OEM No/Model: 42555, 1987BE0024, TMB120, TNB108, TNB165
Feature:
Main materials: Cr20 steel
Cold extrusion process to both sleeve and pinion
CNC lathe turning keep the precision
Nitrocarburizing, hardness 45-50 HRC, carburizing thickness 0.8mm
Strong enough rollers and flat spring and perfect inner design for long life using and avoid of slip.
Grease feature: -40 to 180 temperature resistance
Durability test: not less than 30,000 cycles.
contact: george(at)ben-zone.com
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