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BNK Set

Finished Shaft Ends
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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.
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Shaft O.D. (mm)
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Stroke Range (mm)
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Stroke (mm)
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Accuracy
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*Please contact THK if you need more than available quantity or out of stock items
Attributes Part Number Unit Price Quantity Days to Ship Item Total
Stroke (mm):20
Shaft O.D. (mm):4
Lead (mm):1
 BNK0401-3G0+77LC3Y – Days to Ship:2 - 3 weeks*
BNK0401-3G0+77LC5Y – Out of stock ? Contact Us
BNK0401-3G0+97LC3Y – Out of stock ? Contact Us
Stroke (mm):40
Shaft O.D. (mm):4
Lead (mm):1
 BNK0401-3G0+97LC5Y – Days to Ship:2 - 3 weeks*
Stroke (mm):70
Shaft O.D. (mm):4
Lead (mm):1
 BNK0401-3G0+127LC3Y – Days to Ship:2 - 3 weeks*
Stroke (mm):70
Shaft O.D. (mm):4
Lead (mm):1
 BNK0401-3G0+127LC5Y – Days to Ship:2 - 3 weeks*
Stroke (mm):20
Shaft O.D. (mm):5
Lead (mm):1
 BNK0501-3G0+77LC3Y – Days to Ship:2 - 3 weeks*
Stroke (mm):70
Shaft O.D. (mm):5
Lead (mm):1
 BNK0501-3G0+127LC3Y – Days to Ship:2 - 3 weeks*
Stroke (mm):40
Shaft O.D. (mm):6
Lead (mm):1
 BNK0601-3G0+100LC3Y – Days to Ship:1 - 3 days
Stroke (mm):40
Shaft O.D. (mm):6
Lead (mm):1
 BNK0601-3G0+100LC5Y – Days to Ship:2 - 3 weeks*
BNK0601-3G0+130LC3Y – Out of stock ? Contact Us
BNK0601-3G0+130LC5Y – Out of stock ? Contact Us
Stroke (mm):100
Shaft O.D. (mm):6
Lead (mm):1
 BNK0601-3G0+160LC3Y – Days to Ship:2 - 3 weeks*
BNK0601-3G0+160LC5Y – Out of stock ? Contact Us
BNK0801-3G0+115LC3Y – Out of stock ? Contact Us
BNK0801-3G0+115LC5Y – Out of stock ? Contact Us
BNK0801-3G0+145LC3Y – Out of stock ? Contact Us
BNK0801-3G0+145LC5Y – Out of stock ? Contact Us
BNK0801-3G0+175LC3Y – Out of stock ? Contact Us
Stroke (mm):100
Shaft O.D. (mm):8
Lead (mm):1
 BNK0801-3G0+175LC5Y – Days to Ship:2 - 3 weeks*
*Please contact THK if you need more than available quantity or out of stock items
Subtotal: $0.00
    • Ball screw specification
      Screw shaft diameter (mm) 4
      Lead (mm) 1
      BCD (mm) 4.15
      Thread minor diameter (mm) 3.4
      Number of circuits 3×1
      Axial clearance 0
      Basic dynamic load rating Ca (kN) 0.29
      Basic dynamic load rating C0a (kN) 0.42
      Preload torque (N-m) to 0.0098
      Spacer ball None
      Rigidity (N/µm) 35
      Circulation method Deflector
      Applicable fixed side support unit EK4, FK4
      Model No. Stroke Screw shaft length Ball screw specifications Lead angle accuracy
      L1 L2 L3 Runout of the screw shaft axis
      D      		 Runout of the nut circumference
      H      		 Flange perpen-dicularity
      I      		 Runout of the thread groove sruface
      J      		 Representative travel distance error Fluctuation
      mm mm mm mm mm mm mm mm mm mm
      BNK0401‑3G0+77LC3Y 20 45 54 77 0.015 0.009 0.008 0.008 ±0.008 0.008
      BNK0401‑3G0+77LC5Y 20 46 54 77 0.025 0.012 0.01 0.01 ±0.018 0.018
      BNK0401‑3G0+97LC3Y 40 65 74 97 0.02 0.009 0.008 0.008 ±0.008 0.008
      BNK0401‑3G0+97LC5Y 40 66 74 97 0.025 0.012 0.01 0.01 ±0.018 0.018
      BNK0401‑3G0+127LC3Y 70 95 104 127 0.025 0.009 0.008 0.008 ±0.008 0.008
      BNK0401‑3G0+127LC5Y 70 95 104 127 0.035 0.012 0.01 0.01 ±0.018 0.018
      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) 5
      Lead (mm) 1
      BCD (mm) 5.15
      Thread minor diameter (mm) 4.4
      Number of circuits 3×1
      Axial clearance 0
      Basic dynamic load rating Ca (kN) 0.32
      Basic dynamic load rating C0a (kN) 0.55
      Preload torque (N-m) to 0.0098
      Spacer ball None
      Rigidity (N/µm) 47
      Circulation method Deflector
      Applicable fixed side support unit EK4, FK4
      Model No. Stroke Screw shaft length Ball screw specifications Lead angle accuracy
      L1 L2 L3 Runout of the screw shaft axis
      D      		 Runout of the nut circumference
      H      		 Flange perpen-dicularity
      I      		 Runout of the thread groove sruface
      J      		 Representative travel distance error Fluctuation
      mm mm mm mm mm mm mm mm mm mm
      BNK0501‑3G0+77LC3Y 20 45 54 77 0.015 0.009 0.008 0.008 ±0.008 0.008
      BNK0501‑3G0+127LC3Y 70 95 104 127 0.025 0.009 0.008 0.008 ±0.008 0.008
      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) 6
      Lead (mm) 1
      BCD (mm) 6.2
      Thread minor diameter (mm) 5.3
      Number of circuits 3×1
      Axial clearance 0
      Basic dynamic load rating Ca (kN) 0.54
      Basic dynamic load rating C0a (kN) 0.94
      Preload torque (N-m) to 0.013
      Spacer ball None
      Rigidity (N/µm) 60
      Circulation method Deflector
      Applicable fixed side support unit EK5, FK5
      Model No. Stroke Screw shaft length Ball screw specifications Lead angle accuracy
      L1 L2 L3 Runout of the screw shaft axis
      D      		 Runout of the nut circumference
      H      		 Flange perpen-dicularity
      I      		 Runout of the thread groove sruface
      J      		 Representative travel distance error Fluctuation
      mm mm mm mm mm mm mm mm mm mm
      BNK0601‑3G0+100LC3Y 40 65 75 100 0.015 0.009 0.008 0.008 ±0.008 0.008
      BNK0601‑3G0+100LC5Y 40 65 75 100 0.025 0.012 0.01 0.01 ±0.018 0.018
      BNK0601‑3G0+130LC3Y 70 95 105 130 0.02 0.009 0.008 0.008 ±0.008 0.008
      BNK0601‑3G0+130LC5Y 70 95 105 130 0.035 0.012 0.01 0.01 ±0.018 0.018
      BNK0601‑3G0+160LC3Y 100 125 135 160 0.025 0.009 0.008 0.008 ±0.01 0.008
      BNK0601‑3G0+160LC5Y 100 125 135 160 0.035 0.012 0.01 0.01 ±0.02 0.018
      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) 8
      Lead (mm) 1
      BCD (mm) 8.2
      Thread minor diameter (mm) 7.3
      Number of circuits 3×1
      Axial clearance 0
      Basic dynamic load rating Ca (kN) 0.64
      Basic dynamic load rating C0a (kN) 1.4
      Preload torque (N-m) to 0.018
      Spacer ball None
      Rigidity (N/µm) 80
      Circulation method Deflector
      Applicable fixed side support unit EK6, FK6
      Applicable support side support unit EF6, FF6
      Model No. Stroke Screw shaft length Ball screw specifications Lead angle accuracy
      L1 L2 L3 Runout of the screw shaft axis
      D      		 Runout of the nut circumference
      H      		 Flange perpen-dicularity
      I      		 Runout of the thread groove sruface
      J      		 Representative travel distance error Fluctuation
      mm mm mm mm mm mm mm mm mm mm
      BNK0801‑3G0+115LC3Y 40 66 76 115 0.025 0.009 0.008 0.008 ±0.008 0.008
      BNK0801‑3G0+115LC5Y 40 66 76 115 0.025 0.012 0.01 0.01 ±0.018 0.018
      BNK0801‑3G0+145LC3Y 70 96 106 145 0.03 0.009 0.008 0.008 ±0.008 0.008
      BNK0801‑3G0+145LC5Y 70 96 106 145 0.035 0.012 0.01 0.01 ±0.018 0.018
      BNK0801‑3G0+175LC3Y 100 126 136 175 0.03 0.009 0.008 0.008 ±0.01 0.008
      BNK0801‑3G0+175LC5Y 100 126 136 175 0.035 0.012 0.01 0.01 ±0.02 0.018
      BNK0801‑3G0+225LC3Y 150 176 186 225 0.035 0.009 0.008 0.008 ±0.01 0.008
      BNK0801‑3G0+225LC5Y 150 176 186 225 0.05 0.012 0.01 0.01 ±0.02 0.018
      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) 8
      Lead (mm) 2
      BCD (mm) 8.3
      Thread minor diameter (mm) 7
      Number of circuits 3×1
      Axial clearance 0
      Basic dynamic load rating Ca (kN) 1.4
      Basic dynamic load rating C0a (kN) 2.3
      Preload torque (N-m) to 0.02
      Spacer ball None
      Rigidity (N/µm) 100
      Circulation method Deflector
      Applicable fixed side support unit EK6, FK6
      Applicable support side support unit EF6, FF6
      Model No. Stroke Screw shaft length Ball screw specifications Lead angle accuracy
      L1 L2 L3 Runout of the screw shaft axis
      D      		 Runout of the nut circumference
      H      		 Flange perpen-dicularity
      I      		 Runout of the thread groove sruface
      J      		 Representative travel distance error Fluctuation
      mm mm mm mm mm mm mm mm mm mm
      BNK0802‑3RRG0+125LC3Y 40 75 86 125 0.025 0.009 0.008 0.008 ±0.008 0.008
      BNK0802‑3RRG0+125LC5Y 40 75 86 125 0.025 0.012 0.01 0.01 ±0.018 0.018
      BNK0802‑3RRG0+155LC3Y 70 105 116 155 0.03 0.009 0.008 0.008 ±0.01 0.008
      BNK0802‑3RRG0+155LC5Y 70 105 116 155 0.035 0.012 0.01 0.01 ±0.02 0.018
      BNK0802‑3RRG0+185LC3Y 100 135 146 185 0.03 0.009 0.008 0.008 ±0.01 0.008
      BNK0802‑3RRG0+185LC5Y 100 135 146 185 0.035 0.012 0.01 0.01 ±0.02 0.018
      BNK0802‑3RRG0+235LC3Y 150 185 196 235 0.035 0.009 0.008 0.008 ±0.01 0.008
      BNK0802‑3RRG0+235LC5Y 150 185 196 235 0.05 0.012 0.01 0.01 ±0.02 0.018
      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) 10
      Lead (mm) 2
      BCD (mm) 10.3
      Thread minor diameter (mm) 9
      Number of circuits 3×1
      Axial clearance 0
      Basic dynamic load rating Ca (kN) 1.5
      Basic dynamic load rating C0a (kN) 2.9
      Preload torque (N-m) to 0.025
      Spacer ball None
      Rigidity (N/µm) 100
      Circulation method Deflector
      Applicable fixed side support unit EK8, FK8
      Applicable support side support unit EF8, FF6
      Model No. Stroke Screw shaft length Ball screw specifications Lead angle accuracy
      L1 L2 L3 Runout of the screw shaft axis
      D      		 Runout of the nut circumference
      H      		 Flange perpen-dicularity
      I      		 Runout of the thread groove sruface
      J      		 Representative travel distance error Fluctuation
      mm mm mm mm mm mm mm mm mm mm
      BNK1002‑3RRG0+143LC3Y 50 85 97 143 0.02 0.009 0.008 0.007 ±0.008 0.008
      BNK1002‑3RRG0+143LC5Y 50 85 97 143 0.035 0.012 0.01 0.011 ±0.018 0.018
      BNK1002‑3RRG0+193LC3Y 100 135 147 193 0.03 0.009 0.008 0.007 ±0.01 0.008
      BNK1002‑3RRG0+193LC5Y 100 135 147 193 0.035 0.012 0.01 0.011 ±0.02 0.018
      BNK1002‑3RRG0+243LC3Y 150 185 197 243 0.03 0.009 0.008 0.007 ±0.01 0.008
      BNK1002‑3RRG0+243LC5Y 150 185 197 243 0.04 0.012 0.01 0.011 ±0.02 0.018
      BNK1002‑3RRG0+293LC3Y 200 235 247 293 0.03 0.009 0.008 0.007 ±0.012 0.008
      BNK1002‑3RRG0+293LC5Y 200 235 247 293 0.04 0.012 0.01 0.011 ±0.023 0.018
      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) 10
      Lead (mm) 4
      BCD (mm) 10.5
      Thread minor diameter (mm) 7.8
      Number of circuits 1×2.5
      Axial clearance 0
      Basic dynamic load rating Ca (kN) 2.1
      Basic dynamic load rating C0a (kN) 2.7
      Preload torque (N-m) 0.0098 to 0.042
      Spacer ball 1:1
      Rigidity (N/µm) 50
      Circulation method Return Pipe
      Applicable fixed side support unit EK10, FK10
      Applicable support side support unit EF10, FF10
      Applicable nut bracket MC1004
      Model No. Stroke Screw shaft length Ball screw specifications Lead angle accuracy
      L1 L2 L3 Runout of the screw shaft axis
      D      		 Runout of the nut circumference
      H      		 Flange perpen-dicularity
      I      		 Runout of the thread groove sruface
      J      		 Representative travel distance error Fluctuation
      mm mm mm mm mm mm mm mm mm mm
      BNK1004‑2.5RRG0+180LC3Y 50 110 125 180 0.02 0.009 0.008 0.008 ±0.01 0.008
      BNK1004‑2.5RRG0+230LC3Y 100 160 175 230 0.03 0.009 0.008 0.008 ±0.01 0.008
      BNK1004‑2.5RRG0+280LC3Y 150 210 225 280 0.03 0.009 0.008 0.008 ±0.012 0.008
      BNK1004‑2.5RRG0+330LC3Y 200 260 275 330 0.04 0.009 0.008 0.008 ±0.012 0.008
      BNK1004‑2.5RRG0+380LC3Y 250 310 325 380 0.04 0.009 0.008 0.008 ±0.012 0.008
      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) 10
      Lead (mm) 10
      BCD (mm) 10.5
      Thread minor diameter (mm) 7.8
      Number of circuits 1×1.5
      Axial clearance 0
      Basic dynamic load rating Ca (kN) 1.3
      Basic dynamic load rating C0a (kN) 1.6
      Preload torque (N-m) 0.0098 to 0.049
      Spacer ball 1.1
      Rigidity (N/µm) 70
      Circulation method Return Pipe
      Applicable fixed side support unit EK10, FK10
      Applicable support side support unit EF10, FF10
      Applicable nut bracket MC1004
      Model No. Stroke Screw shaft length Ball screw specifications Lead angle accuracy
      L1 L2 L3 Runout of the screw shaft axis
      D      		 Runout of the nut circumference
      H      		 Flange perpen-dicularity
      I      		 Runout of the thread groove sruface
      J      		 Representative travel distance error Fluctuation
      mm mm mm mm mm mm mm mm mm mm
      BNK1010‑1.5RRG0+240LC5Y 100 167 185 240 0.04 0.012 0.01 0.011 ±0.02 0.018
      BNK1010‑1.5RRG0+290LC5Y 150 217 235 290 0.04 0.012 0.01 0.011 ±0.023 0.018
      BNK1010‑1.5RRG0+340LC5Y 200 267 285 340 0.05 0.012 0.01 0.011 ±0.023 0.018
      BNK1010‑1.5RRG0+390LC5Y 250 317 335 390 0.05 0.012 0.01 0.011 ±0.025 0.02
      BNK1010‑1.5RRG0+440LC5Y 300 367 385 440 0.065 0.012 0.01 0.011 ±0.025 0.02
      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) 12
      Lead (mm) 2
      BCD (mm) 12.3
      Thread minor diameter (mm) 11
      Number of circuits 3×1
      Axial clearance 0
      Basic dynamic load rating Ca (kN) 1.7
      Basic dynamic load rating C0a (kN) 3.6
      Preload torque (N-m) 0.0040 to 0.034
      Spacer ball None
      Rigidity (N/µm) 120
      Circulation method Return Pipe
      Applicable fixed side support unit EK10, FK10
      Applicable support side support unit EF10, FF10
      Model No. Stroke Screw shaft length Ball screw specifications Lead angle accuracy
      L1 L2 L3 Runout of the screw shaft axis
      D      		 Runout of the nut circumference
      H      		 Flange perpen-dicularity
      I      		 Runout of the thread groove sruface
      J      		 Representative travel distance error Fluctuation
      mm mm mm mm mm mm mm mm mm mm
      BNK1202‑3RRG0+154LC3Y 50 85 99 154 0.02 0.01 0.008 0.007 ±0.008 0.008
      BNK1202‑3RRG0+154LC5Y 50 85 99 154 0.035 0.012 0.01 0.011 ±0.018 0.018
      BNK1202‑3RRG0+204LC3Y 100 135 149 204 0.03 0.01 0.008 0.007 ±0.01 0.008
      BNK1202‑3RRG0+204LC5Y 100 135 149 204 0.04 0.012 0.01 0.011 ±0.02 0.018
      BNK1202‑3RRG0+254LC3Y 150 185 199 254 0.03 0.01 0.008 0.007 ±0.01 0.008
      BNK1202‑3RRG0+254LC5Y 150 185 199 254 0.04 0.012 0.01 0.011 ±0.02 0.018
      BNK1202‑3RRG0+304LC3Y 200 235 249 304 0.04 0.01 0.008 0.007 ±0.012 0.008
      BNK1202‑3RRG0+304LC5Y 200 235 249 304 0.05 0.012 0.01 0.011 ±0.023 0.018
      BNK1202‑3RRG0+354LC3Y 250 285 299 354 0.04 0.01 0.008 0.007 ±0.012 0.008
      BNK1202‑3RRG0+354LC5Y 250 285 299 354 0.05 0.012 0.01 0.011 ±0.023 0.018
      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) 12
      Lead (mm) 5
      BCD (mm) 13.3
      Thread minor diameter (mm) 9.6
      Number of circuits 1×2.5
      Axial clearance 0
      Basic dynamic load rating Ca (kN) 2.3
      Basic dynamic load rating C0a (kN) 3.7
      Preload torque (N-m) 0.0040 to 0.034
      Spacer ball None
      Rigidity (N/µm) 60
      Circulation method Return Pipe
      Applicable fixed side support unit EK10, FK10
      Applicable support side support unit EF10, FF10
      Applicable nut bracket MC1205
      Model No. Stroke Screw shaft length Ball screw specifications Lead angle accuracy
      L1 L2 L3 Runout of the screw shaft axis
      D      		 Runout of the nut circumference
      H      		 Flange perpen-dicularity
      I      		 Runout of the thread groove sruface
      J      		 Representative travel distance error Fluctuation
      mm mm mm mm mm mm mm mm mm mm
      BNK1205‑2.5RRG0+180LC3Y 50 110 125 180 0.02 0.009 0.008 0.008 ±0.01 0.008
      BNK1205‑2.5RRG0+180LC5Y 50 110 125 180 0.035 0.012 0.01 0.011 ±0.02 0.018
      BNK1205‑2.5RRG0+230LC3Y 100 160 175 230 0.03 0.009 0.008 0.008 ±0.01 0.008
      BNK1205‑2.5RRG0+280LC3Y 150 210 225 280 0.03 0.009 0.008 0.008 ±0.012 0.008
      BNK1205‑2.5RRG0+280LC5Y 150 210 225 280 0.04 0.012 0.01 0.011 ±0.023 0.018
      BNK1205‑2.5RRG0+330LC3Y 200 260 275 330 0.04 0.009 0.008 0.008 ±0.012 0.008
      BNK1205‑2.5RRG0+330LC5Y 200 260 275 330 0.05 0.012 0.01 0.011 ±0.023 0.018
      BNK1205‑2.5RRG0+380LC3Y 250 310 325 380 0.04 0.009 0.008 0.008 ±0.012 0.008
      BNK1205‑2.5RRG0+380LC5Y 250 310 325 380 0.05 0.012 0.01 0.011 ±0.023 0.018
      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) 14
      Lead (mm) 2
      BCD (mm) 14.3
      Thread minor diameter (mm) 13
      Number of circuits 3×1
      Axial clearance 0
      Basic dynamic load rating Ca (kN) 1.8
      Basic dynamic load rating C0a (kN) 4.3
      Preload torque (N-m) 0.0049 to 0.049
      Spacer ball None
      Rigidity (N/µm) 140
      Circulation method Deflector
      Applicable fixed side support unit EK12, FK12
      Applicable support side support unit EF12, FF12
      Model No. Stroke Screw shaft length Ball screw specifications Lead angle accuracy
      L1 L2 L3 Runout of the screw shaft axis
      D      		 Runout of the nut circumference
      H      		 Flange perpen-dicularity
      I      		 Runout of the thread groove sruface
      J      		 Representative travel distance error Fluctuation
      mm mm mm mm mm mm mm mm mm mm
      BNK1402‑3RRG0+166LC3Y 50 85 99 166 0.02 0.01 0.008 0.009 ±0.008 0.008
      BNK1402‑3RRG0+166LC5Y 50 85 99 166 0.025 0.012 0.01 0.012 ±0.018 0.018
      BNK1402‑3RRG0+216LC3Y 100 135 149 216 0.025 0.01 0.008 0.009 ±0.01 0.008
      BNK1402‑3RRG0+216LC5Y 100 135 149 216 0.03 0.012 0.01 0.012 ±0.02 0.018
      BNK1402‑3RRG0+266LC3Y 150 185 199 266 0.025 0.01 0.008 0.009 ±0.01 0.008
      BNK1402‑3RRG0+266LC5Y 150 185 199 266 0.03 0.012 0.01 0.012 ±0.02 0.018
      BNK1402‑3RRG0+316LC3Y 200 235 249 316 0.03 0.01 0.008 0.009 ±0.012 0.008
      BNK1402‑3RRG0+316LC5Y 200 235 249 316 0.04 0.012 0.01 0.012 ±0.023 0.018
      BNK1402‑3RRG0+416LC3Y 300 335 349 416 0.04 0.01 0.008 0.009 ±0.013 0.01
      BNK1402‑3RRG0+416LC5Y 300 335 349 416 0.05 0.012 0.01 0.012 ±0.025 0.02
      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) 14
      Lead (mm) 4
      BCD (mm) 14.65
      Thread minor diameter (mm) 12.2
      Number of circuits 3×1
      Axial clearance 0
      Basic dynamic load rating Ca (kN) 4.2
      Basic dynamic load rating C0a (kN) 7.6
      Preload torque (N-m) 0.0098 to 0.069
      Spacer ball None
      Rigidity (N/µm) 190
      Circulation method Deflector
      Applicable fixed side support unit EK12, FK12
      Applicable support side support unit EF12, FF12
      Model No. Stroke Screw shaft length Ball screw specifications Lead angle accuracy
      L1 L2 L3 Runout of the screw shaft axis
      D      		 Runout of the nut circumference
      H      		 Flange perpen-dicularity
      I      		 Runout of the thread groove sruface
      J      		 Representative travel distance error Fluctuation
      mm mm mm mm mm mm mm mm mm mm
      BNK1404‑3RRG0+230LC3Y 100 148 163 230 0.025 0.01 0.008 0.009 ±0.01 0.008
      BNK1404‑3RRG0+230LC5Y 100 148 163 230 0.03 0.012 0.01 0.012 ±0.02 0.018
      BNK1404‑3RRG0+280LC3Y 150 198 213 280 0.025 0.01 0.008 0.009 ±0.01 0.008
      BNK1404‑3RRG0+280LC5Y 150 198 213 280 0.03 0.012 0.01 0.012 ±0.02 0.018
      BNK1404‑3RRG0+330LC3Y 200 248 263 330 0.03 0.01 0.008 0.009 ±0.012 0.008
      BNK1404‑3RRG0+330LC5Y 200 248 263 330 0.04 0.012 0.01 0.012 ±0.023 0.018
      BNK1404‑3RRG0+430LC3Y 300 348 363 430 0.04 0.01 0.008 0.009 ±0.013 0.01
      BNK1404‑3RRG0+430LC5Y 300 348 363 430 0.05 0.012 0.01 0.012 ±0.025 0.02
      BNK1404‑3RRG0+530LC3Y 400 448 463 530 0.045 0.01 0.008 0.009 ±0.015 0.01
      BNK1404‑3RRG0+530LC5Y 400 448 463 530 0.055 0.012 0.01 0.012 ±0.027 0.02
      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) 14
      Lead (mm) 8
      BCD (mm) 14.75
      Thread minor diameter (mm) 11.2
      Number of circuits 1×2.5
      Axial clearance 0
      Basic dynamic load rating Ca (kN) 4.3
      Basic dynamic load rating C0a (kN) 5.8
      Preload torque (N-m) 0.02 to 0.078
      Spacer ball 1:1
      Rigidity (N/µm) 80
      Circulation method Return Pipe
      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 axis
      D      		 Runout of the nut circumference
      H      		 Flange perpen-dicularity
      I      		 Runout of the thread groove sruface
      J      		 Representative travel distance error Fluctuation
      mm mm mm mm mm mm mm mm mm mm
      BNK1408‑2.5RRG0+321LC5Y 150 239 254 321 0.035 0.015 0.011 0.012 ±0.023 0.018
      BNK1408‑2.5RRG0+371LC5Y 200 289 304 371 0.035 0.015 0.011 0.012 ±0.023 0.018
      BNK1408‑2.5RRG0+421LC5Y 250 339 354 421 0.04 0.015 0.011 0.012 ±0.025 0.02
      BNK1408‑2.5RRG0+471LC5Y 300 389 404 471 0.04 0.015 0.011 0.012 ±0.025 0.02
      BNK1408‑2.5RRG0+521LC5Y 350 439 454 521 0.04 0.015 0.011 0.012 ±0.027 0.02
      BNK1408‑2.5RRG0+571LC5Y 400 489 504 571 0.04 0.015 0.011 0.012 ±0.027 0.02
      BNK1408‑2.5RRG0+621LC5Y 450 539 554 621 0.04 0.015 0.011 0.012 ±0.03 0.023
      BNK1408‑2.5RRG0+671LC5Y 500 589 604 671 0.04 0.015 0.011 0.012 ±0.03 0.023
      BNK1408‑2.5RRG0+721LC5Y 550 639 654 721 0.065 0.015 0.011 0.012 ±0.035 0.025
      BNK1408‑2.5RRG0+771LC5Y 600 689 704 771 0.065 0.015 0.011 0.012 ±0.035 0.025
      BNK1408‑2.5RRG0+871LC5Y 700 789 804 871 0.085 0.015 0.011 0.012 ±0.035 0.025
      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 04 01 - 3   G0 + 77L C3 Y
    BNK 04 01 Various No symbol : No seal G0 : 0 Length in millimeters then "L" C3 Y
      05 02   RR : Labyrinth seal
      06 04
      08 05
      10 08
      12 10
      14

    Note 1: See the Specifications tab to see standard sizes available.

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