Skf linear bearings and units en

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Precision shafts

Standard designs for fixed length without chamfer

Dimension

Mass Solid shaft

d

d1

— — 4 — 7 14 16 18 28 30 36 57

0,4 0,4 0,8 0,8 0,8 0,8 1 1 1 1,5 1,5 1,5 2 2 2,5 2,5

Designations Solid shafts Solid shafts of stainless of precision steel steel Cf53/Ck53

cm4

kg/m — — —

Cross sectional area Solid Hollow shaft shaft

rmin

mm 3 4 5 6 8 10 12 14 16 20 25 30 40 50 60 80

Moment of inertia Hollow Solid Hollow shaft shaft shaft

Standard designs for fixed length with chamfer

0,06 0,1 0,15 0,22 0,39 0,62 0,89 1,21 1,58 2,47 3,86 5,55 9,86 15,4 22,2 39,5

— — — — — — 0,79 — 1,28 1,25 2,35 3,5 4,99 9,91 14,2 19,43

0,0004 0,0013 0,0031 0,0064 0,020 0,049 0,102 0,189 0,322 0,785 1,92 3,98 12,6 30,7 63,6 201

X90CrMoV18 X46Cr13

Solid shafts with high grade steel hard chromium Cf53/Ck53

Hollow shaft high grade steel plated Ck60/100Cr6

mm2 — — — — — — — — 0,310 0,597 1,64 3,46 9,96 27,7 57,1 153

7,1 12,6 19,6 28,3 50,3 78,5 113 154 201 314 491 707 1 260 1 960 2 830 5 030

— — — — — — — — 163 160 305 453 685 1 350 1 920 2 565

LJM 5 LJM 6 LJM 8 LJM 10 LJM 12 LJM 14 LJM 16 LJM 20 LJM 25 LJM 30 LJM 40 LJM 50 LJM 60 LJM 80

LJMR 3 LJMR 4 LJMR 5 LJMR 6 LJMR 8 LJMR 10 LJMR 12 LJMR 14 LJMR 16 LJMR 20 LJMR 25 LJMR 30 LJMR 40 LJMR 50 LJMR 60

LJMS 5 LJMS 6 LJMS 8 LJMS 10 LJMS 12 LJMS 14 LJMS 16 LJMS 20 LJMS 25 LJMS 30 LJMS 40 LJMS 50 LJMS 60

LJMH 5 LJMH 6 LJMH 8 LJMH 10 LJMH 12 LJMH 14 LJMH 16 LJMH 20 LJMH 25 LJMH 30 LJMH 40 LJMH 50 LJMH 60 LJMH 80

LJT 12 LJT 16 LJT 20 LJT 25 LJT 30 LJT 40 LJT 50 LJT 60 LJT 80

Attention: d1 can deviate from the value quoted. Please enquire if necessary. Different shaft diameters and types on request. The static load capacity has to be decreased by 8 % and the dynamic load capacity by 18 % when using the non corrosion types (HV6) in conjunction with precision steel shafts made of stainless steel. 1)

Shafts cut to special length with chamfered ends. The length tolerance of these shafts corresponds to LJM 20x1500 ESSC2 medium class. The designation for a shaft with 20 mm diameter cut to a length of 1,5 m is, for example, LJM 20x1500 ESSC2.

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