Place of Origin:
China
Brand Name:
ZH
Certification:
IS09001
Model Number:
NJ307ET2X
NJ307 NJ307ET2XU NJ307ET2XUP2RS P4 P0 P1 P5 P6 P3 Quality LEVEL CHROME STEEL Taper Roller Bearing
Product introduction
NJ 307ET2XU Cylindrical Roller Bearing is a type of rolling element bearing that is designed to provide support for radial loads, which are perpendicular to the axis of rotation.
It consists of an inner ring, an outer ring, cylindrical rollers, and a cage that holds the rollers in place.
The inner and outer rings of a cylindrical roller bearing are typically made of steel and are machined to precise dimensions. The cylindrical rollers are also made of steel and are arranged parallel to the axis of rotation. The cage,
usually made of brass or steel, holds the rollers evenly spaced apart and prevents them from coming into contact with each other.
Cylindrical roller bearings are commonly used in various machinery and equipment,
| d |
35 mm
|
Bore diameter |
|---|---|---|
| D |
80 mm
|
Outside diameter |
| B |
21 mm
|
Width |
| d1 |
≈51 mm
|
Shoulder diameter of inner ring |
| D1 |
≈65.8 mm
|
Shoulder diameter of outer ring |
| F |
46.2 mm
|
Raceway diameter of inner ring |
| r1,2 |
min.1.5 mm
|
Chamfer dimension |
| r3,4 |
min.1.1 mm
|
Chamfer dimension |
| s |
max.1.2 mm
|
Permissible axial displacement |
| da |
min.43 mm
|
Diameter of spacer sleeve |
|---|---|---|
| da |
max.44 mm
|
Diameter of spacer sleeve |
| db |
min.53 mm
|
Diameter of shaft abutment |
| Da |
max.72.2 mm
|
Diameter of housing abutment |
| ra |
max.1.5 mm
|
Radius of fillet |
| Basic dynamic load rating | C |
75 kN
|
|---|---|---|
| Basic static load rating | C0 |
63 kN
|
| Fatigue load limit | Pu |
8.15 kN
|
| Reference speed |
9 500 r/min
|
|
| Limiting speed |
11 000 r/min
|
|
| Minimum load factor | kr |
0.15
|
| Limiting value | e |
0.2
|
| Calculation factor | Y |
0.6
|
| da |
min.43 mm
|
Diameter of spacer sleeve |
|---|---|---|
| da |
max.44 mm
|
Diameter of spacer sleeve |
| db |
min.53 mm
|
Diameter of shaft abutment |
| Da |
max.72.2 mm
|
Diameter of housing abutment |
| ra |
max.1.5 mm
|
Radius of fillet |
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