Ball Screw specifications

Lead (mm)

4

BCD (mm)

14.65

Thread minor diameter  (mm)

11.9

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)

4.2

Basic static load rating C0a(kN)

7.6

Preload torque (N·m)

9.8×10-3¡­6.9×10-2

-

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 1404-3RRG0+230LC3Y

100

148

163

230

0.025

0.010

0.008

0.009

BNK 1404-3RRG0+230LC5Y

0.030

0.012

0.010

0.012

BNK 1404-3RRG2+230LC7Y

0.045

0.020

0.014

0.014

BNK 1404-3RRG0+280LC3Y

150

198

213

280

0.025

0.010

0.008

0.009

BNK 1404-3RRG0+280LC5Y

0.030

0.012

0.010

0.012

BNK 1404-3RRG2+280LC7Y

0.045

0.020

0.014

0.014

BNK 1404-3RRG0+330LC3Y

200

248

263

330

0.030

0.010

0.008

0.009

BNK 1404-3RRG0+330LC5Y

0.040

0.012

0.010

0.012

BNK 1404-3RRG2+330LC7Y

0.055

0.020

0.014

0.014

BNK 1404-3RRG0+430LC3Y

300

348

363

430

0.040

0.010

0.008

0.009

BNK 1404-3RRG0+430LC5Y

0.050

0.012

0.010

0.012

BNK 1404-3RRG2+430LC7Y

0.060

0.020

0.014

0.014

BNK 1404-3RRG0+530LC3Y

400

448

463

530

0.045

0.010

0.008

0.009

BNK 1404-3RRG0+530LC5Y

0.055

0.012

0.010

0.012

BNK 1404-3RRG2+530LC7Y

0.075

0.020

0.014

0.014