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SO SERIES
Ball Splines

SO SERIES

Series / Model SO

Ball Spline is a precision mechanical transmission element suitable for applications requiring high precision, high rigidity, high speed and large loads, especially for round-trip and rotary movements.

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Product information

Overview

Single-outlet spline shaft model

SO SERIES — original technical reference

 

SO SERIES — original technical reference

Nominal model Shaft diameter Ball row Spline bearing sleeve
d D L A B E H W Mounting holes
h7 X
SOF008 8 2 15 25 28 3.8 5.2 22 22 3.4
SOF010 10 2 19 30 36 4.1 5.9 28 28 4.5
SOF012 12 2 21 35 38  4  6 30 30 4.5
SOF015 13.6 2 23 40 40 4.5 6.5 31 32 4.5
SOF020 18.2 2 30 50 46 5.5 8.5 35 38 4.5
SOF025 22.6 2 37 60 57 6.6 10.4 43 47 5.5

SO SERIES — original technical reference

 Nominal model   Basic load rating  Basic rated torque   Allowable static moment Weight 
C C0  CT  COT  MA1 MA2 Spline outer cylinderv  Spline shaft
kgf kgf  kgf.m  kgf.m  kgf.m kgf.m g  kg/m
SOF008 121 136 0.56 0.63 0.34 2.24 23.5 0.39
SOF010 192 219 1.11 1.27 0.71 4.23 45 0.61
SOF012 222 274 1.51 1.87 1.08 6.02 59 0.88
SOF015 426 619 3.19 4.65 2.83 15.49 77 1.11
SOF020 673 922 6.73 9.22 4.95 29.36 150 2.02
SOF025 1142 1458 14.17 18.14 9.46 56.17 255 3.10

SO SERIES — original technical reference

Nominal model  Shaft diameter Ball row  Spline bearing sleeve Keyway size
d D L S L1 b t
h7 H8 +0.05
0
SOT008 8 2 15 25 14.6 8.5 2.5 1.5
SOT010 10 2 19 30 18.2 11 3 1.8
SOT012 12 2 21 35 23 15 3 1.8
SOT015 13.6 2 23 40 27 20 3.5 2
SOT020 18.2 2 30 50 33 26 4 2.5
SOT025 22.6 2 37 60 39.2 29 5 3

SO SERIES — original technical reference

 Nominal model   Basic load rating  Basic rated torque   Allowable static moment Weight 
C C0  CT  COT  MA1 MA2 Spline outer cylinderv  Spline shaft
kgf kgf  kgf.m  kgf.m  kgf.m kgf.m g  kg/m
SOT008 121 136 0.56 0.63 0.34 2.24 15.9 0.39
SOT010 192 219 1.11 1.27 0.71 4.23 31.5 0.61
SOT012 222 274 1.51 1.87 1.08 6.02 44 0.88
SOT015 426 619 3.19 4.65 2.83 15.49 59.5 1.11
SOT020 673 922 6.73 9.22 4.95 29.36 130 2.02
SOT025 1142 1458 14.17 18.14 9.46 56.17 220 3.10

SO SERIES — original technical reference

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