Manufactured by CHG Bearing, the 51188 is a precision Tapered Roller Thrust Bearings. Key dimensional parameters include a 440 mm bore diameter, a 540 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.
51188 - Tapered Roller Thrust Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 51188 |
| Brand | CHG® |
| Construction | Thrust Ball Bearing |
| Type | Single-Direction Thrust Ball Bearing |
| Characteristics | |
| Load Direction | Axial — Single Direction |
| Limiting Speed — Grease (r/min) | 360 r/min |
| Limiting Speed — Oil (r/min) | 500 r/min |
| Dimensions | |
| Bore Diameter (d) | 440 mm |
| Outer Diameter (D) | 540 mm |
| Contact Angle α (°) | N/A ° |
| Chamfer Dimension r (min.) | 2.1 mm |
| Dimension A | N/A mm |
| Bearing Height T | 80 mm |
| Dimension d1 | 444 mm |
| Dimension D12 | 535 mm |
| Dimension C | N/A mm |
| Dimension B | N/A mm |
| Chamfer Dimension r1 (min.) | N/A mm |
| Performance | |
| Basic Dynamic Axial Load Rating Ca (kN) | 527 kN |
| Basic Static Axial Load Rating C0a (kN) | 3000 kN |
| Material | |
| Mass (kg) | 42 kg |
51188 540 mm 444 mm 440 mm 535 mm Frequently Asked Questions about 51188 Tapered Roller Thrust Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To extend the trouble-free lifespan of CHG Bearing 51188, 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.
To safeguard CHG Bearing 51188 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (440 mm x 540 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
The CHG Bearing 51188 is rated for limiting speeds up to standard rated RPM under forced oil-mist or circulating oil lubrication regimes. When lubricated with factory-filled synthetic high-speed grease, safe continuous velocity is maintained at approximately 75% to 85% of the maximum nominal limit, preventing thermal runaway.
Standard batches of CHG Bearing 51188 conform strictly to ISO Class Normal (ABEC-1). For high-precision machine tool spindles, gearboxes, or robotics requiring tighter runouts, CHG Bearing can provide custom batches graded to ISO Class 6 (P6/ABEC-3) or ISO Class 5 (P5/ABEC-5) with 100% micrometer verification.
