Number of Thread/Thread Direction 1/Right
BCD 20.6
Lead 5
Ball Dia. 3.175
Effective Turns(Circuit×Row) 2.5 × 2
Lead Angle 4.42
Dynamic Rate Load Ca(kgf) 1510
Static Rate Load Co(kgf) 3460
Axial Play 0
Preloading Torque(kgf-cm) 0.28~1.32

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
1R20-05B2-1FSWC-225-335-0.018 225 250 335 10 5 0.023 0.018 cad button
1R20-05B2-1FSWC-275-385-0.018 275 300 385 10 5 0.023 0.018 cad button
1R20-05B2-1FSWC-375-485-0.018 375 400 485 15 5 0.025 0.018 cad button
1R20-05B2-1FSWC-475-585-0.018 475 500 585 15 5 0.027 0.018 cad button
1R20-05B2-1FSWC-575-685-0.018 575 600 685 15 5 0.030 0.018
1R20-05B2-1FSWC-775-885-0.018 775 800 885 10 5 0.035 0.018 cad button