¢º Products : LM Guide >THK LM Guide >THK Ball Screw >Type BNK2520-3.6
Ball Screw specifications
Lead (mm)
20
BCD (mm)
26
Thread minor diameter (mm)
21.9
Threading direction/no. of threaded grooves
Right-hand, 2
No. of circuits
2 rows X 1.8 turns
Clearance symbol
G0
GT
G2
Axial clearance (mm)
0
0.005 Max
0.02 Max
Basic dynamic load rating Ca(kN)
10.5
16.7
Basic static load rating C0a(kN)
19.0
38.0
Preload torque (N·m)
4.9×10-2¡2.2×10-1
-
Spacer ball
1:1
None
Unit : mm
1kN¡Ö102kgf
Ball Screw model No.
Stroke
Screw-shaft length
Screw-shaft longitudinal-axisrunoutD
NutcircumferentialrunoutH
Flangeperpen-dicularityI
ShaftthreadrunoutJ
L1
L2
L3
BNK 2520-3.6G0+751LC5Y
500
610
640
751
0.055
0.015
0.011
0.013
BNK 2520-3.6G2+751LC7Y
0.070
0.030
0.018
0.020
BNK 2520-3.6G0+851LC5Y
600
710
740
851
0.065
BNK 2520-3.6G2+851LC7Y
0.085
BNK 2520-3.6G0+1051LC5Y
800
910
940
1051
BNK 2520-3.6G2+1051LC7Y
0.100
BNK 2520-3.6G0+1251LC5Y
1000
1110
1140
1251
0.110
BNK 2520-3.6G2+1251LC7Y
0.130
BNK 2520-3.6G0+1451LC5Y
1200
1310
1340
1451
BNK 2520-3.6G2+1451LC7Y
BNK 2520-3.6G0+1651LC5Y
1400
1510
1540
1651
0.140
BNK 2520-3.6G2+1651LC7Y
0.170
BNK 2520-3.6G0+1851LC5Y
1600
1710
1740
1851
BNK 2520-3.6G2+1851LC7Y