Number of Thread/Thread Direction 1/Right
BCD 20.7
Lead 10
Ball Dia. 3.969
Effective Turns(Circuit×Row) 2.5 × 1
Lead Angle 8.74
Dynamic Rate Load Ca(kgf) 1100
Static Rate Load Co(kgf) 2120
Axial Play 0 0.005or less
Preloading Torque(kgf-cm) 0.2~0.1.2 0.3or less
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
1R20-10B1-1FSWC-289-399-0.018 289 314 399 10 5 0.023 0.018 cad button
1R20-10B1-1FSWC-389-499-0.018 389 414 499 10 5 0.025 0.018 cad button
1R20-10B1-1FSWC-489-599-0.018 489 514 599 15 5 0.027 0.018 cad button
1R20-10B1-1FSWC-589-699-0.018 589 614 699 15 5 0.030 0.018 cad button
1R20-10B1-1FSWC-689-799-0.018 689 714 799 15 5 0.035 0.018 cad button
1R20-10B1-1FSWC-789-899-0.018 789 814 899 15 5 0.035 0.018 cad button
1R20-10B1-1FSWC-889-999-0.018 889 914 999 15 5 0.040 0.018 cad button
1R20-10B1-1FSWC-989-1099-0.018 989 1014 1099 15 5 0.040 0.018 cad button
1R20-10B1-1FSWC-1089-1199-0.018 1089 1114 1199 15 5 0.046 0.018 cad button
1R20-10B1-1FSWC-1189-1299-0.018 1189 1214 1299 15 5 0.046 0.018 cad button
1R20-10B1-1FSWC-1289-1399-0.018 1289 1314 1399 15 5 0.046 0.018 cad button