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NNCF 4852 CV Bearings
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NNCF 4952 CV Bearings

NNCF 4952 CV Bearings
NNCF 4952 CV Bearings

NNCF 4952 CV Bearings Double row full complement cylindrical roller bearing, NNCF design, with relubrication feature

Technical Specification of NNCF 4952 CV Bearings

NNCF-5004-CV-Bearings

Dimensions of NNCF 4952 CV Bearings

d
260 mm
Bore diameter
D
360 mm
Outside diameter
B
100 mm
Width
d1
295 mm
Shoulder diameter inner ring
D1
321 mm
Shoulder diameter outer ring
b1
9.4 mm
Width annular lubrication groove outer ring
K
5 mm
Diameter lubrication hole (outer ring)
s
max.6 mm
Permissible axial displacement from the normal position of one bearing ring relative to the other
r1,2
min.2.1 mm
Chamfer dimension (open bearings)
r3,4
min.2.1 mm
Chamfer dimension

Abutment Dimensions of NNCF 4952 CV Bearings

da
min.272 mm
Abutment diameter shaft
das
283 mm
Abutment diameter shaft
Da
max.349 mm
Abutment diameter housing
ra
max.2 mm
Fillet radius
rb
max.2 mm
Fillet radius

 

NCF 3004 CV bearing

Caliculation Data of NNCF 4952 CV Bearings

Basic dynamic load ratingC
1 170 kN
Basic static load ratingC0
2 550 kN
Fatigue load limitPu
245 kN
Reference speed 
750 r/min
Limiting speed 
950 r/min
Minimum load factorkr
0.25

Mass of NNCF 4952 CV Bearings

Mass bearing
31.6kg

Product Features of NNCF 4952 CV Bearings

  • high carrying capacity
  • high stiffness
  • Adapt to axial displacement
    Bearings with ribs on both inner and outer rings are excluded.
  • low friction
  • Open flange design
    Together with the roller end design and surface finish, it promotes lubricant film formation, which reduces friction and increases axial load capacity.
  • long lasting
    Logarithmic roller profile reduces edge stress at roller/raceway contact and susceptibility to misalignment and shaft deflection.
  • Enhanced operational reliability
    The surface finish of the roller and raceway contact surfaces supports the formation of a hydrodynamic lubricant film.
  • separable and interchangeable
    The separable parts of cylindrical roller bearings are interchangeable. This facilitates installation and removal as well as maintenance inspections.

Applications of NNCF 4952 CV Bearings

  • Here are examples of applications in which Cylindrical roller bearings might be used:​
  • Mining operations, paper mills, oil fields, marine industry, steel, electrical, construction machinery, all types of specialized machinery and all types of heavy industry.
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 Cylindrical roller bearings

FAQ of NNCF 4952 CV 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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