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spacer Kaydon Bearings - Endurakote-plated bearings
Kaydon Bearings - NB series
Kaydon Bearings - type A, angular contact bearings

A deep groove bearing with reduced shoulder on one side of inner or outer race ball path. Snapover assembly permits use of a one-piece circular pocket ring separator and greater ball complement. These bearings will accept radial load and single direction thrust load and are normally used in conjunction with another bearing of similar construction. Type A bearings require the application of thrust to establish contact angle.

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Kaydon
part
number
Dimensions in inches Capacities (lbs)1 Approx.
weight
(lbs)
Bore Outside
dia.
Land
dia.
L1
Land
dia.
L2
C'Bore
dia.
L3
Dynamic Static2
Kaydon
radial
ISO
radial3
Thrust Radial Thrust
NB020AR0 2.0000 2.6252 2.231 2.393 2.464 601 1,520 1,380 1,090 3,150 0.150
NB025AR0 2.5000 3.1252 2.731 2.893 2.964 675 1,650 1,590 1,340 3,860 0.190
NB030AR0 3.0000 3.6252 3.231 3.393 3.462 734 1,737 1,750 1,550 4,470 0.220
NB035AR0 3.5000 4.1252 3.731 3.893 3.962 801 1,840 1,930 1,790 5,180 0.270
NB040AR0 3.9998 4.6253 4.231 4.393 4.460 865 1,934 2,100 2,040 5,890 0.300
NB042AR0 4.2498 4.8753 4.481 4.643 4.710 891 1,967 2,170 2,150 6,200 0.310
NB045AR0 4.4998 5.1253 4.731 4.893 4.960 917 2,000 2,240 2,250 6,500 0.340
NB047AR0 4.7498 5.3753 4.981 5.143 5.210 951 2,051 2,340 2,390 6,910 0.350
NB050AR0 4.9998 5.6253 5.231 5.393 5.460 976 2,081 2,410 2,500 7,210 0.370
NB055AR0 5.4998 6.1253 5.731 5.893 5.958 1,033 2,158 2,560 2,740 7,920 0.400
NB060AR0 5.9998 6.6253 6.231 6.393 6.458 1,088 2,230 2,710 2,990 8,630 0.440
NB065AR0 6.4998 7.1253 6.731 6.893 6.958 1,132 2,281 2,840 3,200 9,240 0.470
NB070AR0 6.9998 7.6253 7.231 7.393 7.456 1,184 2,347 2,980 3,450 9,960 0.500
NB075AR0 7.4998 8.1253 7.731 7.893 7.955 1,235 2,409 3,120 3,700 10,670 0.540
NB080AR0 7.9998 8.6253 8.231 8.393 8.453 1,284 2,469 3,260 3,940 11,380 0.570
NB090AR0 8.9998 9.6253 9.231 9.393 9.451 1,370 2,568 3,510 4,400 12,700 0.640
NB100AR0 9.9998 10.6253 10.231 10.393 10.449 1,461 2,673 3,760 4,890 14,120 0.710
NB110AR0 10.9998 11.6253 11.231 11.393 11.447 1,540 2,760 4,000 5,350 15,440 0.780
NB120AR0 11.9998 12.6253 12.231 12.393 12.445 1,623 2,853 4,240 5,840 16,860 0.850
NB140AR0 13.9998 14.6253 14.231 14.393 14.439 1,767 3,005 4,670 6,760 19,500 0.980
NB160AR0 15.9998 16.6253 16.231 16.393 16.433 1,907 3,154 5,100 7,710 22,250 1.120
NB180AR0 17.9998 18.6253 18.231 18.393 18.425 2,038 3,292 5,510 8,660 24,990 1.260
NB200AR0 19.9998 20.6253 20.231 20.393 20.416 2,162 3,421 5,900 9,610 27,730 1.400
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Notes
1 Capacities listed are not simultaneous. For combined loading see discussion of Bearing Selection and Load Analysis in "Catalog 300—Ball & Roller Bearings". 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 ISO Radial ratings are calculated per ISO 281:1990. They are included for comparison only.
4 "F" is the maximum shaft or housing fillet radius the bearing corners will clear.

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

Related downloads
Catalog 300: Endurakote®-plated bearings (Adobe PDF)
Catalog 300: all pages (Adobe PDF)
Precision tolerances and recommended fits (Adobe PDF)

Adobe Acrobat Reader

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Circular pocket separator
5/32" balls

NB series, type A - angular contact, bearing profile

4F = 0.040
Bearing corners are
normally chamfered

 
 

 
 

 

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