NJ 306 ECML

Single row cylindrical roller bearing, NJ design

Single row cylindrical roller bearings are designed to accommodate high radial loads in combination with high speeds.

Having two integral flanges on the outer ring and one on the inner ring, NJ design bearings can accommodate axial displacement in one direction. An important feature is the separable design, which facilitates mounting and enables the bearing components to be interchanged.

  • High radial load carrying capacity
  • Low friction
  • Long service life
  • Locate the shaft axially in one direction
  • Separable design

Dimensions

d
30 mm
 Bore diameter
D
72 mm
 Outside diameter
B
19 mm
 Width
d1
≈45 mm
 Shoulder diameter of inner ring
D1
≈58.85 mm
 Shoulder diameter of outer ring
F
40.5 mm
 Raceway diameter of inner ring
r1,2
min.1.1 mm
 Chamfer dimension
r3,4
min.1.1 mm
 Chamfer dimension
s
max.1.4 mm
 Permissible axial displacement
Abutment dimensions - NJ 306 ECML

Abutment dimensions

da
min.37 mm
 Diameter of spacer sleeve
da
max.39 mm
 Diameter of spacer sleeve
db
min.47 mm
 Diameter of shaft abutment
Da
max.65.1 mm
 Diameter of housing abutment
ra
max.1 mm
 Radius of fillet

Calculation data

SKF performance class
SKF Explorer
Basic dynamic load rating C
58.5 kN
Basic static load rating C0
48 kN
Fatigue load limit Pu
6.2 kN
Reference speed
11 000 r/min
Limiting speed
19 000 r/min
Minimum load factor kr
0.23
Limiting value e
0.2
Calculation factor Y
0.6

Associated products

Angle ring
HJ 306 EC
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SKU: NJ 306 ECML-SKF Categories: , , ,
SKF

Description

Properties

Bearing part Complete bearing
Axial displacement capability In one direction
Number of rows 1
Locating feature, bearing outer ring Without
Bore type Cylindrical
Cage Machined brass
Number of flanges, outer ring 2
Number of flanges, inner ring 1
Loose flange None
Radial internal clearance CN
Tolerance class Normal
Coating Without
Sealing Without
Lubricant None
Relubrication feature Without
Indicative product carbon footprint to manufacture 1.52 kg CO2e

Logistics

Product net weight 0.422 kg
eClass code 23-05-09-01
UNSPSC code 31171505

(30X72X19) (NJ306ECML) (NJ306ECM) (NJ306M)

Additional information

Weight 0.422 kg
Size (mm)

Colour

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