The Timken Company - ADAPT™ Bearings

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The Timken® ADAPT™ bearing is designed specifically for continuous casters, where performance and reliability are critical to maintaining operations. The ADAPT™ bearing evolves traditional cylindrical and spherical roller bearing configurations into a new design so operators benefit from the key attributes of both types.

The bearing consists of an inner ring, outer ring and roller /retainer assembly. The retainer holds the rollers in position, creating a single assembly that prevents the rollers from being damaged during mounting and dismounting.

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Unit of Measure

Items	TA4026VC3 ADAPT™ Bearings	TA4028VC3 ADAPT™ Bearings	TA4030VC3 ADAPT™ Bearings	TA4034VC3 ADAPT™ Bearings	TA4020VC3 ADAPT™ Bearings
Design Units	N/A Metric
d - Bore	N/A 130 mm	N/A 140 mm	N/A 150 mm	N/A 170 mm	N/A 100 mm
D - Outer Diameter	N/A 200 mm7.874 in	N/A 210 mm8.2677 in	N/A 225 mm8.8583 in	N/A 260 mm10.2362 in	N/A 150 mm5.9055 in
C - Inner Ring Width	N/A 69 mm2.7165 in	N/A 69 mm2.7165 in	N/A 75 mm2.9528 in	N/A 90 mm3.5433 in	N/A 50 mm1.9685 in
B - Outer Ring Width	N/A 69 mm2.7165 in	N/A 69 mm2.7165 in	N/A 75 mm2.9528 in	N/A 90 mm3.5433 in	N/A 50 mm1.9685 in
DUR - Diameter Under Roller	N/A 147.8 mm5.8189 in	N/A 158 mm6.2205 in	N/A 169.3 mm6.6653 in	N/A 193.4 mm7.6142 in	N/A 112.8 mm4.4409 in
F - Float	N/A 6 mm0.2362 in	N/A 6 mm0.2362 in	N/A 6.4 mm0.2520 in	N/A 7.4 mm0.2913 in	N/A 6 mm0.2362 in
C0 - Static Radial Rating	N/A 1140000 N256000 lbf	N/A 1220000 N275000 lbf	N/A 1430000 N321000 lbf	N/A 1980000 N444000 lbf	N/A 575000 N129000 lbf
C - Dynamic Radial Rating¹	N/A 677000 N152000 lbf	N/A 698000 N157000 lbf	N/A 806000 N181000 lbf	N/A 1110000 N249000 lbf	N/A 349000 N78600 lbf
R - Inner Ring "To Clear" Radius²	N/A 1.8 mm0.071 in	N/A 1.8 mm0.071 in	N/A 1.9 mm0.075 in	N/A 1.9 mm0.075 in	N/A 1.3 mm0.051 in
r - Outer Ring "To Clear" Radius³	N/A 1.8 mm0.071 in	N/A 1.8 mm0.071 in	N/A 1.9 mm0.075 in	N/A 1.9 mm0.075 in	N/A 1.300 mm0.051 in
da - Inner Ring Backing Diameter	N/A 146 mm5.7480 in	N/A 156 mm6.1420 in	N/A 167 mm6.5750 in	N/A 191.5 mm7.5390 in	N/A 111 mm4.3700 in
Da - Outer Ring Backing Diameter	N/A 185 mm7.2830 in	N/A 195 mm7.6770 in	N/A 209 mm8.2280 in	N/A 240.5 mm9.4680 in	N/A 139.5 mm5.4920 in
Bearing Weight	N/A 8.1 Kg17.7 lb	N/A 8.6 Kg18.8 lb	N/A 10.7 Kg23.5 lb	N/A 17.8 Kg39.1 lb	N/A 3.2 Kg7 lb
Tapered Bore	N/A N
¹ Based on 10⁶ revolutions of calculated fatigue life. ² Maximum housing fillet radius that bearing corners will clear. ³ Maximum shaft fillet radius that bearing corners will clear.