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    BNK Set - Mini

    Finished Shaft Ends
    main product photo
    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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    Days to Ship Clear
    Shaft O.D. (mm) Clear
    7. show 1 more show less
    Lead (mm) Clear
    7. show 1 more show less
    Stroke (mm) Clear
    17. show 11 more show less
    Accuracy Clear
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    *Please contact THK if you need more than available quantity or out of stock items
    Attributes Part Number Online Store
    Unit Price (USD)    		 Quantity Days to Ship Item Total
    Stroke (mm): 20
    Shaft O.D. (mm): 4
    Lead (mm): 1
    		BNK0401-3G2+77LC7Y –
    		Days to Ship: 3 - 4 weeks
    Stroke (mm): 40
    Shaft O.D. (mm): 4
    Lead (mm): 1
    		BNK0401-3G2+97LC7Y –
    		Days to Ship: 3 - 4 weeks
    Stroke (mm): 70
    Shaft O.D. (mm): 4
    Lead (mm): 1
    		BNK0401-3G2+127LC7Y –
    		Days to Ship: 3 - 4 weeks
    Stroke (mm): 40
    Shaft O.D. (mm): 6
    Lead (mm): 1
    		BNK0601-3G2+100LC7Y –
    		Days to Ship: 3 - 4 weeks
    Stroke (mm): 70
    Shaft O.D. (mm): 6
    Lead (mm): 1
    		BNK0601-3G2+130LC7Y –
    		Days to Ship: 3 - 4 weeks
    Stroke (mm): 100
    Shaft O.D. (mm): 6
    Lead (mm): 1
    		BNK0601-3G2+160LC7Y –
    		Days to Ship: 3 - 4 weeks
    Stroke (mm): 40
    Shaft O.D. (mm): 8
    Lead (mm): 1
    		BNK0801-3G2+115LC7Y –
    		Days to Ship: 3 - 4 weeks
    Stroke (mm): 70
    Shaft O.D. (mm): 8
    Lead (mm): 1
    		BNK0801-3G2+145LC7Y –
    		Days to Ship: 3 - 4 weeks
    Stroke (mm): 100
    Shaft O.D. (mm): 8
    Lead (mm): 1
    		BNK0801-3G2+175LC7Y –
    		Days to Ship: 3 - 4 weeks
    Stroke (mm): 150
    Shaft O.D. (mm): 8
    Lead (mm): 1
    		BNK0801-3G2+225LC7Y –
    		Days to Ship: 3 - 4 weeks
    Stroke (mm): 40
    Shaft O.D. (mm): 8
    Lead (mm): 2
    		BNK0802-3RRG2+125LC7Y –
    		Days to Ship: 3 - 4 weeks
    Stroke (mm): 70
    Shaft O.D. (mm): 8
    Lead (mm): 2
    		BNK0802-3RRG2+155LC7Y –
    		Days to Ship: 3 - 4 weeks
    Stroke (mm): 100
    Shaft O.D. (mm): 8
    Lead (mm): 2
    		BNK0802-3RRG2+185LC7Y –
    		Days to Ship: 3 - 4 weeks
    Stroke (mm): 150
    Shaft O.D. (mm): 8
    Lead (mm): 2
    		BNK0802-3RRG2+235LC7Y –
    		Days to Ship: 3 - 4 weeks
    Stroke (mm): 100
    Shaft O.D. (mm): 8
    Lead (mm): 10
    		BNK0810-3GT+205LC5Y –
    		Days to Ship: 3 - 4 weeks
    Stroke (mm): 100
    Shaft O.D. (mm): 8
    Lead (mm): 10
    		BNK0810-3G2+205LC7Y –
    		Days to Ship: 3 - 4 weeks
    Stroke (mm): 150
    Shaft O.D. (mm): 8
    Lead (mm): 10
    		BNK0810-3GT+255LC5Y –
    		Days to Ship: 3 - 4 weeks
    Stroke (mm): 150
    Shaft O.D. (mm): 8
    Lead (mm): 10
    		BNK0810-3G2+255LC7Y –
    		Days to Ship: 3 - 4 weeks
    Stroke (mm): 200
    Shaft O.D. (mm): 8
    Lead (mm): 10
    		BNK0810-3GT+305LC5Y –
    		Days to Ship: 3 - 4 weeks
    Stroke (mm): 200
    Shaft O.D. (mm): 8
    Lead (mm): 10
    		BNK0810-3G2+305LC7Y –
    		Days to Ship: 3 - 4 weeks
    Page
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    • 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
      Clearance symbol GT G2
      Axial clearance 0.005 or less 0.02 or less
      Basic dynamic load rating Ca (kN) 0.29
      Basic static load rating C0a (kN) 0.42
      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 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
      BNK0401‑3G2+77LC7Y 20 47 54 77 0.035 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK0401‑3G2+97LC7Y 40 67 74 97 0.035 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK0401‑3G2+127LC7Y 70 95 104 127 0.05 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      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
      Clearance symbol GT G2
      Axial clearance 0.005 or less 0.02 or less
      Basic dynamic load rating Ca (kN) 0.54
      Basic static load rating C0a (kN) 0.94
      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 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
      BNK0601‑3G2+100LC7Y 40 65 75 100 0.035 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK0601‑3G2+130LC7Y 70 95 105 130 0.05 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK0601‑3G2+160LC7Y 100 125 135 160 0.05 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      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
      Clearance symbol GT G2
      Axial clearance 0.005 or less 0.02 or less
      Basic dynamic load rating Ca (kN) 0.64
      Basic static load rating C0a (kN) 1.4
      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 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
      BNK0801‑3G2+115LC7Y 40 66 76 115 0.035 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK0801‑3G2+145LC7Y 70 96 106 145 0.05 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK0801‑3G2+175LC7Y 100 126 136 175 0.05 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK0801‑3G2+225LC7Y 150 176 186 225 0.065 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      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
      Clearance symbol GT G2
      Axial clearance 0.005 or less 0.02 or less
      Basic dynamic load rating Ca (kN) 1.4
      Basic static load rating C0a (kN) 2.3
      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 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
      BNK0802‑3RRG2+125LC7Y 40 75 86 125 0.035 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK0802‑3RRG2+155LC7Y 70 105 116 155 0.05 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK0802‑3RRG2+185LC7Y 100 135 146 185 0.05 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK0802‑3RRG2+235LC7Y 150 185 196 235 0.065 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      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) 10
      BCD (mm) 8.4
      Thread minor diameter (mm) 6.7
      Number of circuits 3×1
      Clearance symbol GT G2
      Axial clearance 0.005 or less 0.02 or less
      Basic dynamic load rating Ca (kN) 2.16
      Basic static load rating C0a (kN) 3.82
      Rigidity (N/µm) 100
      Circulation method End Cap
      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 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
      BNK0810‑3GT+205LC5Y 100 154 166 205 0.05 0.012 0.01 0.01 ±0.02 0.018
      BNK0810‑3G2+205LC7Y 100 154 166 205 0.065 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK0810‑3GT+255LC5Y 150 204 216 255 0.05 0.012 0.01 0.01 ±0.023 0.018
      BNK0810‑3G2+255LC7Y 150 204 216 255 0.065 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK0810‑3GT+305LC5Y 200 254 266 305 0.05 0.012 0.01 0.01 ±0.023 0.018
      BNK0810‑3G2+305LC7Y 200 254 266 305 0.065 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK0810‑3GT+355LC5Y 250 304 316 355 0.06 0.012 0.01 0.01 ±0.023 0.018
      BNK0810‑3G2+355LC7Y 250 304 316 355 0.075 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK0810‑3GT+405LC5Y 300 354 366 405 0.07 0.012 0.01 0.01 ±0.025 0.02
      BNK0810‑3G2+405LC7Y 300 354 366 405 0.09 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      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
      Clearance symbol GT G2
      Axial clearance 0.005 or less 0.02 or less
      Basic dynamic load rating Ca (kN) 1.5
      Basic static load rating C0a (kN) 2.9
      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 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
      BNK1002‑3RRG2+143LC7Y 50 85 97 143 0.04 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK1002‑3RRG2+193LC7Y 100 135 147 193 0.04 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK1002‑3RRG2+243LC7Y 150 185 197 243 0.055 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK1002‑3RRG2+293LC7Y 200 235 247 293 0.055 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      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
      Clearance symbol GT G2
      Axial clearance 0.005 or less 0.02 or less
      Basic dynamic load rating Ca (kN) 3.4
      Basic static load rating C0a (kN) 5.4
      Rigidity (N/µm) 100
      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 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
      BNK1004‑2.5RRG2+180LC7Y 50 110 125 180 0.04 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK1004‑2.5RRGT+330LC3Y 200 260 275 330 0.04 0.009 0.008 0.008 ±0.012 0.008
      BNK1004‑2.5RRG2+330LC7Y 200 260 275 330 0.065 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK1004‑2.5RRGT+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
      Clearance symbol GT G2
      Axial clearance 0.005 or less 0.02 or less
      Basic dynamic load rating Ca (kN) 2.1
      Basic static load rating C0a (kN) 3.1
      Rigidity (N/µm) 140
      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 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
      BNK1010‑1.5RRG2+290LC7Y 150 217 235 290 0.04 0.012 0.01 0.011 Travel distance: ±0.05mm/300mm
      BNK1010‑1.5RRGT+340LC5Y 200 267 285 340 0.065 0.02 0.014 0.014 ±0.023 0.018
      BNK1010‑1.5RRGT+440LC5Y 300 367 385 440 0.08 0.02 0.014 0.014 ±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
      Clearance symbol GT G2
      Axial clearance 0.005 or less 0.02 or less
      Basic dynamic load rating Ca (kN) 1.7
      Basic static load rating C0a (kN) 3.6
      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 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
      BNK1202‑3RRG2+154LC7Y 50 85 99 154 0.04 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK1202‑3RRG2+204LC7Y 100 135 149 204 0.055 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK1202‑3RRG2+254LC7Y 150 185 199 254 0.055 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK1202‑3RRG2+304LC7Y 200 235 249 304 0.055 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK1202‑3RRG2+354LC7Y 250 285 299 354 0.065 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      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
      Clearance symbol GT G2
      Axial clearance 0.005 or less 0.02 or less
      Basic dynamic load rating Ca (kN) 3.7
      Basic static load rating C0a (kN) 6.4
      Rigidity (N/µm) 120
      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 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
      BNK1205‑2.5RRGT+180LC3Y 50 110 125 180 0.04 0.02 0.014 0.014 ±0.01 0.008
      BNK1205‑2.5RRG2+230LC7Y 100 160 175 230 0.055 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK1205‑2.5RRG2+280LC7Y 150 210 225 280 0.055 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK1205‑2.5RRGT+280LC3Y 150 210 225 280 0.065 0.02 0.014 0.014 ±0.012 0.008
      BNK1205‑2.5RRGT+330LC3Y 200 260 275 330 0.065 0.02 0.014 0.014 ±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) 12
      Lead (mm) 8
      BCD (mm) 12.65
      Thread minor diameter (mm) 9.7
      Number of circuits 1×2.6
      Clearance symbol GT G2
      Axial clearance 0.005 or less 0.02 or less
      Basic dynamic load rating Ca (kN) 4.7
      Basic static load rating C0a (kN) 7.5
      Rigidity (N/µm) 120
      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 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
      BNK1208‑2.6RRG2+380LC7Y 250 310 325 380 0.065 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      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) 16.3
      Thread minor diameter (mm) 13
      Number of circuits 3×1
      Clearance symbol GT G2
      Axial clearance 0.005 or less 0.02 or less
      Basic dynamic load rating Ca (kN) 1.8
      Basic static load rating C0a (kN) 4.3
      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 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
      BNK1402‑3RRG2+166LC7Y 50 85 99 166 0.04 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK1402‑3RRG2+216LC7Y 100 135 149 216 0.045 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK1402‑3RRG2+266LC7Y 150 185 199 266 0.045 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK1402‑3RRG2+316LC7Y 200 235 249 316 0.055 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK1402‑3RRG2+416LC7Y 300 335 349 416 0.06 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      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
      Clearance symbol GT G2
      Axial clearance 0.005 or less 0.02 or less
      Basic dynamic load rating Ca (kN) 4.2
      Basic static load rating C0a (kN) 7.6
      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 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
      BNK1404‑3RRG2+230LC7Y 100 148 163 230 0.045 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK1404‑3RRG2+280LC7Y 150 198 213 280 0.045 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK1404‑3RRG2+330LC7Y 200 248 263 330 0.055 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK1404‑3RRG2+430LC7Y 300 348 363 430 0.06 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      BNK1404‑3RRG2+530LC7Y 400 448 463 530 0.075 0.02 0.014 0.014 Travel distance: ±0.05mm/300mm
      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
      Clearance symbol GT G2
      Axial clearance 0.005 or less 0.02 or less
      Basic dynamic load rating Ca (kN) 6.9
      Basic static load rating C0a (kN) 11.5
      Rigidity (N/µm) 150
      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 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
      BNK1408‑2.5RRGT+321LC5Y 150 239 254 321 0.055 0.03 0.018 0.014 ±0.023 0.018
      BNK1408‑2.5RRGT+371LC5Y 200 289 304 371 0.055 0.03 0.018 0.014 ±0.023 0.018
      BNK1408‑2.5RRGT+421LC5Y 250 339 354 421 0.04 0.015 0.011 0.012 ±0.025 0.02
      BNK1408‑2.5RRG2+421LC7Y 250 339 354 421 0.06 0.03 0.018 0.014 Travel distance: ±0.05mm/300mm
      BNK1408‑2.5RRGT+471LC5Y 300 389 404 471 0.04 0.015 0.011 0.012 ±0.025 0.02
      BNK1408‑2.5RRG2+471LC7Y 300 389 404 471 0.04 0.015 0.011 0.012 Travel distance: ±0.05mm/300mm
      BNK1408‑2.5RRGT+521LC5Y 350 439 454 521 0.04 0.015 0.011 0.012 ±0.027 0.02
      BNK1408‑2.5RRGT+571LC5Y 400 489 504 571 0.04 0.015 0.011 0.012 ±0.027 0.02
      BNK1408‑2.5RRG2+571LC7Y 400 489 504 571 0.04 0.015 0.011 0.012 Travel distance: ±0.05mm/300mm
      BNK1408‑2.5RRG2+621LC7Y 450 539 554 621 0.04 0.015 0.011 0.012 Travel distance: ±0.05mm/300mm
      BNK1408‑2.5RRGT+671LC5Y 500 589 604 671 0.04 0.015 0.011 0.012 ±0.03 0.023
      BNK1408‑2.5RRG2+671LC7Y 500 589 604 671 0.09 0.03 0.018 0.014 Travel distance: ±0.05mm/300mm
      BNK1408‑2.5RRGT+721LC5Y 550 639 654 721 0.09 0.03 0.018 0.014 ±0.035 0.025
      BNK1408‑2.5RRG2+771LC7Y 600 689 704 771 0.09 0.03 0.018 0.014 Travel distance: ±0.05mm/300mm
      BNK1408‑2.5RRGT+871LC5Y 700 789 804 871 0.12 0.03 0.018 0.014 ±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   G2 + 77L C7 Y
    BNK 04 01 Various No symbol : No seal GT : 0.005 or less Length in millimeters then "L" C3 Y
      06 02   RR : Labyrinth seal G2 : 0.02 or less   C5
      08 04   C7
      10 05
      12 08
      14 10
    Note 1: See the Specifications tab to see standard sizes available.