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Kaydon Endurakote®-plated bearings

NA series
Type A – angular contact

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
NA020AR0 2.0000 2.5002 2.186 2.314 2.369 405 1,065 960 790 2,280 0.100
NA025AR0 2.5000 3.0002 2.686 2.814 2.869 459 1,150 1,100 960 2,780 0.120
NA030AR0 3.0000 3.5002 3.186 3.314 3.367 507 1,225 1,230 1,140 3,290 0.140
NA035AR0 3.5000 4.0002 3.686 3.814 3.867 552 1,292 1,350 1,310 3,790 0.170
NA040AR0 3.9998 4.5003 4.186 4.314 4.367 595 1,353 1,470 1,490 4,300 0.190
NA042AR0 4.2498 4.7503 4.436 4.564 4.615 616 1,382 1,530 1,580 4,550 0.200
NA045AR0 4.4998 5.0003 4.686 4.814 4.865 637 1,410 1,580 1,660 4,810 0.210
NA047AR0 4.7498 5.2503 4.936 5.064 5.115 657 1,437 1,640 1,750 5,060 0.220
NA050AR0 4.9998 5.5003 5.186 5.314 5.365 676 1,463 1,690 1,840 5,310 0.230
NA055AR0 5.4998 6.0003 5.686 5.814 5.863 715 1,513 1,800 2,020 5,820 0.250
NA060AR0 5.9998 6.5003 6.186 6.314 6.363 752 1,561 1,900 2,190 6,320 0.280
NA065AR0 6.4998 7.0003 6.686 6.814 6.861 788 1,605 2,000 2,370 6,830 0.300
NA070AR0 6.9998 7.5003 7.186 7.314 7.361 823 1,648 2,100 2,540 7,340 0.320
NA075AR0 7.4998 8.0003 7.686 7.814 7.861 857 1,689 2,190 2,720 7,840 0.340
NA080AR0 7.9998 8.5003 8.186 8.314 8.359 890 1,728 2,280 2,890 8,350 0.360
NA090AR0 8.9998 9.5003 9.186 9.314 9.357 954 1,802 2,470 3,240 9,360 0.410
NA100AR0 9.9998 10.5003 10.186 10.314 10.355 1,014 1,871 2,640 3,590 10,370 0.450
NA110AR0 10.9998 11.5003 11.186 11.314 11.353 1,072 1,936 2,810 3,940 11,380 0.500
NA120AR0 11.9998 12.5003 12.186 12.314 12.349 1,128 1,998 2,970 4,290 12,390 0.540
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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 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
NA series, type C
NA series, type X
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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Circular pocket separator
1/8" balls

NA series, type A - angular contact, bearing profile

4F = 0.025
Bearing corners are
normally chamfered