing |
| Design Type | Single Direction |
| Load Direction | Axial |
| Dimensions | |
| Bore Diameter (d) | 200 mm |
| Outer Diameter (D) | 250 mm |
| Minimum Chamfer Dimension rmin | 1.1 mm |
| Overall Height H | 37 mm |
| Inner-Ring Land Diameter (L1 / d1) | 203 mm |
| Outer-Ring Land Diameter (L2 / D1) | 247 mm |
| Performance | |
| Limiting Speed – Grease (r/min) | 530 r/min |
| Limiting Speed – Oil-air (r/min) | 700 r/min |
| Basic Static Axial Load Rating C0a (N) | 1326 N |
| Basic Dynamic Axial Load Rating Ca (N) | 278 N |
| Material | |
| Mass (kg) | 4.82 kg |
81140 250 mm 247 mm 200 mm 203 mm Frequently Asked Questions about 81140 Cylindrical Roller Thrust Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for 81140. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
Beyond standard alloy steel, CHG Bearing can customize the 81140 Cylindrical Roller Thrust Bearings using AISI 440C stainless steel, black oxide coating, zinc-nickel plating, or hybrid ceramic (Si3N4) balls for applications involving chemical exposure, marine salt fog, or galvanic current hazards.
Built for demanding industrial environments, the 81140 Cylindrical Roller Thrust Bearings by CHG Bearing boasts a dynamic load rating (Cr) of standard dynamic and a static load threshold (C0r) of standard static. The optimized internal raceway geometry balances stress distribution, mitigating edge loading even when operating under peak mechanical stresses.
To extend the trouble-free lifespan of CHG Bearing 81140, preventive maintenance routines should monitor operating housing temperature (normally maintaining below 70°C) and conduct regular vibration FFT analysis to identify early raceway micro-pitting before unexpected line halts occur.
