The 636-2RSCM KOYO is a miniature double rubber sealed deep groove ball bearing with CM low-radial-clearance specification, independently optimized by KOYO for compact high-speed miniature transmission. Dual 2RS contact seals block contaminants effectively, while CM customized clearance offsets thermal expansion under high rotating speed, making it ideal for small-size precision drive assemblies.
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The 636-2RSCM KOYO is a miniature double rubber sealed deep groove ball bearing with CM low-radial-clearance specification, independently optimized by KOYO for compact high-speed miniature transmission. Dual 2RS contact seals block contaminants effectively, while CM customized clearance offsets thermal expansion under high rotating speed, making it ideal for small-size precision drive assemblies.
Per ISO 681 standard specification: bore 6 mm, outer diameter 22 mm, width 7 mm, standard chamfer 0.6×45°, tolerance class P6, internal clearance CM. Compact dimension layout fits confined installation space for miniature mechanical parts.
Inner rings, outer rings and steel balls adopt refined 100Cr6 bearing steel, quenched hardness HRC 60–62 with superior wear resistance and anti-fatigue property. Stamped SPCC steel cage ensures uniform ball separation and stable low-noise operation; double-lip NBR 2RS rubber seals feature excellent grease retention and dustproof capability against moist and dusty surroundings.
Core manufacturing covers precision cold forging, CNC finish turning, controlled atmosphere quenching-tempering, raceway precision grinding and superfinishing. Optimized forging streamlines metal fiber distribution; low-temperature tempering eliminates inner residual stress; ultra-precision superfinishing reduces raceway roughness to minimize friction loss and running noise.
Calculated under ISO 281 international standard, its L10 rated service life reaches 52,000 hours under standard light load, rated rotating speed and proper lubrication. Actual service life is dominated by operating speed, actual applied load, mounting concentricity, lubrication grade and environmental cleanliness.
This KOYO miniature bearing is widely used in small household motors, precision office equipment, miniature textile spindles, small fan motors and electronic automation components. Compact structure, sealed construction and CM clearance design adapt high-speed continuous running inside narrow installation spaces of micro machinery.
Routine relubrication every 200 working cycles with low-viscosity NLGI 2 lithium grease, single filling dosage 0.1~0.15 g. Wipe fitting positions with lint-free cloth to clear debris; routinely check running noise and seal integrity, replace seals once grease leakage occurs.
Clean mating shaft and housing before assembly, verify H7/h6 dimensional tolerance; adopt gentle press fitting and prohibit hammer impact, control coaxiality error below 0.02 mm/m with 5–8 N·m tightening torque. Complete no-load trial rotation after installation; wear finger cots to avoid scratch during assembly.
| BRAND | FONKIN/SKF/FAG/INA/NSK/NTN/TIMKEN/SNR/IKO/KOYO/ASAHI/FYH/THK/HIWIN/PMI |
| BEARINGS NO. | 6362RSCM KOYO |
| TYPE | DEEP GROOVE BALL BEARING |
| Inner(d)mm | 6 |
| Outer(D)mm | 22 |
| Width(B)mm | 7 |
| WEIGHT/KG | 0.0136 |
| EAN CODE |
+86-510-6831-3099
No.105, Huixin Road,Yuqi Industrial Park, Huishan District, hunqi Road, Yuqi Town, Wuxi, Jiangsu Province, P.R.CHINA
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