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 Type double row inch tapered roller bearings consist of a single-piece (double) inner ring and 2 single outer rings. It is usually supplied complete with an outer-ring spacer as a pre-set assembly. TDI 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.

Product parameter

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

Series of TDI Type double row tapered roller bearings

Popular types of TDI Type:

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

Features of TDI Type double row tapered roller bearings

  • High load-carrying capacity
    TDI Type 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
    TDI Type Double row tapered roller bearings locate the shaft in both directions with a specific axial clearance or preload.
  • High stiffness
    TDI Type 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 TDI Type 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 TDI Type double row tapered roller bearings

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

Company Information

We are a professional bearing exporter in China, producing many bearings in different sizes and sizes. We can provide you with excellent service in a wide range of bearings with world-class quality, such as deep groove ball bearings, spherical roller bearings, spherical ball/roller bearings, and cylindrical roller bearings, tapered roller bearings, angular contact Ball bearings, etc. Bearings can also provide OEM services according to customer requirements. We adhere to strict global standards, which is why we can provide you with a wide range of bearings of world-class quality. We have always adhered to the principle of “integrity-based, quality first, customer foremost.” We are ready to use our sincerity to serve every global customer for long-term and win-win cooperation.