AWD/WD Brand Precision Bearings AWD/WD Brand Precision BearingsEmail: sales@wd-bearing.com     
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 Description   Application   Model   Maintenance


Technical Parameters Technical Parameters
1.Radial Internal Clearance of Cylidrical Bore Bearings
Nominal Bore Diameter
d(mm)		 Group 2 Basic Group Group3
Over Incl. Min. Max. Min. Max. Min. Max.
10 18 3 18 10 25 18 33
18 24 5 20 12 28 20 36
24 30 5 20 12 28 23 41
30 40 6 20 13 33 28 46
40 50 6 23 14 36 30 51
50 65 8 28 18 43 38 61
65 80 10 30 20 51 46 71
80 100 12 36 24 58 53 84
100 120 15 41 28 66 61 97
120 140 18 48 33 81 71 114
2.Outer Rings Tolerances
D(mm) △Dmp kea
Over Incl. High Low Max.
30 50 0 -11 20
50 80 0 -13 25
80 120 0 -15 35
120 150 0 -18 40
150 180 0 -25 45
180 250 0 -30 50
3.Cylindrical bore of inner rings tolerances
D(mm) △dmp △ds Kia △Bs
Over Incl. High Low High Low Max. High Low
10 18 +18 0 +22 -4 12 0 -120
18 30 +21 0 +25 -4 15 0 -120
30 50 +25 0 +30 -5 18 0 -120
50 80 +30 0 +36 -6 22 0 -150
80 120 +35 0 +42 -7 28 0 -200
120 180 +40 0 +48 -8 35 0 -250
4.Mounting instructions
All TC inner rings with setscrews are specially heat-treated.The race-way is hardende and extended part of setscrew is hardened and extended part of setscrew is well annealled.By this process distortion of the setscrew holes and threads well be avoided.
Setscrew Size Recommended torque (max) Proof torque
in mm in-lbs kg-cm in-lbs kg-cm
1/4-28 M6x1 44 50 88 100
5/16-24 M8x1 97 110 158 180
3/8-24 M10x1.25 185 210 265 300


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Direct Line: +86-510-8279 1933
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Email: sales@wd-bearing.com


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