Canada
USA
Japan
Bearing material:
Bearing steel material: also known as [chrome steel], steel grade: GCr15 is the international bearing industry-standard special steel.
Advantages: effectively improve the torque performance of the bearing, enhance stability, high hardness, low noise, and long life.
Stainless steel 440: magnetic, with good resistance to oxidation and corrosion, waterproof and rustproof high-temperature resistance and long life, especially suitable for food machinery, medical equipment, instruments, and meters, high-grade crafts, fishing gear, etc.
Stainless steel 304: non-magnetic, soft material that can not be stained fire, acid, and alkali corrosion resistance, for low speed, low precision!
Carbon steel material: low hardness, poor product precision and stability, low speed, and low requirements for the use of parts.
Bearing quality grade:
Bearing quality grade mainly has ordinary grade(P0), motor grade(P6), and fine grade(P5).
Ordinary grade: the quality of bearings for the national standard P0Z1 level, in line with national standards, dimensional accuracy of less than ± 0.01mm, the speed is less than 500rpm, suitable for low-speed, low-demanding environment.
Such as casters, strollers, and toy cars.
Motor grade: Bearing quality is national standard P6Z2 grade or above.
Dimensional accuracy less than 0.007mm, smooth feel, speed less than 8000rpm, low noise, long service life.
Applicable to motors, toy models, automobiles, power tools, pneumatic tools, telecommunications equipment, fitness equipment, sports equipment, and so on.
Boutique grade: the quality of the bearings is above the national standard P5Z3 grade.
Dimensional accuracy is less than 0.005mm [can replace imported] smooth feel, speed greater than 8000rpm, low noise, long service life.
Suitable for high-speed motors, instruments and meters, precision equipment, aviation models, high-grade toys, and other areas with high requirements.
Note: Dimensional accuracy refers to the tolerance of the bearing size, not the bearing swing clearance bearing swing default for the CO group general standard clearance (8-15), the need for small clearance or large clearance, and other special requirements, please contact customer service.
Never use a bearing swing to judge the quality of bearings, swing size is set according to the technical requirements of different environments, and bearing quality is not necessarily related.
Open type: no seal cover Advantages: ultra-high-speed mute, idling effect is good, sealed environment. Disadvantages: poor dustproof effect, easy to enter the dust, impurities, and so on.
2RS: Rubber sealing cover Advantage: Excellent dustproof effect, dustproof and waterproof, used in harsh environments. Disadvantage: Not suitable for high-temperature environments.
ZZ: Metal sealing cover Advantages: High speed, high-temperature resistance, maintenance free, wide range of applications, medium dustproof effect, high speed, very high-speed operation. Disadvantages: Cannot prevent the intrusion of liquid debris.
