All Product Types > ENGINEERED BEARINGS > Cylindrical Roller Bearings > Cylindrical Roller Radial Bearings - Two-Row > Part Number NNU40/670MAW33  

Part Number NNU40/670MAW33, 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
670 mm

Static Load Rating Co
18840000 N
4236000 lbf

Dynamic Load Rating C11
9740000 N
2190000 lbf

Geometry Factor Cg2
0.4040

Thermal Speed Ratings - Oil
210 rpm

Thermal Speed Ratings - Grease
200 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
980 mm
38.5827 in

Width B
308 mm
12.1260 in

DUR/DOR F/E
744 mm
29.2913 in


Mounting Data

Chamfer rsmin
7.5 mm
0.300 in

Chamfer r1smin1
7.5 mm
0.300 in

Backing Shaft Diameter ds
726.9 mm
28.6200 in

Backing Housing Diameter Ds
922 mm
36.3000 in
1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.


Lubrication Data

Lubrication Groove g
22.0 mm
0.87 in

Lubrication Hole Diameter h
12.0 mm
0.47 in

Number of Lubrication Holes
16

Dimension S1
13.00 mm
0.510 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