The Timken Company
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: (234) 262-3000
E-Mail: CustomerCAD@timken.com • Web site: www.timken.com
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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.
timken-CRB-NN-Brass-Cage-Large-left-angle-view
Two-Row Cylindrical Roller Bearing
Unit of Measure
Items timken-CRB-NN-Brass-Cage-Large-left-angle-view
NNU4930MAW33
Cylindrical Roller Radial Bearings - Two-Row 		timken-CRB-NN-Brass-Cage-Large-left-angle-view
NNU4932MAW33
Cylindrical Roller Radial Bearings - Two-Row 		timken-CRB-NN-Brass-Cage-Large-left-angle-view
NNU4934MAW33
Cylindrical Roller Radial Bearings - Two-Row 		timken-CRB-NN-Brass-Cage-Large-left-angle-view
NNU4936MAW33
Cylindrical Roller Radial Bearings - Two-Row 		timken-CRB-NN-Brass-Cage-Large-left-angle-view
NNU4938MAW33
Cylindrical Roller Radial Bearings - Two-Row
Bore d N/A 150 mm N/A 160 mm N/A 170 mm N/A 180 mm N/A 190 mm
O.D. D N/A 210 mm8.2677 in N/A 220 mm8.6614 in N/A 230 mm9.0551 in N/A 250 mm9.8425 in N/A 260 mm10.2362 in
Width B N/A 60 mm2.3622 in N/A 60 mm2.3622 in N/A 60 mm2.3622 in N/A 69 mm2.7165 in N/A 69 mm2.7165 in
DUR/DOR F/E N/A 168.5 mm6.6339 in N/A 178.5 mm7.0276 in N/A 188.5 mm7.4213 in N/A 202 mm7.9528 in N/A 212 mm8.3465 in
Static Load Rating Co N/A 668000 N150200 lbf N/A 692000 N155600 lbf N/A 696000 N156200 lbf N/A 850000 N191000 lbf N/A 890000 N200000 lbf
Dynamic Load Rating C11 N/A 374000 N84100 lbf N/A 380000 N85300 lbf N/A 376000 N84600 lbf N/A 449000 N101000 lbf N/A 459000 N103000 lbf
Chamfer rsmin N/A 2 mm0.08 in
Chamfer r1smin2 N/A 2 mm0.080 in
Backing Shaft Diameter ds N/A 165 mm6.5000 in N/A 175 mm6.8900 in N/A 185 mm7.2800 in N/A 198 mm7.8000 in N/A 207 mm8.1500 in
Backing Housing Diameter Ds N/A 197 mm7.7600 in N/A 207 mm8.1500 in N/A 217 mm8.5400 in N/A 232 mm9.1300 in N/A 242 mm9.53 in
Lubrication Groove g N/A 6.8 mm0.27 in N/A 6.8 mm0.27 in N/A 6.8 mm0.27 in N/A 9.6 mm0.38 in N/A 9.6 mm0.38 in
Lubrication Hole Diameter h N/A 3.0 mm0.12 in N/A 3.0 mm0.12 in N/A 3.0 mm0.12 in N/A 4.5 mm0.18 in N/A 4.5 mm0.18 in
Number of Lubrication Holes N/A 6
Dimension S3 N/A 2.60 mm0.100 in N/A 2.80 mm0.110 in N/A 2.80 mm0.110 in N/A 3.40 mm0.130 in N/A 2 mm0.080 in
Geometry Factor Cg4 N/A 0.199 N/A 0.206 N/A 0.161 N/A 0.136 N/A 0.1410
Thermal Speed Ratings - Oil N/A 2100 rpm N/A 2000 rpm N/A 1900 rpm N/A 1700 rpm N/A 1600 rpm
Thermal Speed Ratings - Grease N/A 1800 rpm N/A 1700 rpm N/A 1600 rpm N/A 1500 rpm N/A 1400 rpm
Weight N/A 6.255 Kg13.90 lb N/A 6.57 Kg14.6 lb N/A 6.93 Kg15.4 lb N/A 10.395 Kg23.1 lb N/A 10.71 Kg23.8 lb
Full Timken Part Number N/A
  • 1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 2 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 3 Permissible axial displacement from normal position of one bearing ring in relation to the other.
  • 4 Cg factor for bearing without inner ring.