Site: Home > Products > Tapered Roller Bearings > Double-row Tapered Roller Bearings (TDO Type) > Double-row Tapered Roller Bearings (TDO Type)

Tapered roller bearings are designed so the tapered vertex of the raceway surfaces of the inner and outer rings and rollers converge at one point on the centerline of the bearing. Due to this design feature, rollers move along the center of the raceway surfaces. The tapered rollers are guided by the compound force of the inner and outer raceway surfaces which keep them pressed up against the large rib on the inner ring. A large veriety of these bearings, including single, double, and four row arrangements, are in use both in metric and inch series.
Four row tapered roller bearings are constructed of two double row inner rings and two double row outer rings. Life of large bearings is extended by using case hardened steel, hollow rollers and pin-type cages. Used primarily where heavy load capacity is important, and in the roller necks of rolling mills.

Please input product code:     Please input product size:d    D    B/H/T      
Designations d D B H T r min Dynamic(C) Static(Co) Grease Oil Weight(kg)
 77736  180  280  180    180  3  818  2490      39.6
 77740  200  310  200    200  3  950  1490      55.6
 2077140  200  310  275    275  3  1205  4120      75.1
 77741  205  320  205    205  4  1040  2793      55.4
 2077144  220  340  305    305  4  2245  5830      99.5
 2077148  240  360  310    310  4  3230  2210      90.5
 77750  250  460  270    270  5  2205  6270      792
 77752  260  400  225    225  3.7  1450  4850      117
 382052  260  400  345    345  5  2790  7540      161
 777752  260  440  300    300  2  2620  5730      182
 77756  280  420  250    250  5  1510  5200      119
 2077160  300  460  390    390  5  3770  10000      222
 77760  300  500  350    350  5  267  8720      280
 2077164  320  480  380    380  5  2940  11370      252
 2077968  340  460  310    310  4  2155  9120      147
 381068  340  520  325    325  5  3136  8040      247
 77872  360  400  375    375  4  2500  11560      197
 1077772  360  600  420    420  4.7  3870  13500      388
 7776  380  550  350    350  5  2440  9270      273
 3077776  380  620  388    388  6  3400  11370      443