NTN - Large Bearings

Bearing Tolerances
Table 3.4 Tolerance of tapered roller bearings (Metric system)
Table 3.4 (1) Inner rings
Nominal
bore
diameter
d
mm
over incl.
80
120
180
250
315
400
500
630
800
1,000
1,250
120
180
250
315
400
500
630
800
1,000
1,250
1,600
0
0
0
0
0
0
0
0
0
0
0
Single plane mean bore
diameter deviation
-20
-25
-30
-35
-40
-45
-50
-75
-100
-125
-160
0
0
0
∆dmp
1
class 0,6X class 5,6 class 4
high low high
low high low
-15
-18
-22
0
0
0
-10
-13
-15
Single radial plane
bore diameter variation
class
0,6X
20
25
30
35
40
45
50
75
100
125
160
15
18
22
Vdp
class class
6 5
max
1 The dimensional difference ∆ds of bore diameter to be applied for class 4 is the same as the tolerance of dimensional difference ∆dmp of average bore diameter.
11
14
17
class
4
8
10
11
Mean single plane
bore diameter variation
class
0,6X
15
19
23
26
30
34
38
56
75
94
120
11
14
16
Vdmp
class class
6 5
max
8
9
11
class
4
5
7
8
Inner ring radial runout
class
0,6X
30
35
50
60
70
80
90
105
120
140
160
13
18
20
Kia
class class
6 5
max
8
11
13
class
4
5
6
8
Face
runout
with bore
Sd
class class
5 4
max
9
10
11
5
6
7
Table 3.4 (2) Outer rings
Nominal
outside
diameter
D
mm
over incl.
80
120
150
180
250
315
400
500
630
800
1,000
1,250
1,600
120
150
180
250
315
400
500
630
800
1,000
1,250
1,600
2,000
0
0
0
0
0
0
0
0
0
0
0
0
0
Single plane mean outside
diameter deviation
-18
-20
-25
-30
-35
-40
-45
-50
-75
-100
-125
-160
-200
0
0
0
0
0
0
∆Dmp
3
class 0,6X class 5,6 class 4
high low high
low high low
-13
-15
-18
-20
-25
-28
0
0
0
0
0
0
-10
-11
-13
-15
-18
-20
class
0,6X
18
20
25
30
35
40
45
50
75
100
125
160
200
Single radial plane
outside diameter
variation
VDp
class class
6 5
13
15
18
20
25
28
max
10
11
14
15
19
22
2 The dimensional difference ∆Ds of outside diameter to be applied for class 4 is the same as the tolerance of dimensional difference ∆Dmp of average outside diameter.
3 ∆Ds as the same as ∆Dmp in the case of class 4.
class
4
8
8
10
11
14
15
class
0,6X
14
15
19
23
26
30
34
38
56
75
84
120
150
Mean single plane
outside diameter
variation
VDmp
class class
6 5
10
11
14
15
19
21
max
7
8
9
10
13
14
class
4
5
6
7
8
9
10
Outer ring radial runout
class
0,6X
35
40
45
50
60
70
80
100
120
140
165
190
230
18
20
23
25
30
35
Kea
class class
6 5
max
10
11
13
15
18
20
class
4
6
7
8
10
11
13
Outside
surface
inclination
2
SD
class class
5 4
max
9
10
10
11
13
13
5
5
5
7
8
10
T
C
C1
C2
B1
B
B2
D d D
d
D
d
D
d
Single
Double Row
(outside direction)
Double Row
(inside direction)
Four Row
A-14