Menu
Batch CAD Cart (0) ▾
  • Cart is empty
  1. Click Here for Batch Download
Request Information Add to CAD Cart
  • 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.
Unit of Measure

Specifications

Bore d

 N/A 500 mm

Static Load Rating Co

 N/A 6280000 N1410000 lbf
Dynamic Load Rating C11 N/A 2690000 N605000 lbf
Geometry Factor Cg2 N/A 0.3060

Thermal Speed Ratings - Oil

 N/A 420 rpm

Thermal Speed Ratings - Grease

 N/A 380 rpm

Bearing Dimensions

O.D. D

 N/A 670 mm26.3780 in

Width B

 N/A 170 mm6.6929 in

DUR/DOR F/E

 N/A 554 mm21.8110 in

Mounting Data

Chamfer rsmin

 N/A 5 mm0.2 in
Chamfer r1smin3 N/A 5 mm0.200 in

Backing Shaft Diameter ds

 N/A 543 mm21.3800 in

Backing Housing Diameter Ds

 N/A 626 mm24.6500 in

Lubrication Data

Lubrication Groove g

 N/A 19.3 mm0.76 in

Lubrication Hole Diameter h

 N/A 9.5 mm0.37 in

Number of Lubrication Holes

 N/A 12
Dimension S4 N/A 6.40 mm0.250 in
  • 1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 2 Cg factor for bearing without inner ring.
  • 3 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 4 Permissible axial displacement from normal position of one bearing ring in relation to the other.
By clicking Submit, you consent to the personal information you provide being used in the manner as described in our Privacy Notice, including access to that information by Timken personnel who may be located outside your home country. In addition, you agree that the CAD drawings are for your personal, one-time use only, and that you will not modify or create any compilation or derivative work using the CAD drawings or distribute or display the CAD drawings on any website or other media.