All Product Types > ENGINEERED BEARINGS > Cylindrical Roller Bearings > Cylindrical Roller Radial Bearings - Two-Row > Part Number NNU4148MAW33  

Part Number NNU4148MAW33, Cylindrical Roller Radial Bearings - Two-Row

    Download PDF Download PDF   
    border="0" Printable Page  
    Email Email This Page  
    Save To Favorites Save To Favorites
  

  • Additional radial load-carrying capability compared to single-row product.
  • Designed to ISO/DIN specified interchangeable dimensions.
  • Sold as complete assembly.

NNU-1
  • Outer rings with solid ribs.
  • Lubrication grooves and holes on outer rings.
  • One solid brass cage.

The radial internal clearance (RIC) for the bearing assembly must be included when ordering the complete assembly.




Specifications  · Bearing Dimensions  · Mounting Data  · Lubrication Data

Specifications

Bore d
240 mm

Static Load Rating Co
3680000 N
828000 lbf

Dynamic Load Rating C11
2290000 N
515000 lbf

Geometry Factor Cg2
0.1960

Thermal Speed Ratings - Oil
870 rpm

Thermal Speed Ratings - Grease
800 rpm
1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
2 Cg factor for bearing without inner ring.


Bearing Dimensions

O.D. D
400 mm
15.748 in

Width B
160 mm
6.2992 in

DUR/DOR F/E
282 mm
11.1024 in


Mounting Data

Chamfer rsmin
4 mm
0.16 in

Chamfer r1smin1
4 mm
0.160 in

Backing Shaft Diameter ds
275 mm
10.8300 in

Backing Housing Diameter Ds
368 mm
14.4900 in
1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.


Lubrication Data

Lubrication Groove g
12.3 mm
0.48 in

Lubrication Hole Diameter h
6.0 mm
0.24 in

Number of Lubrication Holes
6

Dimension S1
7.20 mm
0.280 in
1 Permissible axial displacement from normal position of one bearing ring in relation to the other.


 MORE IMAGES 

·  timken-CRB-NN-Brass-Cage-Large-left-angle-view

·  timken-CRB-NN-Brass-Cage-Large-cutaway-view

·  timken-CRB-NN-Brass-Cage-Large-top-angle-view



 DOWNLOADS 

Catalog and Technical Information - Cylindrical Roller Bearings