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Kaydon Endurakote®-plated bearings

NB series
Type X – four point contact

A Conrad assembled bearing designed for applications involving multiple loads. Unique internal geometry permits application of radial load, thrust load in either direction, and moment load, individually or in any combination. A single four-point contact bearing may replace two bearings in many applications.

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Kaydon
part
number		 Dimensions in Inches Capacities1 Approx.
weight
(lbs)
Bore Outside
dia.		 Land
dia.
L1		 Land
dia.
L2		 Dynamic Static2
Radial
(lbs)		 Thrust
(lbs)		 Moment
(in-lbs)		 Radial
(lbs)		 Thrust
(lbs)		 Moment
(in-lbs)
NB020XP0 2.0000 2.6252 2.231 2.393 758 1,130 658 930 2,340 1,080 0.160
NB025XP0 2.5000 3.1252 2.731 2.893 848 1,290 895 1,140 2,840 1,600 0.190
NB030XP0 3.0000 3.6252 3.231 3.393 933 1,440 1,159 1,340 3,350 2,220 0.240
NB035XP0 3.5000 4.1252 3.731 3.893 1,014 1,590 1,450 1,540 3,860 2,940 0.270
NB040XP0 3.9998 4.6253 4.231 4.393 1,091 1,720 1,764 1,750 4,370 3,770 0.300
NB042XP0 4.2498 4.8753 4.481 4.643 1,120 1,780 1,917 1,830 4,570 4,170 0.310
NB045XP0 4.4998 5.1253 4.731 4.893 1,165 1,850 2,103 1,950 4,880 4,690 0.330
NB047XP0 4.7498 5.3753 4.981 5.143 1,193 1,900 2,265 2,030 5,080 5,140 0.340
NB050XP0 4.9998 5.6253 5.231 5.393 1,236 1,980 2,463 2,150 5,380 5,720 0.380
NB055XP0 5.4998 6.1253 5.731 5.893 1,304 2,100 2,844 2,360 5,890 6,850 0.410
NB060XP0 5.9998 6.6253 6.231 6.393 1,371 2,220 3,247 2,560 6,400 8,080 0.440
NB065XP0 6.4998 7.1253 6.731 6.893 1,435 2,340 3,668 2,760 6,910 9,410 0.470
NB070XP0 6.9998 7.6253 7.231 7.393 1,498 2,450 4,109 2,970 7,420 10,850 0.500
NB075XP0 7.4998 8.1253 7.731 7.893 1,559 2,560 4,568 3,170 7,920 12,380 0.530
NB080XP0 7.9998 8.6253 8.231 8.393 1,618 2,670 5,045 3,370 8,430 14,020 0.570
NB090XP0 8.9998 9.6253 9.231 9.393 1,732 2,880 6,050 3,780 9,450 17,600 0.660
NB100XP0 9.9998 10.6253 10.231 10.393 1,841 3,080 7,121 4,190 10,460 21,580 0.730
NB110XP0 10.9998 11.6253 11.231 11.393 1,945 3,280 8,254 4,590 11,480 25,970 0.750
NB120XP0 11.9998 12.6253 12.231 12.393 2,045 3,470 9,446 5,000 12,500 30,770 0.830
NB140XP0 13.9998 14.6253 14.231 14.393 2,234 3,840 11,994 5,810 14,530 41,580 1.050
NB160XP0 15.9998 16.6253 16.231 16.393 2,410 4,190 14,750 6,620 16,560 54,020 1.200
NB180XP0 17.9998 18.6253 18.231 18.393 2,576 4,520 17,694 7,440 18,590 68,090 1.350
NB200XP0 19.9998 20.6253 20.231 20.393 2,731 4,850 20,813 8,250 20,620 83,780 1.500
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Notes
1 Capacities listed are not simultaneous. For combined loading see discussion of Bearing Selection and Load Analysis in the Kaydon Reali-Slim® bearing catalog. Dynamic capacities are based upon 1 million revolutions of L10 life. Published capacities do not apply to hybrid series bearings P, X, and Y. Contact Kaydon product engineering for values.
2 Static capacities are non-brinell limits based on rigid support from the shaft and housing.
3 "F" is the maximum shaft or housing fillet radius the bearing corners will clear.

 
Related pages
NB series, type A
NB series, type C
Thin section bearing selector
Endurakote®-plated bearings part number codes
Reali-Design® engineering software

Related downloads
Kaydon Reali-Slim® bearing catalog (Adobe PDF)

Adobe Acrobat Reader

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Snap-over separator
5/32" balls

NB series, type X - four point contact, bearing profile

3F = 0.040
Bearing corners are
normally chamfered