All Product Types > ENGINEERED BEARINGS > Cylindrical Roller Bearings > Cylindrical Roller Radial Bearings - Two-Row > Part Number NNU49/900MAW33  

Part Number NNU49/900MAW33, Cylindrical Roller Radial Bearings - Two-Row

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  • 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
900 mm

Static Load Rating Co
20650000 N
4643000 lbf

Dynamic Load Rating C11
7790000 N
1750000 lbf

Geometry Factor Cg2
0.4940

Thermal Speed Ratings - Oil
160 rpm

Thermal Speed Ratings - Grease
150 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
1180 mm
46.4567 in

Width B
280 mm
11.0236 in

DUR/DOR F/E
986 mm
38.8189 in


Mounting Data

Chamfer rsmin
6 mm
0.24 in

Chamfer r1smin1
6 mm
0.240 in

Backing Shaft Diameter ds
968.8 mm
38.1400 in

Backing Housing Diameter Ds
1106 mm
43.5400 in
1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.


Lubrication Data

Lubrication Groove g
25.3 mm
1.00 in

Lubrication Hole Diameter h
13.0 mm
0.51 in

Number of Lubrication Holes
16

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


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·  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



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Catalog and Technical Information - Cylindrical Roller Bearings