Inch tapered roller bearings manufacturer

Inch tapered roller bearings

What is Inch tapered roller bearings

The structure and assembly dimension precision and rotation precision of the Inch tapered roller bearings are different from that of the metric bearings. An industry that is used for import machinery or special needs. The British conical roller bearing is a cone roller bearing, which is measured in inches and in inches. It is derived from the British and American countries.
Structural form: single column diallel four columns

Basic
Bearing
No.
Nominal Bearing Dimensions Preferred Shoulder Diameters
d D T B C R
(min shaft fillet)
r
(min shaft fillet)
da (min) db (max) Da (max)
mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch
LM11749/
LM11710
17.4620 39.8780 13.8430 14.605 10.688 1.300 1.300 21.500 21.600 37.100
0.6875 1.5700 0.5450 0.575 0.420 0.050 0.050 0.846 0.850 1.460
LM11949/ 19.0500 45.2370 15.4940 16.6370 12.0650 1.300 1.300 23.500 23.600 41.400
LM11910 0.7500 1.7810 0.6100 0.6550 0.4750 0.050 0.050 0.925 0.930 1.630
M12649/ 21.4300 50.0050 17.5260 18.2880 13.9700 1.300 1.300 25.500 25.400 46.000
M12610 0.8437 1.9687 0.6900 0.7200 0.5500 0.050 0.050 1.004 1.000 1.810
M12649A/ 21.4300 50.0050 17.0261 17.7880 13.4700 1.300 1.300 25.500 25.400 46.000
M12610 0.8437 1.9687 0.6703 0.7000 0.5300 0.050 0.050 1.004 1.000 1.810
LM12749/ 21.9860 45.2370 15.4940 16.6370 12.0650 1.300 1.300 27.500 25.900 41.400
LM12710 0.8656 1.7810 0.6100 0.6550 0.4750 0.050 0.050 1.183 1.020 1.630
LM12749/ 21.9860 45.9740 15.4940 16.6370 12.0650 1.300 1.300 26.000 25.900 42.400
LM12711 0.8656 1.8100 0.6100 0.6550 0.4750 0.050 0.050 1.024 1.020 1.670
L44643/ 25.4000 50.2920 14.2240 14.7320 10.6680 1.300 1.300 29.500 29.500 47.000
L44610 1.0000 1.9800 0.5600 0.5800 0.4200 0.050 0.050 1.161 1.160 1.850
L44649/ 26.9880 50.2920 14.2240 14.7320 10.6680 3.500 1.300 31.000 31.000 47.000
L44610 1.0625 1.9800 0.5600 0.5800 0.4200 0.140 0.050 1.220 1.220 1.850
L45449/ 29.0000 50.2920 14.2240 14.7320 10.6680 3.500 1.300 33.000 33.000 48.000
L45410 1.1417 1.9800 0.5600 0.5800 0.4200 0.140 0.050 1.299 1.300 1.890
LM67048/ 31.7500 59.1310 15.8750 16.7640 11.8110 1.300 36.000 36.100 55.900
LM67010 1.2500 2.3280 0.6250 0.6600 0.4650 0.050 1.417 1.420 2.200
LM48548/ 34.9250 65.0880 18.0340 18.2880 13.9700 1.300 40.000 39.900 61.000
LM48510 1.3750 2.5625 0.7100 0.7200 0.5500 0.050 1.575 1.570 2.400
L68149/ 34.9880 59.1310 15.8750 16.7640 11.9380 1.300 45.500 39.100 55.900
L68110 1.3775 2.3280 0.6250 0.6600 0.4700 0.050 1.791 1.540 2.200
L68149/ 34.9880 59.9740 15.8750 16.7640 11.9380 1.300 39.000 39.100 55.900
L68111 1.3775 2.3612 0.6250 0.6600 0.4700 0.050 1.535 1.540 2.200
JL69349/ 38.0000 63.0000 17.0000 17.0000 13.5000 1.300 42.500 41.400 61.200
JL69310 1.4961 2.4803 0.6693 0.6693 0.5315 0.050 1.673 1.630 2.410
LM78349/ 34.9880 61.9730 16.7000 17.0000 13.6000 1.500 46.000 40.000 54.000
LM78310 1.3775 2.4399 0.6575 0.6693 0.5354 0.059 1.811 1.575 2.126
JL68145/ 34.9880 59.9740 15.8750 18.4610 11.9380 1.300 45.500 39.000 53.000
JL68111 1.3774 2.3612 0.6250 0.7268 0.4700 0.512 1.791 1.535 2.087
329013 29.0000
1.1417
50.2920
1.9800
14.2240
0.5600
17.6000
0.6929
10.6680
0.4200
3.500
0.138
1.3000
0.0512
39.500
1.555
33.000
1.299
44.500
1.752

NOTES:
1) These maximum fillet radii will be cleared by the bearing corners. 2) Minus value indicate center is inside cone backface. 3) Please refer to the picture above for the size of the leading angle marked with star.

Other Parameters

Equivalent bearing load dynamic: Pr= XFr + YFa

static: Por = 0.5Fr + YoFa When Por < Fr use Por = Fr For values of e, Y2 and Yo see the table below.

Basic
Bearing
No.
Basic Load
Ratings
Effective
load center
Constant Axial
load factors
Limiting Speeds
(1000 RPM)
Bearing Weight
(Approx.)
Cr
KN
Cor
KN
a
mm
e Y2 Y0 Grease
rpm
Oil
rpm
Weight
Ibs kg
LM11749/
LM11710
23.8 24.2 5.1 0.29 2.10 1.15 10000 13000 0.185 0.084
LM11949/
LM11910
28.5 28.9 5.6 0.30 2.00 1.10 9000 12000 0.268 0.122
M12649/
M12610
38.5 40.0 6.4 0.28 2.16 1.19 8000 11000 0.372 0.169
M12649A/
M12610
37.6 40.8 6.4 0.28 2.16 1.19 8000 11000 0.360 0.163
LM12749/
LM12711
29.6 34.0 5.3 0.31 1.96 1.08 8500 11000 0.271 0.123
LM12749/
LM12711
29.6 34.0 5.3 0.31 1.96 1.08 8400 11000 0.271 0.123
L44643/
L44610
28.8 34.0 3.3 0.37 1.60 0.88 7400 10000 0.286 0.130
L44649/
L44610
28.8 34.0 3.3 0.37 1.60 0.88 7400 10000 0.264 0.120
L45449/
L45410
28.0 35.5 3.5 0.37 1.62 0.89 7200 9600 0.251 0.114
LM67048/
LM67010
34.5 41.5 3.8 0.41 1.46 0.80 6300 8500 0.400 0.182
LM48548/
LM48510
47.5 47.5 3.1 0.38 1.59 0.88 5700 7600 0.548 0.249
L68149/
L68110
35.5 47.5 2.5 0.42 1.44 0.79 6000 8000 0.385 0.175
L68149/
L68111
35.5 47.5 2.5 0.42 1.44 0.79 6100 8100 0.403 0.183
JL69349/
JL69310
38.5 52.5 2.3 0.42 1.44 0.79 5700 7600 0.436 0.198
LM78349/
LM78310
38.0 50.0 14.4 0.44 1.40 0.74 5600 8000 0.603 0.204
JL68145/
JL68111
35.0 47.0 13.2 0.42 1.40 0.79 6000 8000 0.406 0.184
329013 26.8 34.0 10.8 0.37 1.6 0.89 14000 17000 0.256 0.116

☆We reserve the right to change specifications and other information included in this catalogue without notice.