bearings Tolerances
1.1Outer rings tolerances
Outer Rings Tolerances
D(mm)
¡÷Dmp
Kea
Over
Incl.
High
Low
Max.
30
50
80
120
150
180
50
80
120
150
180
250
0
0
0
0
0
0
-11
-13
-15
-18
-25
-30
20
25
35
40
45
50
Notes£º1.¡÷The deviation of a single plane mean outside diameter of the outer ring.
....2.Radial runot of assembled bearings outer ring.
 
1.2 Inner rings tolerances(The inner rings tolerances are shown in Table4 and Table 5.
1.2.1Tolerances for cylindrical bore bearings inner rings.
Gylindrical Bore Inner Rings Tolerances
d(mm)
¡÷dmp
Vdp max
¡÷Hs
¡÷Bs
Kis max
High
Low
High
Low
High
Low
>10¡«18
>10¡«30
>30¡«50
>50¡«80
>80¡«120
>120¡«180
+15
+18
+21
+24
+28
+33
0
0
0
0
0
0
10
12
14
16
19
22
+100
+100
+100
+100
+100
+100
-100
-100
-100
-100
-100
-100
0
0
0
0
0
0
-120
-120
-120
-150
-200
-250
12
15
18
22
28
35
Notes£º1.¡÷Single plane mean bore diameter deviation.
....2.Radial runot of assembled bearings inner ring.
....3.¡÷Deviation of a single width of inner ring.
....4.The deviation of a single eccentric volume of inner ring or eccentric locking collar.
....5.The deviation of a single radial plane bearings bore diamenter of the inner ring.
 
1.2.2Tolerance for tapered bore bearings inner rings
Tolerances on Inner Rings of Tapered Bore bearings
d(mm)
¡÷d
¡÷d1-¡÷d
Over
Incl.
High
Low
Max.
Min.
10
18
30
50
80
120
18
30
50
80
120
180
+27
+33
+39
+46
+54
+63
0
0
0
0
0
0
+18
+21
+25
+30
+35
+40
0
0
0
0
0
0
Notes£º1.The deviation from nominal taper is defined as the limits of (¡÷d1-¡÷d, wh).
.....¡÷d1is actual deviation of d1 from nominal bore diameter at larger e.
.....¡÷d is actual deviation of d from nominal bearings bore diameter.¡£
....2.d1 is obtained by following formula;
......d1=d+1/12B
.....Where B is width of bearings inner ring.
.....3. The nominal taper angle=2¡ã23¡ä9.4"
 
 
 
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