Page 4 of Constant Velocity Joints for Industrial Machines by NTN Corporation Japan

outline types and features ¡rotational speed can be transmitted at constant velocity ¡greater torque capacity ¡long service life and high reliability ¡high transmission efficiency table 1 types and features of ntn constant velocity joint ¡low secondary moment ¡smooth and quiet rotation ¡easy handling with long lubrication life requiring infrequent re-rubrication variety type cvj number max allowable operating angle1 features fixed type disc type bj75d­bj300d 14° to 18° capable of high speed operation no need for intermediate slide spline shaft cup type bj75c­bj225c 25° greater operating angle excellent sealing sliding type doj 68f­doj200f flange type doj225f­doj625f short shaft series long shaft series 20° 8° to 10° expansion within joint is possible low sliding friction expansion friction coupling type bc68­bc200 2 5° no alignment is needed easy installation 1 the maximum allowable operating angle is limited by a boot as well as the rpm and operating conditions of the cvj assembly 2 upon request from the user larger sizes can be designed and manufactured contact ntn engineering remarks the ntn constant velocity joint range includes in addition to those listed here the bell type cvjs used for drive shafts of automobiles passenger cars trucks construction vehicles and special vehicles and the ntn proprietary tri-ball joint that features unique structure and functions 2

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