Timken Super Precision Bearings for Machine Tool Applications

ENGINEERING
A
PRECISION CLASS TAPERED ROLLER BEARINGS (EXCEPT HYDRA-RIB AND TXR BEARINGS)
SUGGESTED FITTING GUIDELINES FOR FERROUS SHAFT AND HOUSING
For heavy loads, high speed or shock, contact your Timken representative for further information.
HOUSING BORE METRIC BEARINGS
ISO + J Prefix
Deviation from nominal (maximum) bearing
O.D. and resultant fit
T= Tight
L = Loose
Deviation from nominal (minimum) bearing
O.D. and resultant fit
T= Tight
L = Loose
HOUSING BORE INCH BEARINGS
Bearing O.D.
Range Tolerance Non-adjustable
or in carrier
Over Incl. Symbol
mm
in.
Over
mm
in.
mm
in.
Bearing O.D. Class 3 and 0 (1)
Range Tolerance Non-adjustable
Floating
or in carrier
Incl.
mm
in.
mm
in.
mm
in.
Housing
bore
Resultant
deviation
fi t
mm
in.
Housing
bore
deviation
mm
in.
mm
in.
Resultant
fi t
mm
in.
Symbol
Class C
Floating
Housing
bore
Resultant
deviation
fi t
Housing bore
deviation
mm
in.
Resultant
fi t
mm
in.
Symbol
Housing
bore
deviation
mm
in.
Adjustable
Housing
bore
Resultant
deviation
fi t
18.000 30.000 0.000 N5 -0.021 0.021T G5 +0.007 0.007L K5 -0.008 0.008T
-0.008 -0.012 0.004T +0.016 0.024L +0.001 0.009L
0.7087 1.1811 0.0000 -0.0008 0.0008T +0.0003 0.0003L -0.0003 0.0003T
-0.0003 -0.0004 0.0002T +0.0006 0.0009L +0.00004 0.0004L
30.000 50.000 0.000 N5 -0.024 0.024T G5 +0.009 0.009L K5 -0.009 0.009T
-0.009 -0.013 0.004T +0.020 0.029L +0.002 0.011L
1.1811 1.9685 0.0000 -0.0009 0.0009T +0.00035 0.0004L -0.0004 0.0003T
-0.0004 -0.0005 0.0002T +0.0008 0.0011L +0.0001 0.0004L
50.000 80.000 0.000 N5 -0.028 0.028T G5 +0.010 0.010L K5 -0.010 0.010T
-0.011 -0.015 0.004T +0.023 0.034L +0.003 0.014L
1.9685 3.1496 0.0000 -0.0011 0.0011T +0.0004 0.0004L -0.0004 0.0004T
-0.00045 -0.0006 0.0002T +0.0009 0.0013L +0.0001 0.0006L
80.000 120.000 0.000 N5 -0.033 0.033T G5 +0.012 0.012L K5 -0.013 0.013T
-0.013 -0.018 0.005T +0.027 0.040L +0.002 0.015L
3.1496 4.7244 0.0000 -0.0013 0.0013T +0.0005 0.0008L '-0.0005 0.0005T
-0.0005 -0.0007 0.0002T +0.0011 0.0016L +0.0001 0.0006L
120.000 150.000 0.000 N5 -0.039 0.039T G5 +0.014 0.014L K5 -0.015 0.015T
-0.015 -0.021 0.006T +0.032 0.047L +0.003 0.018L
4.7244 5.9055 0.0000 -0.0015 0.0015T +0.0006 0.0006L -0.0006 0.0006T
-0.0006 -0.0008 0.0002T +0.0013 0.0019L +0.0001 0.0007L
150.000 180.000 0.000 N5 -0.039 0.039T G5 +0.014 0.014L K5 -0.015 0.015T
-0.018 -0.021 0.003T +0.032 0.050L +0.003 0.021L
5.9055 7.0866 0.0000 -0.0015 0.0015T +0.0006 0.0006L -0.0006 0.0006T
-0.0007 -0.0008 0.0001T +0.0013 0.0020T +0.0001 0.0008L
180.000 250.000 0.000 N5 -0.045 0.045T G5 +0.015 0.015L K5 -0.018 0.018T
-0.020 -0.025 0.005T +0.035 0.055L +0.002 0.027L
7.0866 9.8425 0.0000 -0.0018 0.0018T +0.0006 0.0006L -0.0007 0.0007T
-0.0008 -0.0010 0.0002T +0.0014 0.0022L +0.0001 0.0011L
250.000 315.000 0.000 N5 -0.050 0.050T G5 +0.017 0.017L K5 -0.020 0.020T
-0.025 -0.027 0.002T +0.040 0.065L +0.003 0.028L
9.8425 12.4016 0.0000 -0.0020 0.0020T +0.0007 0.0007L -0.0008 0.0008T
-0.0010 -0.0011 0.0001T +0.0016 0.0023L +0.0001 0.0011L
Adjustable
Resultant
fi t
– 152.400 +0.013 -0.013 0.026T +0.025 0.012L 0.000 0.013T
0.000 0.000 0.000 +0.038 0.038L +0.013 0.013L
– 6.0000 +0.0005 -0.0005 0.0010T +0.0010 0.0005L 0.000 0.0005T
0.0000 0.0000 0.0000 +0.0015 0.0015L +0.0005 0.0005L
152.400 304.800 +0.013 -0.025 0.038T +0.025 0.012L 0.000 0.013T
0.000 0.000 0.000 +0.038 0.038L +0.025 0.025L
6.0000 12.0000 +0.0005 -0.0010 0.0015T +0.0010 0.0005L 0.0000 0.0005T
0.0000 0.0000 0.0000 +0.0015 0.0015L +0.0010 0.0010L
304.800 609.600 +0.025 -0.025 0.050T +0.038 0.013L 0.000 0.025T
0.000 0.000 0.000 +0.064 0.064L +0.025 0.025L
12.0000 24.0000 +0.0010 -0.0010 0.0020T +0.0015 0.0005L 0.0000 0.0010T
0.0000 0.0000 0.0000 +0.0025 0.0025L +0.0010 0.0010L
609.600 914.400 +0.038 -0.038 0.076T +0.051 0.013L .0000 0.038T
0.000 0.000 0.000 +0.089 0.089L +0.038 0.038L
24.0000 36.0000 +0.0015 -0.0015 0.0030T +0.0020 0.0005L 0.0000 0.0015T
0.0000 0.0000 0.0000 +0.0035 0.0035L +0.0015 0.0015L
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
(1)Class O made only to 304.800 mm (12.0000 in.) O.D.
82 TIMKEN MACHINE TOOL CATALOG