Tapered Roller Bearings

TDI Type Double Row Inch Size Tapered Roller Bearings

TDI Type double row inch size tapered roller bearings are a common type of tapered roller bearings. TDI style consists of a single-piece (double) inner ring plus two single outer rings. It is usually supplied complete with an outer-ring spacer as a pre-set assembly. TDI double row inch tapered roller bearings can be used at fixed (locating) positions on rotating shaft applications. For revolving housing applications, the double inner ring of type TDI can be used to float on the stationary shaft.

As one of the leading tapered roller bearing manufacturers, suppliers, and exporters of mechanical products, We offer tapered roller bearing and many other products.Please get in touch with us for details.

Mail:[email protected]

TDI Type double row inch size tapered roller bearings are a common type of tapered roller bearings. TDI style consists of a single-piece (double) inner ring plus two single outer rings. It is usually supplied complete with an outer-ring spacer as a pre-set assembly. TDI double row inch tapered roller bearings can be used at fixed (locating) positions on rotating shaft applications. For revolving housing applications, the double inner ring of type TDI can be used to float on the stationary shaft.

Bearing Parameters

Bearing NO. Boundary dimensions
(mm)
Mass
(kg)
HEPT d D T B
14126D/14276 31.750 69.012 39.705 39.182 0.71
13169D/13318 42.862 80.962 34.925 31.750 0.77
13176D/13318 44.450 80.962 34.925 31.750 0.74
13182D/13318 46.037 80.962 34.925 31.750 0.73
375D/374 50.800 93.264 50.013 53.188 1.40
375D/372A 50.800 96.838 53.188 53.188 1.61
389DE/382A 55.562 96.838 51.298 53.188 2.05
39585D/39520 63.500 112.712 60.325 60.325 2.59
78251D/78537 63.500 136.525 66.091 65.989 4.59
78251D/78551 63.500 140.030 66.090 65.989 4.83
78255D/78537 64.987 136.525 66.091 65.989 4.55
78255D/78551 64.987 140.030 66.091 65.989 4.91
496D/492A 80.962 133.350 60.325 59.538 3.25
496D/493 80.962 136.525 60.325 59.538 3.53
581D/572 80.962 139.992 80.962 80.134 5.31
L217845D/L217810 85.725 123.825 41.278 44.450 1.74
L217845D/L217813 85.725 127.000 41.278 44.450 1.93
767D/752 88.900 161.925 101.549 107.950 8.77
42362D/42584 92.075 148.430 57.150 57.942 3.87
LM119348D/LM119311 95.250 136.525 57.150 57.150 2.68

Series of TDI type double row inch size tapered roller bearings

Popular types of TDI Type:

  • 14126D/14276
  • 13169D/13318
  • 13176D/13318

Features of double row tapered roller bearings

  • High load carrying capacity
    Double row tapered roller bearings are suitable for heavy radial and axial loads. The axial load carrying capacity of tapered roller bearings increases with increasing contact angle α. The contact angle size, usually between 10° and 30°, is related to the calculation factor e (from the product tables): the larger the value of e, the larger the contact angle.
  • Axial loads in both directions
    Double row tapered roller bearings locate the shaft in both directions with a specific axial clearance or preload.
  • High stiffness
    Double row tapered roller bearings provide a stiff bearing arrangement.
  • Low friction
    The flange’s optimized roller end design and surface finish promote lubricant film formation, resulting in lower friction. This also reduces frictional heat and flange wear. In addition, the bearings can better maintain preload and run at reduced noise levels.
  • Long service life
    The crowned raceway profiles of basic design bearings and the logarithmic raceway profiles optimize the load distribution along the contact surfaces, reduce stress peaks at the roller ends, and reduce the sensitivity to misalignment and shaft deflection compared with conventional straight raceway profiles.
  • Enhanced operational reliability
    The optimized surface finish on the contact surfaces of the rollers and raceways supports the formation of a hydrodynamic lubricant film.
  • Consistency of roller profiles and sizes
    The rollers incorporated in our double row tapered roller bearings are manufactured to such close dimensional and geometrical tolerances that they are practically identical. This provides optimal load distribution, reduces noise and vibration, and enables preload to be set more accurately.

Application of double row tapered roller bearings

  • mining
  • petroleum
  • heavy machinery
  • wind power
  • engineering machinery
  • and other industries