NTN - Cylindrical and Tapered Roller Bearings

Tapered Roller Bearings
Bearing Selection by Bore Size
The Bearing Selection Chart by bore size is an aid to
the design engineer in selecting the best single row
bearing for the application. This chart identifies the minimum
bearing outside diameter and minimum bearing
width available in each series. This will aid in selecting
a bearing where space is limited.
The bearing bore is normally selected for an application
according to the required shaft size. After the design
engineer has established the bearing bore size, this
chart will identify all bearing series which include the
required bore size plus information on the axial load
factor and dynamic radial rating to assist in making
the final bearing selection. This chart also refers to
the page number where the detailed information about
bearings in each series can be found. NTN Sales is
available to assist in making the most economical
bearing selection.
Bearing Boundary Dimensions
Bore Diameter
Range
Outside Bearing
Diameter Width
Maximum Minimum Minimum Minimum
Inch/mm
Dynamic
Radial
Rating *
C r
lbs/N
Axial
Load
Factors
e
Y 2
Series
Number
Page
No.
1.7812 3.0625 0.7812 12300 0.43 LM603000 164
45.242 77.788 19.842 55000 1.41
1.9375 1.7500 4.0625 1.7188 38500 0.30 5300 131
49.212 44.450 103.188 43.658 171000 2.02
1.9680 1.9375 4.5000 1.7500 44500 0.40 HH506300 161
49.987 49.212 114.300 44.450 198000 1.49
2.0000 1.7500 4.0000 1.2500 24700 0.40 49500 141
50.800 44.450 101.600 31.750 110000 1.50
2.0000 1.5000 4.0000 1.3750 30000 0.29 525 120
50.800 38.100 101.600 34.925 133000 2.10
2.0000 1.6250 4.1250 1.4375 31500 0.40 59000 142
50.800 41.275 14.775 36.512 140000 1.49
2.0000 1.7500 4.5000 1.7500 41000 0.43 65300 143
50.800 44.450 114.300 44.450 183000 1.40
2.0312 1.6250 3.5000 0.7874 17100 0.32 365 116
51.592 41.275 88.900 20.000 76000 1.88
2.0625 1.7500 3.6718 1.1875 22100 0.34 3700 129
52.388 44.450 93.264 30.162 98000 1.77
2.0625 1.7500 4.3750 1.1875 23400 0.88 55000C 141
52.388 44.450 111.125 30.162 104000 0.68
2.1250 4.1250 1.5313 33000 0.34 4500 130
53.975 104.775 38.895 147000 1.79
2.1250 1.5748 4.2500 1.4375 31500 0.30 535 121
53.975 40.000 107.950 36.512 140000 2.02
2.1250 1.7500 5.0000 2.0000 53000 0.30 6200 131
53.975 44.450 127.000 50.800 236000 2.01
Bearing Boundary Dimensions
Bore Diameter
Range
Outside Bearing
Diameter Width
Maximum Minimum Minimum Minimum
Inch/mm
Dynamic
Radial
Rating *
C r
lbs/N
Axial
Load
Factors
e
Y 2
Series
Number
Page
No.
2.1452 1.6250 4.1250 1.4375 32000 0.49 HM807000 169
54.448 41.275 104.775 36.512 141000 1.23
2.1654 4.3307 1.5354 38500 0.35 H307700 159
55.000 110.000 39.000 171000 1.73
2.2500 1.7500 4.1250 1.0938 25000 0.34 455 118
57.150 44.450 104.775 27.783 111000 1.79
2.2500 1.7500 4.1250 1.1875 28400 0.33 45200 138
57.150 44.450 104.775 30.162 126000 1.80
2.2500 2.0000 4.6250 1.3125 28300 0.63 66000 143
57.150 50.800 117.475 33.338 126000 0.96
2.2500 1.7500 4.7500 1.6250 38500 0.31 615 123
57.150 44.450 120.650 41.275. 171000 1.91
2.2500 1.8750 4.8750 1.4375 35000 0.74 72000C 145
57.150 47.625 123.825 36.512 155000 0.81
2.2650 1.8750 3.8125 0.8268 16800 0.35 385 116
57.531 47.625 96.838 21.000 74500 1.69
2.3622 2.1250 4.8125 1.3125 29300 0.67 66500 143
60.000 53.975 122.238 33.338 130000 0.90
2.3750 2.000 5.0000 1.7500 45000 0.49 65000 143
60.325 50.800 127.000 44.450 200000 1.23
2.4375 2.1250 5.1181` 1.3169 32000 0.82 HM911200 171
61.912 53.975 130.000 33.449 142000 0.73
2.5000 3.7188 0.7500 13100 0.42 L610500 164
63.500 94.458 19.050 58500 1.41
2.5000 4.1250 0.8438 17700 0.39 39000 137
63.500 104.775 21.433 79000 1.55
2.5000 2.1250 5.3750 1.4375 39000 0.87 78000C 147
63.500 53.975 136.525 36.512 173000 0.69
2.5591 4.1339 0.9449 20400 0.45 LM710900 165
65.000 105.000 24.000 91000 1.32
2.5591 4.3307 1.1024 25300 0.40 M511900 162
65.000 110.000 28.000 113000 1.49
2.5591 4.7244 1.5354 41000 0.34 H211700 153
65.000 120.000 39.000 182000 1.78
2.5938 2.0000 4.7343 1.7188 42500 0.36 5500 131
65.883 50.800 120.250 43.658 190000 1.67
2.6250 4.0635 0.6930 15300 0.49 L812100 169
66.675 103.213 17.602 68000 1.23
2.6250 2.3622 4.2500 1.0000 20500 0.46 29500 135
66.675 60.000 107.950 25.400 91500 1.31
2.6250 2.0000 4.3301 1.1713 25300 0.40 3900 130
66.675 50.800 109.985 29.750 113000 1.49
2.6250 2.0000 4.4375 1.1875 31000 0.34 39500 137
66.675 50.800 112.712 30.162 138000 1.77
2.6250 2.3750 4.8125 1.5000 42000 0.34 HM212000 153
66.675 60.325 122.238 38.100 186000 1.78
2.6250 2.1679 5.3447 2.1250 59000 0.32 6300 132
66.675 54.988 135.755 53.975 262000 1.85
2.6250 2.3750 6.0000 2.0750 61500 0.49 HH814500 170
66.675 60.325 152.400 52.705 275000 1.23
2.6250 2.5000 7.0000 2.2500 72000 0.80 HH914400 171
66.675 63.500 117.800 57.150 320000 0.75
* Radial load ratings are based on 500 hrs. L 10
Life @ 33 1 ⁄3 rpm
110