Timken Super Precision Bearings for Machine Tool Applications

SUPER PRECISION
TSHR STYLE – continued
HYDRA-RIB AND SPRING-RIB
C
T 1
B
Timken Hydra-Rib Bearing
• Precision metric bearing available in any precision class.
• Floating outer ring rib maintains preload using fluid pressure.
• Unique design allows for thermal expansion of spindle while maintaining
desired preload.
• Ideal choice for floating position bearing set.
• Only minor modifications needed on existing spindles to install.
• Speed ratings for Hydra-Rib and Spring-Rib bearings are significantly higher
than standard ribbed-cone designs. Consult the Engineering Section for
greater detail, or contact your Timken representative.
D 1
r
a
C 1
R
d
D
d
Bore
mm
in.
D 1
Flange Dia.
mm
in.
D
Seat Dia.
mm
in.
T 1
Width
mm
in.
C 90
Load Ratings (2)
kN
lbs.
C
Cup Width
mm
in.
C 1
Seat Width
130.000 200.000 190.000 29.000 49.9 72.000 12.000 -7.6
mm
in.
a
Eff. Center (1)
5.1181 7.8740 7.4803 1.1417 11200 2.8346 0.4724 -0.30
135.000 213.000 205.000 27.000 50.6 72.000 13.000 -15.8
5.3150 8.3858 8.0709 1.0630 11400 2.8346 0.5118 -0.62
140.000 213.000 205.000 27.000 50.6 72.000 13.000 -3.8
5.5118 8.3858 8.0709 1.0630 11400 2.8346 0.5118 -0.15
155.000 235.000 227.000 30.000 60.9 76.000 15.000 -5.1
6.1024 9.2520 8.9370 1.1811 13700 2.9921 0.5906 -0.20
160.000 235.000 227.000 30.000 60.9 79.000 15.000 -5.1
6.2992 9.2520 8.9370 1.1811 13700 3.1102 0.5906 -0.20
170.000 248.000 240.000 30.000 62.9 79.000 15.000 -4.8
6.6929 9.7638 9.4488 1.1811 14100 3.1102 0.5906 -0.19
180.000 268.000 260.000 30.000 63.6 84.000 15.000 -1.8
7.0866 10.5512 10.2362 1.1811 14300 3.3071 0.5906 -0.07
200.000 290.000 282.000 32.000 74.6 83.000 17.000 -0.8
7.8740 11.4173 11.1024 1.2598 16800 3.2677 0.6693 -0.03
220.000 316.000 308.000 32.000 80.8 83.000 17.000 -5.3
8.6614 12.4409 12.1260 1.2598 18200 3.2677 0.6693 -0.21
270.000 385.000 375.000 40.000 114.0 105.000 20.000 0.0
10.6299 15.1575 14.7638 1.5748 25700 4.1339 0.7874 0.00
285.750 385.000 375.000 40.000 114.0 105.000 20.000 0.0
11.2500 15.1575 14.7638 1.5748 25700 4.1339 0.7874 0.00
(1) Negative value indicates effective center within the width of the inner ring.
(2) The Timken Company life calculations based on 90 million revolutions for L 10 life.
mm
in.
124 TIMKEN MACHINE TOOL CATALOG