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Smarter Bearing Selection Is Here

The Timken ® Syber ® Bearing System Designer Tool now features Smart Selection, enabling users to find the right bearing faster by filtering options based on target life and key dimensions.

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Analyze Bearing Performance in an Application with Timken ® Syber ® Bearing System Designer

A powerful software tool that combines calculators and configurators to assist you with application design, bearing selection, installation, and troubleshooting. It’s free, easy-to-use, and accessible 24/7.

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Simplified Gear Force Analysis

Alex Waye, Timken Application Engineer, shows you how to instantly compute tangential, radial, and axial forces for better design decisions.

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  • timken-CRB-NN-Brass-Cage-Large-left-angle-view
  • Two-Row Cylindrical Roller Bearing
  • 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.
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Bore d (mm)

O.D. D (mm)

O.D. D (in)

Width B (mm)

Width B (in)

Dynamic Load Rating C1 (N)

Dynamic Load Rating C1 (lbf)

Thermal Speed Ratings - Oil (rpm)

Thermal Speed Ratings - Grease (rpm)

Part Number

Bore d

O.D. D

Width B

DUR/DOR F/E

Static Load Rating Co

Dynamic Load Rating C1

Thermal Speed Ratings - Oil

Thermal Speed Ratings - Grease

CAD

N/A 150 mm N/A 210 mm8.2677 in N/A 60 mm2.3622 in N/A 168.5 mm6.6339 in N/A 668000 N150200 lbf N/A 374000 N84100 lbf N/A 2100 rpm N/A 1800 rpm N/A CAD
N/A 160 mm N/A 220 mm8.6614 in N/A 60 mm2.3622 in N/A 178.5 mm7.0276 in N/A 692000 N155600 lbf N/A 380000 N85300 lbf N/A 2000 rpm N/A 1700 rpm N/A CAD
N/A 170 mm N/A 230 mm9.0551 in N/A 60 mm2.3622 in N/A 188.5 mm7.4213 in N/A 696000 N156200 lbf N/A 376000 N84600 lbf N/A 1900 rpm N/A 1600 rpm N/A CAD
N/A 180 mm N/A 250 mm9.8425 in N/A 69 mm2.7165 in N/A 202 mm7.9528 in N/A 850000 N191000 lbf N/A 449000 N101000 lbf N/A 1700 rpm N/A 1500 rpm N/A CAD
N/A 190 mm N/A 260 mm10.2362 in N/A 69 mm2.7165 in N/A 212 mm8.3465 in N/A 890000 N200000 lbf N/A 459000 N103000 lbf N/A 1600 rpm N/A 1400 rpm N/A CAD
N/A 200 mm N/A 280 mm11.0236 in N/A 80 mm3.1496 in N/A 225 mm8.8583 in N/A 1046000 N234000 lbf N/A 550000 N124000 lbf N/A 1500 rpm N/A 1300 rpm N/A CAD
N/A 200 mm N/A 340 mm13.3858 in N/A 140 mm5.5118 in N/A 235 mm9.2520 in N/A 2460000 N552000 lbf N/A 1690000 N381000 lbf N/A 1200 rpm N/A 1100 rpm N/A CAD
N/A 220 mm N/A 300 mm11.811 in N/A 80 mm3.1496 in N/A 245 mm9.6457 in N/A 1150000 N258000 lbf N/A 577000 N130000 lbf N/A 1400 rpm N/A 1200 rpm N/A CAD
N/A 220 mm N/A 370 mm14.5669 in N/A 150 mm5.9055 in N/A 258 mm10.1575 in N/A 2960000 N666000 lbf N/A 1930000 N434000 lbf N/A 1000 rpm N/A 940 rpm N/A CAD
N/A 240 mm N/A 320 mm12.5984 in N/A 80 mm3.1496 in N/A 265 mm10.4331 in N/A 1220000 N274000 lbf N/A 591000 N133000 lbf N/A 1200 rpm N/A 1100 rpm N/A CAD
N/A 240 mm N/A 400 mm15.748 in N/A 160 mm6.2992 in N/A 282 mm11.1024 in N/A 3680000 N828000 lbf N/A 2290000 N515000 lbf N/A 870 rpm N/A 800 rpm N/A CAD
N/A 260 mm N/A 360 mm14.1732 in N/A 100 mm3.937 in N/A 292 mm11.4961 in N/A 1710000 N385000 lbf N/A 856000 N192000 lbf N/A 1100 rpm N/A 950 rpm N/A CAD
N/A 260 mm N/A 440 mm17.3228 in N/A 180 mm7.0866 in N/A 306 mm12.0472 in N/A 4540000 N1022000 lbf N/A 2840000 N639000 lbf N/A 760 rpm N/A 710 rpm N/A CAD
N/A 280 mm N/A 380 mm14.9606 in N/A 100 mm3.937 in N/A 312 mm12.2835 in N/A 1834000 N412000 lbf N/A 880000 N198000 lbf N/A 1000 rpm N/A 880 rpm N/A CAD
N/A 280 mm N/A 460 mm18.1102 in N/A 180 mm7.0866 in N/A 326 mm12.8346 in N/A 4820000 N1084000 lbf N/A 2940000 N660000 lbf N/A 990 rpm N/A 910 rpm N/A CAD
N/A 300 mm N/A 420 mm16.5354 in N/A 118 mm4.6457 in N/A 339 mm13.3465 in N/A 2380000 N536000 lbf N/A 1170000 N263000 lbf N/A 880 rpm N/A 780 rpm N/A CAD
N/A 300 mm N/A 500 mm19.685 in N/A 200 mm7.874 in N/A 351 mm13.8189 in N/A 6140000 N1382000 lbf N/A 3780000 N850000 lbf N/A 600 rpm N/A 560 rpm N/A CAD
N/A 320.000 mm N/A 440 mm17.3228 in N/A 118 mm4.6457 in N/A 359 mm14.1339 in N/A 2660000 N598000 lbf N/A 1270000 N285000 lbf N/A 790 rpm N/A 710 rpm N/A CAD
N/A 320.000 mm N/A 540 mm21.2598 in N/A 218 mm8.5827 in N/A 375 mm14.7638 in N/A 6280000 N1410000 lbf N/A 3940000 N886000 lbf N/A 590 rpm N/A 550 rpm N/A CAD
N/A 340.000 mm N/A 460 mm18.1102 in N/A 118 mm4.6457 in N/A 379 mm14.9213 in N/A 2660000 N598000 lbf N/A 1250000 N282000 lbf N/A 760 rpm N/A 670 rpm N/A CAD
N/A 340.000 mm N/A 520 mm20.4724 in N/A 180 mm7.0866 in N/A 385 mm15.1575 in N/A 5130000 N1153000 lbf N/A 2980000 N669000 lbf N/A 610 rpm N/A 560 rpm N/A CAD
N/A 340.000 mm N/A 580 mm22.8346 in N/A 243 mm9.5669 in N/A 402 mm15.8268 in N/A 7580000 N1704000 lbf N/A 4660000 N1050000 lbf N/A 530 rpm N/A 490 rpm N/A CAD
N/A 360.000 mm N/A 480 mm18.8976 in N/A 118 mm4.6457 in N/A 399 mm15.7087 in N/A 2800000 N630000 lbf N/A 1270000 N285000 lbf N/A 710 rpm N/A 630 rpm N/A CAD
N/A 360.000 mm N/A 540 mm21.2598 in N/A 180 mm7.0866 in N/A 405 mm15.9449 in N/A 5580000 N1256000 lbf N/A 3180000 N716000 lbf N/A 560 rpm N/A 510 rpm N/A CAD
N/A 360.000 mm N/A 600 mm23.6220 in N/A 243 mm9.5669 in N/A 422 mm16.6142 in N/A 8480000 N1906000 lbf N/A 5000000 N1120000 lbf N/A 470 rpm N/A 440 rpm N/A CAD
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