โดย admin | ม.ค. 11, 2016 | Needle roller bearings
Needle bearings feature a smaller cross-section, higher load-carrying capacity, greater rigidity, and lower inertia forces that facilitate size and weight reductions in machinery.
- Needle roller and cage assemblies are offered in single or double row, solid or split cage, metric and inch sizes; as well as in connecting rod bearings for special applications.
- Single and double row bearings are available with or without ribs, and with or without inner rings.
- Thrust bearings are offered in single row roller and cage assemblies.
- Yoke and stud type track rollers are also available.
โดย admin | ม.ค. 11, 2016 | Spherical roller bearings
Spherical roller bearings are dedicated to extremely severe applications and must support high loads, severe misalignment, contaminated environments, shocks, and vibrations. And with the industry’s highest load rating and production coming from a factory near you, there’s no reason to look anywhere else for spherical roller bearings.
- Reduced friction torque (as much as 30% less), offering lower operating temperature, with lower power and lubricant consumption.
- Appreciably increased operating speed, allowing an extended scope of applications.
- High temperature capacity of up to 200°C (392°F) for metallic cage bearings. Dimensional stability is ensured by a specific heat treatment.
- A +/- 0.5° misalignment capability, without reducing the load capacity, and up to 1° 30’ in case of low loads.
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โดย admin | ม.ค. 11, 2016 | Tapered-roller-bearings
Tapered roller bearings utilize conical rollers and raceways, arranged so that the rollers and raceways meet at a common apex. The rollers are guided by contact between the large end of the roller and a rib on the inner ring. This provides high capacity for radial and single thrust loads.
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โดย admin | ม.ค. 11, 2016 | Ball Bearings
Double-row, self-aligning bearings utilize an inner ring with a single spherical raceway. In this configuration, the inner and outer rings can be misaligned relative to each other. The resulting effect is a comparatively large single angle that imposes moment loads upon the balls.
โดย admin | ม.ค. 11, 2016 | Ball Bearings
TWO OPTIONS TO PREVENT ELECTRICAL
Electrical pitting often occurs in bearings used in electrical equipment, such as motors and power generators, as a result of current leakage. An electrical current present near a bearing can flow to the inside of the bearing, causing sparks that damage the rolling contact surface, ultimately leading to bearing failure. This electrical pitting and can be prevented with coated bearings or ceramic hybrid bearings.
