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Inner Ring (IR)
Check up to five results to perform an action.
Ideal choice where the shaft is not practical to use as inner raceway.
Designed to meet established inch tolerances.
Maximum shaft fillet radius cannot exceed inner-ring bore chamfer as shown.
Optional centralized lubrication groove (bore) or through hole available – specify when ordering.
Designed to be axially clamped against shoulder for loose transition fit on shaft.
After mounting, for tight transition fit (keeping inner ring from rotating relative to shaft), inner-ring O.D. must not exceed raceway diameter on matching bearing.
After mounting, if O.D. of inner ring exceeds the required raceway diameter for matching bearing, ring should be ground to proper diameter while mounted on shaft.
Unmarked end of inner ring to be assembled against the shaft shoulder to ensure clearing the maximum allowable shaft fillet as indicated in tables shown.
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Inner Ring (IR)-2
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Results 1 - 24 of 24
1
Part Number
Shaft Diameter
Dimension D
Dimension F
Dimension B
Max. Loose Transition Fit S
CAD
IR-506032
3.125
in
3.125
in
79.375
mm
3.7500
in
95.250
mm
2
in
50.8
mm
3.1246
in
79.365
mm
IR-526032
3.25
in
3.250
in
82.55
mm
3.7500
in
95.250
mm
2
in
50.8
mm
3.2495
in
82.537
mm
IR-526432
3.25
in
3.250
in
82.55
mm
4
in
101.600
mm
2
in
50.8
mm
3.2495
in
82.537
mm
IR-546432
3.375
in
3.375
in
85.725
mm
4
in
101.600
mm
2
in
50.8
mm
3.3745
in
85.712
mm
IR-566432
3.50
in
3.500
in
88.9
mm
4
in
101.600
mm
2
in
50.8
mm
3.4995
in
88.887
mm
IR-566832
3.50
in
3.500
in
88.9
mm
4.25
in
107.95
mm
2
in
50.8
mm
3.4995
in
88.887
mm
IR-606832
3.750
in
3.750
in
95.25
mm
4.25
in
107.95
mm
2
in
50.8
mm
3.7495
in
95.237
mm
IR-607236
3.750
in
3.750
in
95.25
mm
4.5000
in
114.300
mm
2.2500
in
57.150
mm
3.7495
in
95.237
mm
IR-607240
3.750
in
3.750
in
95.25
mm
4.5000
in
114.300
mm
2.5000
in
63.500
mm
3.7495
in
95.237
mm
IR-648036
4
in
4.000
in
101.6
mm
5
in
127
mm
2.2500
in
57.150
mm
3.9995
in
101.587
mm
IR-648040
4
in
4.000
in
101.6
mm
5
in
127
mm
2.5000
in
63.500
mm
3.9995
in
101.587
mm
IR-688036
4.25
in
4.250
in
107.95
mm
5
in
127
mm
2.2500
in
57.150
mm
4.2495
in
107.937
mm
IR-728840
4.50
in
4.500
in
114.3
mm
5.5000
in
139.700
mm
2.5000
in
63.500
mm
4.4995
in
114.287
mm
IR-728848
4.50
in
4.500
in
114.3
mm
5.5000
in
139.700
mm
3
in
76.2
mm
4.4995
in
114.287
mm
IR-769248
4.750
in
4.750
in
120.65
mm
5.7500
in
146.050
mm
3
in
76.2
mm
4.7494
in
120.635
mm
IR-809640
5
in
5.000
in
127
mm
6
in
152.400
mm
2.5000
in
63.500
mm
4.9994
in
126.985
mm
IR-809648
5
in
5.000
in
127
mm
6
in
152.400
mm
3
in
76.2
mm
4.9994
in
126.985
mm
IR-8810440
5.5
in
5.500
in
139.7
mm
6 1/2
in
165.1
mm
2.5000
in
63.500
mm
5.4994
in
139.685
mm
IR-8810448
5.5
in
5.500
in
139.7
mm
6 1/2
in
165.1
mm
3
in
76.2
mm
5.4994
in
139.685
mm
IR-9611648
6.000
in
6.000
in
152.4
mm
7-1/4
in
184.150
mm
3
in
76.2
mm
5.9994
in
152.385
mm
IR-10412448
6.5
in
6.5
in
165.1
mm
7.7500
in
196.850
mm
3
in
76.2
mm
6.4994
in
165.085
mm
IR-11213248
7.000
in
7.000
in
177.8
mm
8-1/4
in
209.55
mm
3
in
76.2
mm
6.9994
in
177.785
mm
IR-12014048
7.500
in
7.500
in
190.5
mm
8-3/4
in
222.250
mm
3
in
76.2
mm
7.4994
in
190.485
mm
IR-12814848
8.000
in
8.000
in
203.2
mm
9.25
in
234.95
mm
3
in
76.2
mm
7.9994
in
203.185
mm
Results 1 - 24 of 24
1