Number of Thread/Thread Direction 1/Right
BCD 28.6
Lead 5
Ball Dia. 3.175
Effective Turns(Circuit×Row) 2.5 × 2
Lead Angle 3.19
Dynamic Rate Load Ca(kgf) 1720
Static Rate Load Co(kgf) 4940
Axial Play 0
Preloading Torque(kgf-cm) 0.3~1.7

Model No.shaft Screw Spindle (Shaft) Length Accuracy
Grade		 Lead Accuracy 2D-CAD
(DWG)
L1 L2

L3

L4

 Accumulated referemce lead deviation E Lead Deriation in random 300mme300
1R28-05B2-1FSWC-270-445-0.018 270 300 445 10 5 0.023 0.018 cad button
1R28-05B2-1FSWC-370-545-0.018 370 400 545 15 5 0.023 0.018 cad button
1R28-05B2-1FSWC-470-645-0.018 470 500 645 15 5 0.023 0.018 cad button
1R28-05B2-1FSWC-558-733-0.018 558 588 733 15 5 0.023 0.018 cad button
1R28-05B2-1FSWC-758-933-0.018 758 788 933 15 5 0.025 0.018 cad button
1R28-05B2-1FSWC-958-1133-0.018 958 988 1133 15 5 0.025 0.018 cad button
1R28-05B2-1FSWC-1158-1333-0.018 1158 1188 1333 15 5 0.027 0.018 cad button