NNU4180 bearing

Why choose us
HBTA-Always stands at the user's point of view to provide users and customers with the best solutions and services.The company has passed ISO 9001:2015 quality management system certification.
Double Row Cylindrical Roller Bearings
HeBei TuoAn Bearing Co.,Ltd

NNU4180 bearing

  • Double Row Cylindrical Roller Bearings
  • Double Row Cylindrical Roller Bearings
Bearing NO.
Cylindrical bore :NNU4180
Tapered bore :NNU4180K30
Boundary dimensions(mm)
d :400
D :650
B/C :250
r 1.2min :6
r3.4min :6
Basic load ratings(kN)
Cr :4730
Cor :9500
Limiting speed(rpm)
Speed Ratings :800
Abutment and fillet dimensions(mm)
da max :456
Da max :624
ra max :5
rb max :5
Weight (kg)
Refer :325

Features:

1. The rollers and raceways are in line contact or trimmed line contact. They have large radial load-bearing capacity and are suitable for withstanding heavy loads and impact loads.

2. The friction coefficient is small, suitable for high speeds, and the limit speed is close to that of deep groove ball bearings.

3. N type and NU type can move axially, can adapt to changes in the relative position of the shaft and housing caused by thermal expansion or installation errors, and can be used as free end supports.

4. The processing requirements for the shaft or seat hole are relatively high. After the bearing is installed, the relative deflection of the outer ring axis must be strictly controlled to avoid contact stress concentration.

5. The inner or outer ring can be separated for easy installation and removal