Page 22 of Constant Velocity Joints for Industrial Machines by NTN Corporation Japan

outline 4 large size series doj225­doj625 correlation between cvj angle and allowable expansion when an angle occurs on a cvj the balls will move and the allowable expansion will decrease the value of 2a in fig 16 is the total expansion decrease of a pair of joints to determine the expansion for intended application subtract 2a see fig 16 from the allowable expansion at 0° s mm z s z 500 400 a allowable offset joint basic number 300 200 100 30 a 1000 3000 5000 z mm center-to-center distance of cvj mm fig 17 allowable offset 2a doj550 doj625 doj500 20 doj450 doj400 doj350 doj300 doj250 10 doj225 9° allowable angle 10° decrease in allowable expansion 8° 7° 6° 0 2° 4° 6° cvj angle 8° 10° 5° 1000 3000 5000 z mm center-to-center distance of cvj fig 16 allowable expansion fig 18 allowable angle remarks the correlation between the center-to-center distance of cvj and allowable offset is given in fig 17 and that between the center-to-center distance of cvj and allowable angle is illustrated in fig 18 20

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