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To meet the space-saving requirement, this type of Ball Screw has a standardized screw shaft and a ball
screw nut. The ends of the screw shaft are standardized to fit the corresponding support unit.
View specifications and model number coding
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Ball screw specification
Screw shaft diameter (mm)
15
Lead (mm)
10
BCD (mm)
15.75
Thread minor diameter (mm)
12.5
Number of circuits
2×2.8
Axial clearance
0
Basic dynamic load rating Ca (kN)
9
Basic static load rating C0 a (kN)
13.9
Preload torque (N-m)
0.02 to 0.098
Spacer ball
1:1
Rigidity (N/µm)
190
Circulation method
End Cap
Applicable fixed side support unit
EK12 , FK12
Applicable support side support unit
EF12 , FF12
Applicable nut bracket
MC1408
Model No.
Stroke
Screw shaft length
Ball screw specifications
Lead angle accuracy
L1
L2
L3
Runout of the screw shaft axisD
Runout of the nut circumferenceH
Flange perpen-dicularityI
Runout of the thread groove srufaceJ
Representative travel distance error
Fluctuation
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
BNK1510-5.6G0+321LC5Y
150
239
254
321
0.035
0.015
0.011
0.012
±0.023
0.018
BNK1510-5.6G0+371LC5Y
200
289
304
371
0.035
0.015
0.011
0.012
±0.023
0.018
BNK1510-5.6G0+421LC5Y
250
339
354
421
0.035
0.015
0.011
0.012
±0.025
0.02
BNK1510-5.6G0+471LC5Y
300
389
404
471
0.035
0.015
0.011
0.012
±0.025
0.02
BNK1510-5.6G0+521LC5Y
350
439
454
521
0.035
0.015
0.011
0.012
±0.027
0.02
BNK1510-5.6G0+571LC5Y
400
489
504
571
0.035
0.015
0.011
0.012
±0.027
0.02
BNK1510-5.6G0+621LC5Y
450
539
554
621
0.035
0.015
0.011
0.012
±0.03
0.023
BNK1510-5.6G0+671LC5Y
500
589
604
671
0.035
0.015
0.011
0.012
±0.03
0.023
BNK1510-5.6G0+721LC5Y
550
639
654
721
0.035
0.015
0.011
0.012
±0.035
0.025
BNK1510-5.6G0+771LC5Y
600
689
704
771
0.035
0.015
0.011
0.012
±0.035
0.025
BNK1510-5.6G0+871LC5Y
700
789
804
871
0.035
0.015
0.011
0.012
±0.035
0.025
BNK1510-5.6G0+971LC5Y
800
889
904
971
0.035
0.015
0.011
0.012
±0.04
0.027
AFB-LF is the default grease. For more detailed specifications, please download the Product Catalog with the link in the Downloads section on this page.
Ball screw specification
Screw shaft diameter (mm)
15
Lead (mm)
20
BCD (mm)
15.75
Thread minor diameter (mm)
12.5
Number of circuits
2×1.5
Axial clearance
0
Basic dynamic load rating Ca (kN)
5.1
Basic static load rating C0 a (kN)
7.9
Preload torque (N-m)
0.02 to 0.088
Spacer ball
1:1
Rigidity (N/µm)
110
Circulation method
End Cap
Applicable fixed side support unit
EK12 , FK12
Applicable support side support unit
EF12 , FF12
Applicable nut bracket
MC1408
Model No.
Stroke
Screw shaft length
Ball screw specifications
Lead angle accuracy
L1
L2
L3
Runout of the screw shaft axisD
Runout of the nut circumferenceH
Flange perpen-dicularityI
Runout of the thread groove srufaceJ
Representative travel distance error
Fluctuation
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
BNK1520‑3G0+321LC5Y
150
236
254
321
0.035
0.015
0.011
0.012
±0.023
0.018
BNK1520‑3G0+371LC5Y
200
286
304
371
0.035
0.015
0.011
0.012
±0.023
0.018
BNK1520‑3G0+421LC5Y
250
336
354
421
0.04
0.015
0.011
0.012
±0.025
0.02
BNK1520‑3G0+471LC5Y
300
386
404
471
0.04
0.015
0.011
0.012
±0.025
0.02
BNK1520‑3G0+521LC5Y
350
436
454
521
0.05
0.015
0.011
0.012
±0.027
0.02
BNK1520‑3G0+571LC5Y
400
486
504
571
0.05
0.015
0.011
0.012
±0.027
0.02
BNK1520‑3G0+621LC5Y
450
536
554
621
0.05
0.015
0.011
0.012
±0.03
0.023
BNK1520‑3G0+671LC5Y
500
586
604
671
0.065
0.015
0.011
0.012
±0.03
0.023
BNK1520‑3G0+721LC5Y
550
636
654
721
0.065
0.015
0.011
0.012
±0.035
0.025
BNK1520‑3G0+771LC5Y
600
686
704
771
0.065
0.015
0.011
0.012
±0.035
0.025
BNK1520‑3G0+871LC5Y
700
786
804
871
0.085
0.015
0.011
0.012
±0.035
0.025
BNK1520‑3G0+971LC5Y
800
886
904
971
0.085
0.015
0.011
0.012
±0.04
0.027
AFB-LF is the default grease. For more detailed specifications, please download the Product Catalog with the link in the Downloads section on this page.
Ball screw specification
Screw shaft diameter (mm)
16
Lead (mm)
16
BCD (mm)
16.65
Thread minor diameter (mm)
13.7
Number of circuits
2×1.8
Axial clearance
0
Basic dynamic load rating Ca (kN)
4.4
Basic static load rating C0 a (kN)
7.2
Preload torque (N-m)
0.02 to 0.098
Spacer ball
1:1
Rigidity (N/µm)
120
Circulation method
End Cap
Applicable fixed side support unit
EK12 , FK12
Applicable support side support unit
EF12 , FF12
Applicable nut bracket
MC1408
Model No.
Stroke
Screw shaft length
Ball screw specifications
Lead angle accuracy
L1
L2
L3
Runout of the screw shaft axisD
Runout of the nut circumferenceH
Flange perpen-dicularityI
Runout of the thread groove srufaceJ
Representative travel distance error
Fluctuation
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
BNK1616-3.6G0+321LC5Y
150
234
254
321
0.035
0.015
0.011
0.012
±0.023
0.018
BNK1616-3.6G0+371LC5Y
200
284
304
371
0.035
0.015
0.011
0.012
±0.023
0.018
BNK1616-3.6G0+421LC5Y
250
334
354
421
0.04
0.015
0.011
0.012
±0.025
0.02
BNK1616-3.6G0+471LC5Y
300
384
404
471
0.04
0.015
0.011
0.012
±0.025
0.02
BNK1616-3.6G0+521LC5Y
350
434
454
521
0.05
0.015
0.011
0.012
±0.027
0.02
BNK1616-3.6G0+571LC5Y
400
484
504
571
0.05
0.015
0.011
0.012
±0.027
0.02
BNK1616-3.6G0+621LC5Y
450
534
554
621
0.05
0.015
0.011
0.012
±0.03
0.023
BNK1616-3.6G0+671LC5Y
500
584
604
671
0.065
0.015
0.011
0.012
±0.03
0.023
BNK1616-3.6G0+721LC5Y
550
634
654
721
0.065
0.015
0.011
0.012
±0.035
0.025
BNK1616-3.6G0+771LC5Y
600
684
704
771
0.065
0.015
0.011
0.012
±0.035
0.025
BNK1616-3.6G0+871LC5Y
700
784
804
871
0.085
0.015
0.011
0.012
±0.035
0.025
BNK1616-3.6G0+971LC5Y
800
884
904
971
0.085
0.015
0.011
0.012
±0.04
0.027
AFB-LF is the default grease. For more detailed specifications, please download the Product Catalog with the link in the Downloads section on this page.
Ball screw specification
Screw shaft diameter (mm)
20
Lead (mm)
10
BCD (mm)
21
Thread minor diameter (mm)
16.4
Number of circuits
1×2.5
Axial clearance
0
Basic dynamic load rating Ca (kN)
7
Basic static load rating C0 a (kN)
11
Preload torque (N-m)
0.02 to 0.098
Spacer ball
1:1
Rigidity (N/µm)
110
Circulation method
Return Pipe
Applicable fixed side support unit
EK15 , FK15
Applicable support side support unit
EF15 , FF15
Applicable nut bracket
MC2010
Model No.
Stroke
Screw shaft length
Ball screw specifications
Lead angle accuracy
L1
L2
L3
Runout of the screw shaft axisD
Runout of the nut circumferenceH
Flange perpen-dicularityI
Runout of the thread groove srufaceJ
Representative travel distance error
Fluctuation
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
BNK2010-2.5RRG0+499LC5Y
300
389
414
499
0.04
0.015
0.011
0.012
±0.025
0.02
BNK2010-2.5RRG0+599LC5Y
400
489
514
599
0.04
0.015
0.011
0.012
±0.027
0.02
BNK2010-2.5RRG0+699LC5Y
500
589
614
699
0.04
0.015
0.011
0.012
±0.03
0.023
BNK2010-2.5RRG0+799LC5Y
600
689
714
799
0.04
0.015
0.011
0.012
±0.035
0.025
BNK2010-2.5RRG0+899LC5Y
700
789
814
899
0.04
0.015
0.011
0.012
±0.035
0.025
BNK2010-2.5RRG0+999LC5Y
800
889
914
999
0.04
0.015
0.011
0.012
±0.04
0.027
BNK2010-2.5RRG0+1099LC5Y
900
989
1014
1099
0.04
0.015
0.011
0.012
±0.04
0.027
BNK2010-2.5RRG0+1199LC5Y
1000
1089
1114
1199
0.04
0.015
0.011
0.012
±0.046
0.03
BNK2010-2.5RRG0+1299LC5Y
1100
1189
1214
1299
0.04
0.015
0.011
0.012
±0.046
0.03
BNK2020-3.6G0+520LC5Y
300
410
435
520
0.05
0.015
0.011
0.012
±0.027
0.02
BNK2020-3.6G0+620LC5Y
400
510
535
620
0.05
0.015
0.011
0.012
±0.03
0.023
BNK2020-3.6G0+720LC5Y
500
610
635
720
0.05
0.015
0.011
0.012
±0.03
0.023
BNK2020-3.6G0+820LC5Y
600
710
735
820
0.05
0.015
0.011
0.012
±0.035
0.025
BNK2020-3.6G0+920LC5Y
700
810
835
920
0.05
0.015
0.011
0.012
±0.04
0.027
BNK2020-3.6G0+1020LC5Y
800
910
935
1020
0.05
0.015
0.011
0.012
±0.04
0.027
BNK2020-3.6G0+1120LC5Y
900
1010
1035
1120
0.05
0.015
0.011
0.012
±0.046
0.03
BNK2020-3.6G0+1220LC5Y
1000
1110
1135
1220
0.05
0.015
0.011
0.012
±0.046
0.03
BNK2020-3.6G0+1320LC5Y
1100
1210
1235
1320
0.05
0.015
0.011
0.012
±0.046
0.03
AFB-LF is the default grease. For more detailed specifications, please download the Product Catalog with the link in the Downloads section on this page.
Ball screw specification
Screw shaft diameter (mm)
25
Lead (mm)
20
BCD (mm)
26
Thread minor diameter (mm)
17.5
Number of circuits
2×1.8
Axial clearance
0
Basic dynamic load rating Ca (kN)
10.5
Basic static load rating C0 a (kN)
19
Preload torque (N-m)
0.049 to 0.22
Spacer ball
1:1
Rigidity (N/µm)
190
Circulation method
End Cap
Applicable fixed side support unit
EK20 , FK20
Applicable support side support unit
EF20 , FF20
Model No.
Stroke
Screw shaft length
Ball screw specifications
Lead angle accuracy
L1
L2
L3
Runout of the screw shaft axisD
Runout of the nut circumferenceH
Flange perpen-dicularityI
Runout of the thread groove srufaceJ
Representative travel distance error
Fluctuation
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
BNK2520-3.6G0+751LC5Y
500
610
640
751
0.055
0.015
0.011
0.013
±0.03
0.023
BNK2520-3.6G0+851LC5Y
600
710
740
851
0.055
0.015
0.011
0.013
±0.035
0.025
BNK2520-3.6G0+1051LC5Y
800
910
940
1051
0.055
0.015
0.011
0.013
±0.04
0.027
BNK2520-3.6G0+1251LC5Y
1000
1110
1140
1251
0.055
0.015
0.011
0.013
±0.046
0.03
BNK2520-3.6G0+1451LC5Y
1200
1310
1340
1451
0.055
0.015
0.011
0.013
±0.054
0.035
BNK2520-3.6G0+1651LC5Y
1400
1510
1540
1651
0.055
0.015
0.011
0.013
±0.054
0.035
BNK2520-3.6G0+1851LC5Y
1600
1710
1740
1851
0.055
0.015
0.011
0.013
±0.065
0.04
AFB-LF is the default grease. For more detailed specifications, please download the Product Catalog with the link in the Downloads section on this page.
Model
Screw shaft outer diameter
Lead(in mm)
No. of circuits*1
Seals
Clearance
Shaft length(in mm)*1
Accuracy
Standard stock symbol
BNK
15
10
-
5.6
G0
+
321L
C5
Y
BNK
15
10
Various
No symbol : No seal
G0 : 0
Length in millimeters then "L"
C5
Y
16
16
RR : Labyrinth seal
20
20
25
Note 1: See the Specifications tab to see standard sizes available.