K 25X32X16 Bearings
K 25X32X16 Bearings
2023-04-12
K 25X31X17 Bearings
K 25X31X17 Bearings
2023-04-12

K 25X31X21 Bearings

K 25X31X21 Bearings
K 25X31X21 Bearings

K 25X31X21 Single row needle roller and cage assembly

Technical Specification of K 25X31X21 Bearings

K 3X5X7 TN Bearings

Dimensions of K 25X31X21 Bearings

Fw
25 mm
Diameter under rollers
Ew
31 mm
Outside diameter roller complement
U
21mm
Width needle roller and cage assembly

Caliculation Data of K 25X31X21 Bearings

Basic dynamic load ratingC
23.3 kN
Basic static load ratingC0
38 kN
Fatigue load limitPu
4.75 kN
Reference speed 
16 000 r/min
Limiting speed 
18 000 r/min

Mass of K 25X31X21 Bearings

Mass needle roller and cage assembly
0.02 lb

Product Features of K 25X31X21 Bearings

  • Needle roller and cage assemblies are self-contained, ready-to-mount bearings without inner and outer rings.
  • In applications where the shaft and housing bore can serve as raceways, the assemblies can be used to create bearing arrangements that require minimal radial space.
  • As the clearance of the bearing arrangement is only affected by the roller sorting and the finish of shaft and housing, very precise bearing arrangements can be achieved.
  • High radial load carrying capacity
  • High stiffness
  • High precision
  • Lowest cross-sectional height among rolling bearings
  • Accommodate axial displacement in both directions

Applications of K 25X31X21 Bearings

  • The following are examples of applications where needle roller bearings may be used:
  • Household appliances; automobiles, electrical, instruments, construction machinery, railroad vehicles, agricultural machinery, etc..
Applications of W 618/0.6 Bearings
Cement
Applications of Bearings
Wind Turbines
Applications of Bearings
Steel Industry
Applications of Bearings
Railways
Applications of Bearings
Food Processing Machinery
Applications of Bearings
Motorcycles
Applications of Bearings
Mining & Construction
Applications of Bearings
Electric motors and generators

Product classification of Needle roller bearings

FAQ of K 25X31X21 Bearings

  • Ball bearings are ideal for high-speed rotation, while roller bearings are more suited for high loads.
  • Because cylindrical roller bearings have separable inner and outer rings, they generally do not come with seals (open specification). As such, please apply seals or other protection around the equipment mounting.
  • EW Series bearings are small and utilize a pressed cage, making them suitable for standard operating conditions. ET Series bearings use a polyamide-resin cage suited for high temperatures. Finally, EM Series bearings have machined cages for use in harsh conditions such as gearboxes or vibrating machinery or in applications where the bearing must be quiet, such as in mid-to-large size motors.

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