PRODUCTS
 
  Taper Roller Bearings
 

These specially designed Taper Roller bearings from Tata Bearings are built to take large axial forces and sustain large radial forces. In these separable roller bearings mounted in pairs with rolling elements and raceways tapered, the four basic components are the cone, cup, tapered rollers and cage. The cone, cage and tapered rollers together form the inner ring assembly, which is separable from the outer ring. To prevent concentrating of stress at the roller’s edges, the line contact between roller and raceway is modified by Tata Bearings by crowing both rollers and raceways.

This range of Tata Bearings is so designed that the extensions of raceway and roller, converge at a point on the axis of rotation. The tapered configuration facilitates the rolling motion of roller on raceway, and generates a ‘seating force’, pushing the roller against the large rib of the inner ring. This prevents the rollers from skewing off-apex, thereby always keeping them positively aligned and in contact with the inner ring rib.

These bearings can not only carry a combination of radial and thrust loads, the long-line contact between rollers and races enables them to carry high loads. Depending on the magnitude of the load to be carried, the contact angle of the bearings may be narrow or wide.

Taper Roller Bearings from Tata Bearings are being increasingly used in light, medium & heavy commercial vehicles, tractors, passenger cars – in the gear box, bevel pinion, front and rear wheels, water pump, etc.

Specifications

 

Tata Bearings
Bearings Symbol d D B C T r
(min)
r1
(min)
a Load Rating (daN) Max
Speed RPM
Dynamic (C) Static (Co)
30203 17 40 12 11 13.25 1 1 3.5 2080 1900 9800
30204 20 47 14 12 15.25 1 1 4 3100 3150 8400
30205 25 52 15 13 16.25

1

1 3.5 3600 3950 7500
30206 30 62 16 14 17.25 1 1 3.5 4600 4900 6300
30207 35 72 17 15 18.25 1.5 1.5 3 5800 6200 5300
30208 40 80 18 16 19.75 1.5 1.5 3 6000 6400 4800
30209 45 85 19 16 20.75 1.6 1.6 3 6700 7400 4300
30210 50 90 23 19 24.75 1.5 3 3.75 82500 100000 4300
30214 70 125 24 21 26.25 1.5 2 1 12000 14000 2800
30215 75 130 25 22 27.25 1.5 2 0.5 13600 16600 2700
                       
30302 15 42 13 11 14.25 1.0 1.5 4.57 2330 2070 9000
30305 25 62 17 15 18.25 1.5 1.5 5.5 4600 4300 6700
30306 30 72 19 16 20.75 1.5 1.5 4.5 5500 5200 5600
30308 40 90 23 20 25.25 1.5 2 5.45 8900 9600 4300
30312 60 130 31 26 33.5 2.5 3 7.5 15000 16000 2900
                       
31312 59.985 34.983 30.925 21.948 33.449 3.5 3.5 7 152000 172000 3200
                       
32207 35 72 23 19 24.25 1.5 1.5 6 7000 8000 5300
32208 40 80 23 19 24.75 1.5 1.5 5 7800 8800 4800
32210 50 90 23 19 24.75 1.5 1.5 4 9300 11300 4000
32211 55 100 25 21 26.75 1.5 2 3 10650 13140 3600
32212 60 110 28 24 29.75 1.5 2 5.75 12720 16030 3400
32213 65 120 31 27 32.75 0.8 3.5 5 15550 19550 3200
32214 70 125 31 27 33.25 1.5 2 5.25 15770 20760 3800
32216 80 140 33 28 35.25 2 2.5 4.5 17700 21900 2500
32217 85 150 36 30 38.5 2 2.5 3.5 21500 28500 2400
32307 35 80 31 25 32.75 1.5 2 12.5 10000 10800 5000
32308 40 90 33 27 35.25 1.5 2 11.7 11500 13300 4300
32309 45 100 36 30 38.25 1.5 2 10.5 14200 17700 3900
32312 60 130 46 37 48.5 2.5 3 16 22300 27000 2900
                       
33010 50 80 24 19 B 1 2.1 7 7150 10250 5300
33111 55 95 30 23 30 1.6 1.6 8 11300 15500 3800
                       
418/414 38.1 88.501 29.083 22.225 26.988 1.5 3.6 10.1 10300 11500 4800
565/562 63.5 130 33.937 28 36.937 3.5 6.5 8.937 19000 22430 3400
580/572 82.55 139.992 36.098 28.575 36.512 3.3 3.6 5.2 17600 22000 2400
683/672 95.25 168.275 41.275 30.162 41.275 3.3 3.5 6.275 23400 36600 2800
11590/11520 15.875 42.863 14.288 9.525 14.288 1.6 1.6 1.28 1570 1600 8500
15123/15245 31.75 62 19.05 14.288 18.161 1.3 4 6 4850 5750 6000
1988/1922 28.575 57.15 19.355 15.875 19.845 1.5 3.5 5.845 4800 5600 6700
25877/25821 34.925 73.025 24.608 19.05 23.812 0.8 1.5 8.812 7210 8800 5300
02872/02820 28.575 73.025 22.225 17.462 22.225 3.2 0.8 4 5400 6400 -
47487T/
47420T
69.863 120 32.6 26.25 32.545 0.8 3.5 7.1 15700 23000 -
LM501349/
LM501310
41.275 73.431 19.812 14.732 19.558 0.8 3.5 2.758 5590 7000 4800
LM48548/
LM48510
34.925 65.088 18.288 13.97 18.034 1.3 3.6 4 4250 5550 5600
LM603049/
LM603012
45.242 77.788 19.842 16.667 21.43 0.8 3.5 - 5450 6900 -
M86649/
M86610
30.162 64.292 21.48 16.67 21.433 1.5 1.5 3.433 4950 6100 6000
M88048/
M88010
33.338 68.262 22.225 17.462 22.225 1.5 0.8 3.225 5500 6950 4600
M802048/
M802011
41.275 82.55 26.543 20.193 26.543 3.3 3.5 4.543 7500 9500 4500

INDEX : d - Bore Diameter, D - Outer Diameter, B - Bearing Width, r - Corner Radius, RPM - Revolution / Minute