Ball Screw specifications

Lead (mm)

2

BCD (mm)

12.3

Thread minor diameter  (mm)

11.0

Threading direction/
no. of threaded grooves

Right-hand, 1

No. of circuits

3 rows X 1 turn

Clearance symbol

G0

GT

G2

Axial clearance (mm)

0

0.005 Max

0.02 Max

Basic dynamic load rating Ca(kN)

1.7

Basic static load rating C0a(kN)

3.6

Preload torque (N·m)

3.9×10-3¡­3.4×10-2

-

Spacer ball

None

 

 

 

Unit : mm

1kN¡Ö102kgf

 

Ball Screw model No.

Stroke

Screw-shaft length

Screw-shaft
longitudinal-axis
runout

D

Nut
circumferential
runout

H

Flange
perpen-
dicularity

I

Shaft
thread
runout

J

L1

L2

L3

BNK 1202-3RRG0 + 154LC3Y

50

85

99

154

0.020

0.010

0.008

0.007

BNK 1202-3RRG0 + 154LC5Y

0.035

0.012

0.010

0.011

BNK 1202-3RRG2 + 154LC7Y

0.040

0.020

0.014

0.014

BNK 1202-3RRG0 + 204LC3Y

100

135

149

204

0.030

0.010

0.008

0.007

BNK 1202-3RRG0 + 204LC5Y

0.040

0.012

0.010

0.011

BNK 1202-3RRG2 + 204LC7Y

0.055

0.020

0.014

0.014

BNK 1202-3RRG0 + 254LC3Y

150

185

199

254

0.030

0.010

0.008

0.007

BNK 1202-3RRG0 + 254LC5Y

0.040

0.012

0.010

0.011

BNK 1202-3RRG2 + 254LC7Y

0.055

0.020

0.014

0.014

BNK 1202-3RRG0 + 304LC3Y

200

235

249

304

0.040

0.010

0.008

0.007

BNK 1202-3RRG0 + 304LC5Y

0.050

0.012

0.010

0.011

BNK 1202-3RRG2 + 304LC7Y

0.055

0.020

0.014

0.014

BNK 1202-3RRG0 + 354LC3Y

250

285

299

354

0.040

0.010

0.008

0.007

BNK 1202-3RRG0 + 354LC5Y

0.050

0.012

0.010

0.011

BNK 1202-3RRG2 + 354LC7Y

0.065

0.020

0.014

0.014