NNC 4830 CV Bearings
NNC 4830 CV Bearings
2023-03-29
NNCF 5028 CV Bearings
NNCF 5028 CV Bearings
2023-03-29

319430 B-2LS Bearings

319430 B-2LS Bearings
319430 B-2LS Bearings

319430 B-2LS Bearings Double row full complement cylindrical roller bearing, NNCF design, with relubrication feature

Technical Specification of 319430 B-2LS Bearings

NNCF-5004-CV-Bearings

Dimensions of 319430 B-2LS Bearings

Dimensions

d
150 mm
Bore diameter
D
210 mm
Outside diameter
B
80 mm
Width
C
79 mm
Outer ring width (sealed bearing)
d1
170 mm
Shoulder diameter inner ring
D3
206 mm
Snap ring groove diameter at outer ring
C1
71.2 mm
Distance between two snap ring grooves of the outer ring outside surface
 
+0.2 mm
Tolerance for distance C1
C2
3.9 mm
Distance outer ring side face – snap ring groove (sealed bearing)
b
5.2 mm
Width snap ring groove outer ring
b1
7 mm
Width annular lubrication groove outer ring
K
4 mm
Diameter lubrication hole (outer ring)
r
min.1.8 mm
Chamfer dimension (sealed bearing)
r3,4
min.0.6 mm
Chamfer dimension

Abutment Dimensions of 319430 B-2LS Bearings

da
min.157 mm
Abutment diameter shaft
das
166 mm
Abutment diameter shaft
Ca1
65 mm
Abutment width applying for SW snap rings (sealed brg.)
 
0.2 mm
Tolerance for abutment Ca (SW snap rings)
Ca2
61 mm
Abutment width applying for DIN 471 snap rings (sealed brg.)
 
0.2 mm
Tolerance for abutment Ca (DIN 471 snap rings)
ra
max.1.5 mm
Fillet radius
NCF 3004 CV bearing

Caliculation Data of 319430 B-2LS Bearings

Basic dynamic load ratingC
484 kN
Basic static load ratingC0
915 kN
Fatigue load limitPu
100 kN
Limiting speed 
600 r/min
Minimum load factorkr
0.4

Mass of 319430 B-2LS Bearings

Mass bearing
8.4kg

Product Features of 319430 B-2LS 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 319430 B-2LS 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 319430 B-2LS 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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