NKIA 5908 Bearings
NKIA 5908 Bearings
NKIA 5907 Bearings
NKIA 5907 Bearings

NKIB 5907 Bearings

NKIB 5907 Bearings
NKIB 5907 Bearings

NKIB 5907 Combined needle roller / angular contact ball bearing for axial loads in one direction

Technical Specification of NKIB 5907 Bearings

Dimensions of NKIB 5907 Bearings

35 mm
Bore diameter
55 mm
Outside diameter
30 mm
27 mm
Width of outer ring
42 mm
Diameter of inner ring raceway
min.0.6 mm
Chamfer dimension


Abutment Dimensions of NKIB 5907 Bearings

min.39 mm
Diameter of shaft abutment
max.51 mm
Diameter of housing abutment
max.0.6 mm
Radius of fillet


Caliculation Data of NKIB 5907 Bearings

Basic dynamic load rating, radialC
31.9 kN
Basic static load rating, radialC0
54 kN
Basic dynamic load rating, axialC
5.83 kN
Basic static load rating, axialC0
8.42 kN
Fatigue load limit, radialPu
6.7 kN
Fatigue load limit, axialPu
0.355 kN
Reference speed 
9 500 r/min
Limiting speed 
11 000 r/min

Mass of NKIB 5907 Bearings


Product Features of NKIB 5907 Bearings

  • Aligning needle roller bearings are self-aligning and provide a compact solution in applications where space is at a premium.

  • They have a high load carrying capacity due to their large number of rollers. Their internal design, where the convex outer ring meets two concave seat rings encapsulated in a drawn sleeve, allows the bearing to accommodate initial static misalignment.

  • If the shaft can be hardened and ground, the inner ring-less bearing is the best choice for compact bearing arrangements.

  • High radial load carrying capacity

  • Adapts to static initial misalignment

  • low cross-sectional height

  • Suitable for compact bearing arrangements

Applications of NKIB 5907 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..
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Steel Industry
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Food Processing Machinery
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Mining & Construction
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Electric motors and generators

Product classification of Needle roller 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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