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Note:
Stiff ness of nut:
Stiff ness values listed above are derived from theoretical formula to the elastic deformation between thread grooves and balls while axial load is
30% dynamic load rating.
 
Screw size Ball DIA.

Effeftive turns
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 BASIC RATE LOAD(kgf) BALLNUT DIMENSION Nut Model No.
O.D. Length Flange Reture Tube STIFFNESS
O.D. Lead Dynamic
(1×106 REV.)
Ca

Static

Co

 D

L

 M T U V kgf/μm
14 4 2.381 3.5x1 500 1100 25 42 M24x1.0P 10 19 21 15 RSVW1404-3.5P
5 3.175 2.5x1 515 990 30 43 M26x1.5P 10 22 21 11 RSVW1405-2.5P
20 5 3.175 2.5x1 625 1450 40 43 M36x1.5P 12 28 27 15 RSVW1605-2.5P
25 5 3.175 2.5x1 720 1830 42 48 M40x1.5P 15 28 32 18 RSVW2505-2.5P
2.5x2 1120 3710 63 37 RSVW2505-5.0P
10 6.350 2.5x1 1720 3590 44 68 M42x1.5P 15 34 37 21 RSVW2510-2.5P
2.5x2 3200 7170 98 40 RSVW2510-5.0P
32 10 6.350 2.5x1 1930 4680 55 72 M50x1.5P 18 39 44 25

RSVW3210-2.5P
2.5x2 3130 9410 101 49 RSVW3210-5.0P
40 10 6.350 3.5x2 4450 16800 65 128 M60x1.5P 25 44 52 81 RSVW4010-7.0P
50 10 6.350 3.5x2 4940 21000 80 143 M75x2.0P 40 52 62 98 RSVW5010-7.0P