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 DimensionsPreferred Shoulder Diameters
dDTBCR
(min shaft fillet)
r
(min shaft fillet)
da (min)db (max)Da (max)
mm inchmm inchmm inchmm inchmm inchmm inchmm inchmm inchmm inchmm inch
LM11749/
LM11710
17.462039.878013.843014.60510.6881.3001.30021.50021.60037.100
0.68751.57000.54500.5750.4200.0500.0500.8460.8501.460
LM11949/19.050045.237015.494016.637012.06501.3001.30023.50023.60041.400
LM119100.75001.78100.61000.65500.47500.0500.0500.9250.9301.630
M12649/21.430050.005017.526018.288013.97001.3001.30025.50025.40046.000
M126100.84371.96870.69000.72000.55000.0500.0501.0041.0001.810
M12649A/21.430050.005017.026117.788013.47001.3001.30025.50025.40046.000
M126100.84371.96870.67030.70000.53000.0500.0501.0041.0001.810
LM12749/21.986045.237015.494016.637012.06501.3001.30027.50025.90041.400
LM127100.86561.78100.61000.65500.47500.0500.0501.1831.0201.630
LM12749/21.986045.974015.494016.637012.06501.3001.30026.00025.90042.400
LM127110.86561.81000.61000.65500.47500.0500.0501.0241.0201.670
L44643/25.400050.292014.224014.732010.66801.3001.30029.50029.50047.000
L446101.00001.98000.56000.58000.42000.0500.0501.1611.1601.850
L44649/26.988050.292014.224014.732010.66803.5001.30031.00031.00047.000
L446101.06251.98000.56000.58000.42000.1400.0501.2201.2201.850
L45449/29.000050.292014.224014.732010.66803.5001.30033.00033.00048.000
L454101.14171.98000.56000.58000.42000.1400.0501.2991.3001.890
LM67048/31.750059.131015.875016.764011.81101.30036.00036.10055.900
LM670101.25002.32800.62500.66000.46500.0501.4171.4202.200
LM48548/34.925065.088018.034018.288013.97001.30040.00039.90061.000
LM485101.37502.56250.71000.72000.55000.0501.5751.5702.400
L68149/34.988059.131015.875016.764011.93801.30045.50039.10055.900
L681101.37752.32800.62500.66000.47000.0501.7911.5402.200
L68149/34.988059.974015.875016.764011.93801.30039.00039.10055.900
L681111.37752.36120.62500.66000.47000.0501.5351.5402.200
JL69349/38.000063.000017.000017.000013.50001.30042.50041.40061.200
JL693101.49612.48030.66930.66930.53150.0501.6731.6302.410
LM78349/34.988061.973016.700017.000013.60001.50046.00040.00054.000
LM783101.37752.43990.65750.66930.53540.0591.8111.5752.126
JL68145/34.988059.974015.875018.461011.93801.30045.50039.00053.000
JL681111.37742.36120.62500.72680.47000.5121.7911.5352.087
32901329.0000
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
ConstantAxial
load factors
Limiting Speeds
(1000 RPM)
Bearing Weight
(Approx.)
Cr
KN
Cor
KN
a
mm
eY2Y0Grease
rpm
Oil
rpm
Weight
Ibskg
LM11749/
LM11710
23.824.25.10.292.101.1510000130000.1850.084
LM11949/
LM11910
28.528.95.60.302.001.109000120000.2680.122
M12649/
M12610
38.540.06.40.282.161.198000110000.3720.169
M12649A/
M12610
37.640.86.40.282.161.198000110000.3600.163
LM12749/
LM12711
29.634.05.30.311.961.088500110000.2710.123
LM12749/
LM12711
29.634.05.30.311.961.088400110000.2710.123
L44643/
L44610
28.834.03.30.371.600.887400100000.2860.130
L44649/
L44610
28.834.03.30.371.600.887400100000.2640.120
L45449/
L45410
28.035.53.50.371.620.89720096000.2510.114
LM67048/
LM67010
34.541.53.80.411.460.80630085000.4000.182
LM48548/
LM48510
47.547.53.10.381.590.88570076000.5480.249
L68149/
L68110
35.547.52.50.421.440.79600080000.3850.175
L68149/
L68111
35.547.52.50.421.440.79610081000.4030.183
JL69349/
JL69310
38.552.52.30.421.440.79570076000.4360.198
LM78349/
LM78310
38.050.014.40.441.400.74560080000.6030.204
JL68145/
JL68111
35.047.013.20.421.400.79600080000.4060.184
32901326.834.010.80.371.60.8914000170000.2560.116

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