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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

 BASIC RATE LOAD(kgf) BALLNUT DIMENSION Nut Model No.
O.D. Length Flange Assembly
Hole		 Fit Oil Hole STIFFNESS
O.D. Lead Dynamic
(1×106 REV.)
Ca

Static

Co

 D

L

 A T W H X S Q kgf/μm
16 5 3.175 3 570 1030 28 42 48 10 38 40 5.5 12 M6x1P 17 FSIN1605-3.0P
20 5 3.175 4 830 1890 36 50 58 12 47 44 6.5 12 M6x1P 21 FSIN2005-4.0P
25 5 3.175 4 940 2420 40 50 62 12 51 48 6.5 12 M6x1P 26 FSIN2505-4.0P
10 4.762 4 1560 3550 40 85 62 12 51 48 6.5 15 M6x1P 27 FSIN2510-4.0P
32 5 3.175 4 1050 3390 50 50 80 12 65 62 9 12 M6x1P 32 FSIN3205-4.0P
10 6.35 4 2510 5880 50 80 80 13 65 62 9 16 M6x1P 34 FSIN3210-4.0P
40 5 3.175 4 1180 4390 63 54 93 15 78 70 9 12 M8x1P 38 FSIN4005-4.0P
10 6.35 4 2430 7860 63 82 93 15 78 70 9 15 M8x1P 41 FSIN4010-4.0P
50 10 6.35 4 2770 10290 75 88 110 18 93 85 11 16 M8x1P 50 FSIN5010-4.0P
10 6.35 6 3920 15400 75 106 110 18 93 85 11 16 M8x1P 73 FSIN5010-6.0P