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    BNF Set

    Unfinished Shaft Ends
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    The simplest type with a single ball screw nut. It is designed to be mounted using the bolt holes drilled on the flange.

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    Days to Ship Clear
    Shaft O.D. (mm) Clear
    10. see 4 more see less
    Lead (mm) Clear
    Shaft Length Range (mm) Clear
    Shaft Length (mm) Clear
    29. see 23 more see less
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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
    Shaft O.D. (mm): 16
    Lead (mm): 5
    Shaft Length (mm): 410
    		BNF1605-2.5RRG1+410LC5A –
    		Days to Ship: 2 - 3 weeks*
    Shaft O.D. (mm): 16
    Lead (mm): 5
    Shaft Length (mm): 510
    		BNF1605-2.5RRG1+510LC5A –
    		Days to Ship: 2 - 3 weeks*
    Shaft O.D. (mm): 16
    Lead (mm): 5
    Shaft Length (mm): 610
    		BNF1605-2.5RRG1+610LC5A –
    		Days to Ship: 2 - 3 weeks*
    Shaft O.D. (mm): 16
    Lead (mm): 5
    Shaft Length (mm): 710
    		BNF1605-2.5RRG1+710LC5A –
    		Days to Ship: 2 - 3 weeks*
    Shaft O.D. (mm): 18
    Lead (mm): 10
    Shaft Length (mm): 410
    		BNF1810-2.5RRG1+410LC5A –
    		Days to Ship: 2 - 3 weeks*
    Shaft O.D. (mm): 18
    Lead (mm): 10
    Shaft Length (mm): 510
    		BNF1810-2.5RRG1+510LC5A –
    		Days to Ship: 2 - 3 weeks*
    Shaft O.D. (mm): 18
    Lead (mm): 10
    Shaft Length (mm): 610
    		BNF1810-2.5RRG1+610LC5A –
    		Days to Ship: 2 - 3 weeks*
    Shaft O.D. (mm): 18
    Lead (mm): 10
    Shaft Length (mm): 710
    		BNF1810-2.5RRG1+710LC5A –
    		Days to Ship: 2 - 3 weeks*
    Shaft O.D. (mm): 18
    Lead (mm): 10
    Shaft Length (mm): 810
    		BNF1810-2.5RRG1+810LC5A –
    		Days to Ship: 2 - 3 weeks*
    Shaft O.D. (mm): 20
    Lead (mm): 5
    Shaft Length (mm): 410
    		BNF2005-5RRG1+410LC5A –
    		Days to Ship: 2 - 3 weeks*
    Shaft O.D. (mm): 20
    Lead (mm): 5
    Shaft Length (mm): 510
    		BNF2005-5RRG1+510LC5A –
    		Days to Ship: 2 - 3 weeks*
    Shaft O.D. (mm): 20
    Lead (mm): 5
    Shaft Length (mm): 610
    		BNF2005-5RRG1+610LC5A –
    		Days to Ship: 2 - 3 weeks*
    Shaft O.D. (mm): 20
    Lead (mm): 5
    Shaft Length (mm): 610
    		BNF2005-5RRG1+610LC5B –
    		Days to Ship: 2 - 3 weeks*
    Shaft O.D. (mm): 20
    Lead (mm): 5
    Shaft Length (mm): 710
    		BNF2005-5RRG1+710LC5A –
    		Days to Ship: 1 - 3 days
    Shaft O.D. (mm): 20
    Lead (mm): 5
    Shaft Length (mm): 710
    		BNF2005-5RRG1+710LC5B –
    		Days to Ship: 2 - 3 weeks*
    Shaft O.D. (mm): 20
    Lead (mm): 5
    Shaft Length (mm): 810
    		BNF2005-5RRG1+810LC5A –
    		Days to Ship: 2 - 3 weeks*
    Shaft O.D. (mm): 20
    Lead (mm): 5
    Shaft Length (mm): 1010
    		BNF2005-5RRG1+1010LC5A –
    		Days to Ship: 2 - 3 weeks*
    Shaft O.D. (mm): 25
    Lead (mm): 5
    Shaft Length (mm): 520
    		BNF2505-5RRG1+520LC5A –
    		Days to Ship: 2 - 3 weeks*
    Shaft O.D. (mm): 25
    Lead (mm): 5
    Shaft Length (mm): 620
    		BNF2505-5RRG1+620LC5A –
    		Days to Ship: 2 - 3 weeks*
    Shaft O.D. (mm): 25
    Lead (mm): 5
    Shaft Length (mm): 720
    		BNF2505-5RRG1+720LC5A –
    		Days to Ship: 2 - 3 weeks*
    Page
    Screw shaft outer diameterd LeadPh Model No. Ball center-to-center diameterdp Thread minor diameterdc No. of loaded circuitsRows × turns Basic load rating Nut dimensions Nut mass
    DynamicC StaticC0 Outer diameterD Flange diameterD1 Overall lengthL1 H B1 PCD d1 × d2 × h GreasingholeA
    mm mm mm mm kN kN mm mm mm mm mm mm mm kg
    16 5 BNF1605-2.5 16.75 13.2 1×2.5 7.4 13.9 40 60 41 10 31 50 4.5×8×4.5 M6 0.37
    18 10 BNF1810-2.5 18.8 15.5 1×2.5 7.8 15.9 42 65 69 12 57 53 5.5×9.5×5.5 M6 0.67
    20 5 BNF2005-5 20.75 17.2 2×2.5 15.1 35 44 67 56 11 45 55 5.5×9.5×5.5 M6 0.57
    25 5 BNF2505-5 25.75 22.2 2×2.5 16.7 44 50 73 55 11 44 61 5.5×9.5×5.5 M6 0.75
    10 BNF2510A-2.5 26.3 21.4 1×2.5 15.8 33 58 85 70 18 52 71 6.6×11×6.5 M6 1.43
    28 6 BNF2806-5 28.75 25.2 2×2.5 17.5 49.4 55 85 68 12 56 69 6.6×11×6.5 M6 1.13
    32 5 BNF3205-5 32.75 29.2 2×2.5 18.5 56.4 58 85 56 12 44 71 6.6×11×6.5 M6 0.93
    10 BNF3210A-5 33.75 26.4 2×2.5 47.2 112.7 74 108 100 15 85 90 9×14×8.5 M6 2.8
    36 10 BNF3610-5 37.75 30.5 2×2.5 50.1 126.4 75 120 111 18 93 98 11×17.5×11 M6 3.4
    40 10 BNF4010-5 41.75 34.4 2×2.5 52.7 141.1 82 124 103 18 85 102 11×17.5×11 M6 3.58
    12 BNF4012-5 42 34.1 2×2.5 61.6 158.3 84 126 119 18 101 104 11×17.5×11 M6 4.2
    50 10 BNF5010-5 51.75 44.4 2×2.5 58.2 176.4 93 135 103 18 85 113 11×17.5×11 PT 1/8 4.4
    Model No. Standardstocksymbol Screw shaft dimensions
    Overall lengthL l0 l1 l2 d3 d4 Shaft mass
    mm mm mm mm mm mm kg/m
    BNF1605-2.5A410200501601612.80.92
    510300501601612.80.92
    610400501601612.80.92
    710500501601612.81.25
    BNF1810-2.5A410200501601815.31.62
    510300501601815.31.62
    610400501601815.31.62
    710500501601815.31.62
    810600501601815.31.62
    BNF2005-5A410200501602015.31.65
    510300501602015.31.65
    610400501602015.31.65
    710500501602015.31.65
    810600501602016.81.65
    1010800501602016.81.65
    B610300502602016.81.65
    710400502602016.81.65
    BNF2505-5A520300601602520.32.84
    620400601602520.32.84
    720500601602520.32.84
    820600601602520.32.84
    1020800601602521.82.84
    12201000601602521.82.84
    14201200601602521.82.84
    B720400602602521.82.84
    820500602602521.82.84
    BNF2510A-2.5A620400601602520.32.68
    820600601602520.32.68
    1020800601602520.32.68
    12201000601602520.32.68
    14201200601602520.32.68
    BNF2806-5A520300601602820.33.89
    620400601602820.33.89
    720500601602820.33.89
    920700601602820.33.89
    1020800601602824.83.89
    12201000601602824.83.89
    14201200601602824.83.89
    B720400702502824.83.89
    920500703502824.83.89
    1100700703302824.83.89
    BNF3205-5A730500701603225.35.03
    930700701603225.35.03
    12301000701603225.35.03
    14301200701603225.35.03
    16301400701603227.85.03
    18301600701603227.85.03
    BNF3210A-5A730500701603225.33.66
    930700701603225.33.66
    14301200701603225.33.66
    18301600701603225.33.66
    BNF3610-5A730500701603630.35.03
    930700701603630.35.03
    14301200701603630.35.03
    18301600701603630.35.03
    B9305001003303630.35.03
    11007001003003630.35.03
    183012001005303630.35.03
    BNF4010-5A12301000701604030.36.59
    17301500701604030.36.59
    20301800701604030.36.59
    22302000701604030.36.59
    BNF4012-5A12301000701604030.36.39
    17301500701604030.36.39
    20301800701604030.36.39
    22302000701604030.36.39
    B173012001004304033.86.39
    203012001007304033.86.39
    BNF5010-5A130010001002005040.311.36
    180015001002005040.311.36
    230020001002005040.311.36
    280025001002005040.311.36
     For more detailed specifications, please download the Product Catalog with the link in the Downloads section of this product page.
    Model Screw shaft outer diameter Lead(in mm) No. of circuits Seals Clearance Shaft length(in mm)*1 Accuracy Standard stock symbol
    BNF 16 05 - 2.5 RR G1 + 410L C5 A
    BNF 16~50 04~12 Various RR : Labyrinth seal G1 : 0 to 0.01 mm Length in millimeters then "L" C5 A
      B
    Note 1: See the Specifications tab to see standard sizes available.