Timken Super Precision Bearings for Machine Tool Applications

Ball Bearings
WI CONSTRUCTION
• Incorporates low shoulder on non-thrust side of outer rings.
• Balls separated by one-piece cage piloted against a ground
thrust shoulder land of the outer ring.
2
Max. Min. Max. Min. Max. Min. Loose Tight Max. Min. Tight Loose Max. Min. Loose Loose
Suggested Shoulder Diameters Shaft Diameter Mounting Fits
Housing Bore
Housing Bore
Mounting Fits
Shaft
Housing
(Stationary)
(Stationary)
r
Rad. (2) Mounting Fits
mm/in. mm/in. mm/in. mm/in. mm/in. mm/in. mm/in. mm/in. mm/in.
0.3 13.2 13.0 19.6 19.3 10.000 9.995 0.005 0.004 22.005 22.000 0.000 0.010 22.010 22.005 0.015 0.005
0.012 0.52 0.51 0.77 0.76 0.39370 0.39350 0.00020 0.00015 0.86630 0.86610 0.00000 0.00040 0.86650 0.86630 0.00060 0.00020
0.3 15.2 14.9 21.6 21.3 12.000 11.995 0.005 0.004 24.005 24.000 0.000 0.010 24.010 24.005 0.015 0.005
0.012 0.60 0.59 0.85 0.84 0.47240 0.47220 0.00020 0.00015 0.94510 0.94490 0.00000 0.00040 0.94530 0.94510 0.00060 0.00020
0.3 18.3 18.1 25.5 25.2 15.000 14.995 0.005 0.004 28.005 28.000 0.000 0.010 28.010 28.005 0.015 0.005
0.012 0.72 0.71 1.00 0.99 0.59060 0.59040 0.00020 0.00015 1.02380 1.02360 0.00000 0.00040 1.02400 1.02380 0.00060 0.00020
0.3 20.3 20.0 27.5 27.2 17.000 16.995 0.005 0.004 30.005 30.000 0.000 0.010 30.010 30.005 0.015 0.005
0.012 0.80 0.79 1.08 1.07 0.66930 0.66910 0.00020 0.00015 1.18130 1.18110 0.00000 0.00040 1.18150 1.18130 0.00060 0.00020
0.3 24.1 23.9 33.7 33.4 20.000 19.995 0.005 0.005 37.006 37.000 0.000 0.012 37.010 37.005 0.016 0.005
0.012 0.95 0.94 1.33 1.32 0.78740 0.78720 0.00020 0.00020 1.45700 1.45670 0.00000 0.00050 1.45710 1.45690 0.00070 0.00020
0.3 29.1 28.9 38.7 38.4 25.000 24.995 0.005 0.005 42.006 42.000 0.000 0.012 42.010 42.005 0.016 0.005
0.012 1.15 1.14 1.52 1.51 0.98430 0.98410 0.00020 0.00020 1.65380 1.65350 0.00000 0.00050 1.65390 1.65370 0.00070 0.00020
0.3 34.1 33.9 43.7 43.4 30.000 29.995 0.005 0.005 47.006 47.000 0.000 0.012 47.012 47.007 0.018 0.007
0.012 1.34 1.33 1.72 1.71 1.18110 1.18090 0.00020 0.00020 1.85070 1.85040 0.00000 0.00050 1.85090 1.85070 0.00080 0.00030
0.6 40.0 39.5 51.1 50.6 35.000 34.995 0.005 0.006 55.008 55.000 0.000 0.015 55.012 55.007 0.019 0.007
0.024 1.57 1.55 2.01 1.99 1.37800 1.37780 0.00020 0.00025 2.16570 2.16540 0.00000 0.00060 2.16590 2.16570 0.00080 0.00030
0.6 45.1 44.6 57.9 57.4 40.000 39.995 0.005 0.006 62.008 62.000 0.000 0.015 62.012 62.007 0.019 0.007
0.024 1.78 1.76 2.28 2.26 1.57480 1.57460 0.00020 0.00025 2.44120 2.44090 0.00000 0.00060 2.44140 2.44120 0.00080 0.00030
0.6 50.7 50.1 63.4 62.9 45.000 44.995 0.005 0.006 68.008 68.000 0.000 0.015 68.012 68.007 0.019 0.007
0.024 1.99 1.97 2.50 2.48 1.77170 1.77150 0.00020 0.00025 2.67750 2.67720 0.00000 0.00060 2.67770 2.67750 0.00080 0.00030
0.6 55.1 54.6 67.9 67.4 50.000 49.995 0.005 0.006 72.008 72.000 0.000 0.015 72.011 72.007 0.019 0.007
0.024 2.17 2.15 2.67 2.65 1.96850 1.96830 0.00020 0.00025 2.83490 2.83460 0.00000 0.00060 2.83510 2.83490 0.00080 0.00030
1.0 60.9 60.4 75.2 74.7 55.000 54.995 0.005 0.007 80.008 80.000 0.000 0.015 80.012 80.008 0.020 0.008
0.039 2.40 2.38 2.96 2.94 2.16540 2.16520 0.00020 0.00030 3.14990 3.14960 0.00000 0.00060 3.15010 3.14990 0.00080 0.00030
1.0 65.8 65.3 80.2 79.7 60.000 59.995 0.005 0.007 85.008 85.000 0.000 0.016 85.016 85.009 0.024 0.009
0.039 2.59 2.57 3.16 3.14 2.36220 2.36200 0.00020 0.00030 3.34680 3.34650 0.00000 0.00060 3.34710 3.34680 0.00090 0.00030
1.0 70.8 70.3 85.2 84.7 65.000 64.995 0.005 0.007 90.008 90.000 0.000 0.016 90.015 90.007 0.023 0.007
0.039 2.79 2.77 3.35 3.33 2.55910 2.55890 0.00020 0.00030 3.54360 3.54330 0.00000 0.00060 3.54390 3.54360 0.00090 0.00030
1.0 76.8 76.3 94.3 93.8 70.000 69.995 0.005 0.007 100.008 100.000 0.000 0.016 100.018 100.010 0.025 0.010
0.039 3.02 3.00 3.71 3.69 2.75590 2.75570 0.00020 0.00030 3.93730 3.93700 0.00000 0.00060 3.93770 3.93740 0.00100 0.00040
1.0 81.9 81.1 99.4 98.6 75.005 74.995 0.005 0.012 105.008 105.000 0.000 0.016 105.019 105.011 0.026 0.011
0.039 3.22 3.19 3.91 3.88 2.95300 2.95260 0.00020 0.00050 4.13420 4.13390 0.00000 0.00060 4.13460 4.13430 0.00100 0.00040
1.0 86.9 86.1 104.4 103.6 80.005 79.995 0.005 0.012 110.008 110.000 0.000 0.016 110.018 110.010 0.025 0.010
0.039 3.42 3.39 4.11 4.08 3.14980 3.14940 0.00020 0.00050 4.33100 4.33070 0.00000 0.00060 4.33140 4.33110 0.00100 0.00040
1.0 93.6 92.8 112.7 111.9 85.005 84.995 0.005 0.012 120.008 120.000 0.000 0.016 120.018 120.010 0.025 0.010
0.039 3.69 3.66 4.44 4.41 3.34670 3.34630 0.00020 0.00050 4.72470 4.72440 0.00000 0.00060 4.72510 4.72480 0.00100 0.00040
1.0 97.8 97.0 118.5 117.7 90.005 89.995 0.005 0.013 125.008 125.000 0.000 0.017 125.021 125.011 0.030 0.011
0.039 3.85 3.82 4.66 4.63 3.54350 3.54310 0.00020 0.00050 4.92160 4.92130 0.00000 0.00070 4.92210 4.92170 0.00120 0.00040
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FIXED
FLOATING
C
TIMKEN MACHINE TOOL CATALOG 143