Timken Super Precision Bearings for Machine Tool Applications

SUPER PRECISION
TS STYLE
PRECISION LEVEL 3 (1)
r
C
T
B
Dimensional Sizes – INCH
• Features to enhance spindle operation:
• Matched components.
• Runout high points marked.
• Bearing setting adjustment.
• Performance options:
• High-speed version (TSMA).
D D b
d a
R
B d
a
d b
D a
d
Bore
mm
in.
D
O.D.
mm
in.
T
Width
mm
in.
C o
Static
kN
lbs.
Load Ratings
C 1
Dynamic (3) C 90
Dynamic (4)
kN
lbs.
kN
lbs.
C a90
Dynamic (4)
kN
lbs.
B
Cone Width
mm
in.
C
Cup Width
mm
in.
a
Eff. Center (2)
mm
in.
Inner-Outer
Part Number
63.500 107.950 25.400 158.0 102.0 26.5 20.8 25.400 19.050 -0.8 29585-29520
2.5000 4.2500 1.0000 35500 22900 5950 4670 1.0000 0.7500 -0.03
68.263 110.000 21.999 126.0 91.6 23.8 16.3 21.996 18.821 -0.8 399A-394A
2.6875 4.3307 0.8661 28300 20600 5340 3670 0.8660 0.7410 -0.03
73.025 112.713 25.400 166.0 102.0 26.5 22.2 25.400 19.050 1.0 29685-29620
2.8750 4.4375 1.0000 37300 23000 5960 4980 1.0000 0.7500 0.04
76.200 121.442 24.608 137.0 94.7 24.5 18.9 23.012 17.625 1.5 34301-34478
3.0000 4.7812 0.9688 30800 21300 5510 4260 0.9060 0.6875 0.06
85.725 136.525 30.163 216.0 143.0 37.1 28.2 29.769 22.225 -0.8 497-493
3.3750 5.3750 1.1875 48500 32100 8330 6340 1.1720 0.8750 -0.03
91.973 142.875 30.000 240.0 152.0 39.3 32.2 30.000 21.996 1.8 LM718947-LM718910
3.6210 5.6250 1.1811 54000 34100 8830 7230 1.1811 0.8660 0.07
101.600 157.163 36.513 343.0 207.0 53.8 43.6 36.116 26.187 -0.5 52400-52618
4.0000 6.1875 1.4375 77100 46500 12100 9800 1.4219 1.0310 -0.02
117.475 180.975 34.925 271.0 181.0 47.2 39.9 31.750 25.400 5.3 68462-68712
4.6250 7.1250 1.3750 60900 40700 10600 8980 1.2500 1.0000 0.21
146.050 193.675 28.575 407.0 182.0 47.2 29.8 28.575 23.012 4.8 36690-36620
5.7500 7.6250 1.1250 91500 40900 10600 6690 1.1250 0.9060 0.19
177.800 227.013 30.163 470.0 194.0 50.3 37.9 30.163 23.012 12.7 36990-36920
7.0000 8.9375 1.1875 105600 43500 11300 8510 1.1875 0.9060 0.50
190.500 282.575 50.800 690.0 398.0 103.0 73.4 47.625 36.500 3.8 87750-87111
7.5000 11.1250 2.0000 155100 89400 23200 16500 1.8750 1.4370 0.15
206.375 282.575 46.038 881.0 393.0 102.0 88.5 46.038 36.500 16.0 67985-67920
8.1250 11.1250 1.8125 198000 88300 22900 19900 1.8125 1.4370 0.63
215.900 290.010 31.750 457.0 222.0 57.4 37.9 31.750 22.225 13.0 543085-543114
8.5000 11.4177 1.2500 102700 49800 12900 8510 1.2500 0.8750 0.51
(1) Tighter tolerances are possible on any of the part numbers shown for higher precision requirements.
(2) Negative value indicates effective center within the backface of the cone.
(3) The Timken Company calculation based on one million revolutions for L 10 life.
(4) The Timken Company life calculations based on 90 million revolutions for L 10 life. C 90 is radial load component force; C a90 is axial component.
(5) For synthetic high-speed grease in appropriate fill quantities with service interval and appropriate setting. Other methods may further improve speed by as much as 60 percent or more.
(6) For explanation of spindle system characteristics, please refer to pages 31-34 of the Engineering Section.
114 TIMKEN MACHINE TOOL CATALOG