Tag Archives: roller bearings

China Good quality TDI Type Double-row Inch Size Tapered Roller Bearings with Great quality

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
(mm)
Mass
(kg)
Bearing NO.
d D T B EVER-POWER
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.

China Professional Combined Needle Roller Bearings with Good quality

Combined Needle Roller Bearings

Our combined needle roller bearings consist of a radial needle roller bearing and a thrust bearing. The combination can be Needle roller & angular contact ball bearings, Needle roller & thrust ball bearings, and Needle roller & cylindrical roller thrust bearings. They can accommodate both radial and axial loads. They are particularly suitable for applications where other types of locating bearing arrangements occupy too much space, the axial loads are too heavy, the speeds are too high, or the lubricant is inadequate for meetings with simple thrust washers.

Product parameter

Bearing NO. Boundary dimensions
(mm)
Basic load rating
d D B C C0
NKIA 5901 12 24 16 8.6 9,46
NKIB 5901 12 24 17.5 8.6 9,46
NKIA 5902 15 28 18 12 14,99
NKIB 5902 15 28 20 12 14,99
NKIA 5903 17 30 18 12.4 15,97
NKIB 5903 17 30 20 11.17 15,97
NKIA 5904 20 37 23 21.17 27.44
NKIB 5904 20 37 25 21.17 27.44
NKIA 59/22 22 39 23 22.83 31.36
NKIB 59/22 22 39 25 22.83 31.36
NKIA 5905 25 42 23 23.72 33.81
NKIB 5905 25 42 25 23.72 33.81
NKIA 5906 30 47 23 24.99 38.22
NKIB 5906 30 47 25 24.99 38.22
NKIA 5907 35 55 27 31.26 52.92
NKIB 5907 35 55 30 31.26 52.92
NKIA 5908 40 62 30 42.04 69.58
NKIB 5908 40 62 34 42.04 69.58
NKIA 5909 45 68 30 44.79 76.44
NKIB 5909 45 68 34 44.79 76.44
NKIA 5910 50 72 30 46.35 83.3
NKIB 5910 50 72 34 46.35 83.3
NKIA 5911 55 80 34 56.06 103.88
NKIB 5911 55 80 38 56.06 103.88
NKIA 5912 60 85 34 59.29 111.72
NKIB 5912 60 85 38 59.29 111.72
NKIA 5913 65 90 34 60.37 117.6
NKIB 5913 65 90 38 60.37 117.6
NKIA 5914 70 100 40 82.52 159.74
NKIB 5914 70 100 50 82.52 159.74
NX 7 TN 7 14 18 2.75 2.7
NX 7 ZTN 7 14 18 2.75 2.7
NX 10 10 19 18 4.85 4.46
NX 10 Z 10 19 18 4.85 4.46
NX 12 12 21 18 5.28 5.1
NX 12 Z 12 21 18 5.28 5.1
NX 15 15 24 28 10.78 13.72
NX 15 Z 15 24 28 10.78 13.72
NX 17 17 26 28 11.86 16.27
NX 17 Z 17 26 28 11.86 16.27
NX 20 20 30 28 12.94 18.91
NX 20 Z 20 30 28 12.94 18.91
NX 25 25 37 30 14.8 24.01
NX 25 Z 25 37 30 14.8 24.01
NX 30 30 42 30 22.44 37.24
NX 30 Z 30 42 30 22.44 37.24
NX 35 35 47 30 24.11 44.1
NX 35 Z 35 47 30 24.11 44.1
NKX 10 TN 10 19 23 5.7 7.6
NKX 10 ZTN 10 19 23 5.7 7.6
NKX 12 12 21 23 8.76 11.4
NKX 12 Z 12 21 23 8.76 11.4
NKX 15 15 24 23 10.56 13.3
NKX 15 Z 15 24 23 10.56 13.3
NKX 17 17 26 25 11.62 15.77
NKX 17 Z 17 26 25 11.62 15.77
NKX 20 20 30 30 15.84 24.23
NKX 20 Z 20 30 30 15.84 24.23
NKX 25 25 37 30 18.24 30.88
NKX 25 Z 25 37 30 18.24 30.88
NKX 30 30 42 30 21.98 36.1
NKX 30 Z 30 42 30 21.98 36.1
NKX 35 35 47 30 23.62 42.75
NKX 35 Z 35 47 30 23.62 42.75
NKX 40 40 52 32 25.34 48.45
NKX 40 Z 40 52 32 25.34 48.45
NKX 45 45 58 32 26.4 54.15
NKX 45 Z 45 58 32 26.4 54.15
NKX 50 50 62 35 36.48 74.1
NKX 50 Z 50 62 35 36.48 74.1
NKX 60 60 72 40 40.13 91.68
NKX 60 Z 60 72 40 40.13 91.68

Types of combined needle roller bearings

Needle roller / angular contact ball bearings

Needle roller / angular contact ball bearings without seals in 2 series:

  • NKIA 59 (accommodate axial loads in 1 direction).
  • NKIB 59 (accommodate axial loads in both directions).

Needle roller/thrust ball bearings

Needle roller/thrust ball bearings in 2 series:

  • NX (with a full comple­ment thrust ball bearing).
  • NKX (with a thrust ball bearing with a cage).
We supply needle roller / cylindrical roller thrust bearings

  • NKXR series.

Features of combined needle roller bearings

  • Locating bearing arrangement
    Accommodate combined radial and axial loads in 1 or both directions.
  • Low cross-section
    In applications where less space is available, combined needle roller bearings offer a very compact solution.
  • High carrying capacity
    Owing to their large number of rolling elements, combined needle roller bearings have a high load-carrying capacity.

Applications of combined needle roller bearings

Our combined bearings can be used in different applications, for example:

  • machine tools;
  • wire-hooding machines;
  • capping machines;
  • etc.

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.