Idemitsu NTG NIGACE W (BF) Low-Noise Long-Life Grease for Precision Bearings
NIGACE W (BF) is a specialized grease for precision rolling bearings. A published bearing lubrication guide lists it as an Idemitsu NTG product and identifies its key characteristics as low noise and long life. The BF version is listed with a urea thickener and a mineral/synthetic base-oil system. It has a light tan appearance and a recommended operating range of approximately -30°C to +150°C, making it suitable for precision bearings requiring stable performance from low-temperature start-up through elevated-temperature operation. A separate precision-bearing technical reference describes NIGACE W as a synthetic-oil/polyurea grease, with a high dropping point, low contaminant level and good heat resistance. That source lists a temperature range of -20°C to 150°C, so those detailed values should be treated as representative data from another NIGACE W reference rather than guaranteed BF-version limits.
Product Details
Product Features
Low Noise:NIGACE W (BF) is specifically identified as a low-noise bearing grease.
Long Service Life:Designed for bearing applications where extended lubrication life is important.
Good Heat Resistance:Published data show an upper service temperature of about 150°C, while another NIGACE W reference lists a dropping point of 230°C or higher.
Urea-Based Thickener:Uses a urea/polyurea thickening system suitable for high-temperature and long-life bearing lubrication.
Precision Bearing Suitability:NIGACE W is listed in bearing technical data as a standard grease for precision rolling-bearing applications.
Product Applications
Small Precision Rolling Bearings:For bearings requiring quiet, stable and long-term operation.
Electric Motor Bearings:Suitable for small motors, fans and precision drive mechanisms.
Office and Precision Equipment:Can be used in small rotating bearing mechanisms in printers, copiers and information equipment.
General Precision Machinery:For rotating components where noise control, low friction and service life are important.
| Item | NIGACE W (BF) |
|---|---|
| Product Type | Low-Noise Long-Life Precision Bearing Grease |
| Brand | Idemitsu NTG |
| Model | NIGACE W (BF) |
| Base Oil | Mineral / Synthetic Oil System |
| Thickener | Urea-Based |
| Appearance | Light Tan |
| Penetration at 25°C | 268 |
| Dropping Point | ≥230°C |
| Oxidation Stability | 0.2 kg/cm² at 98.9°C × 100 h |
| Evaporation Loss | 1.0% at 98.9°C × 22 h |
| Oil Separation | 1.3% at 100°C × 24 h |
| Low-Temperature Starting Torque | 559 g·cm at 0°C |
| Service Temperature Range | -30°C to +150°C |
