Manufactured by CHG Bearing, the NU18/1180 is a precision Single Row Cylindrical Roller Bearings. Key dimensional parameters include a 1180 mm bore diameter, a 1420 mm outer diameter, and a 106 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.
NU18/1180 - Single Row Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NU18/1180 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Single Row Cylindrical Roller Bearing |
| Number of Rows | Single Row |
| Tolerance Class | P0 |
| Dimensions | |
| Bore Diameter (d) | 1180 mm |
| Width (B) | 106 mm |
| Outer Diameter (D) | 1420 mm |
| Bore Diameter Tolerance | -0.125 – 0 mm |
| Outside Diameter Tolerance | -0.16 – 0 mm |
| Width Tolerance | -1.25 – 0 mm |
| Enveloping Circle Diameter Fw | 1245 mm |
| Inner Ring Chamfer | 6 min mm |
| Outer Ring Chamfer | 6 min mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 3250 kN |
| Basic Static Load Rating C0 (kN) | 8530 kN |
| Material | |
| Mass (kg) | 328 kg |
| Ring Material | Bearing Steel |
| Rolling Element Material | Bearing Steel |
| Cage Material | Brass |
NU18/1180 1420 mm 1180 mm 106 mm 1245 mm Frequently Asked Questions about NU18/1180 Single Row Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
As standard production, CHG Bearing subjects NU18/1180 to precision bainite or martensite quenching, offering dimensional stability up to 120°C (248°F). For high-heat processing equipment, CHG Bearing also supplies custom S0 (150°C), S1 (200°C), or S2 (250°C) stabilization heat treatments upon request to prevent residual austenite transformation.
To ensure optimum performance of CHG Bearing NU18/1180 Single Row Cylindrical Roller Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 1180 mm bore. For the 1420 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
To safeguard CHG Bearing NU18/1180 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (1180 mm x 1420 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
The CHG Bearing NU18/1180 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.
