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Kaydon Reali-Slim® open bearings

KF 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)
KF040XP0 4.000 5.500 4.555 4.945 4,665 6,830 8,312 5,360 13,400 12,730 1.900
KF042XP0 4.250 5.750 4.805 5.195 4,795 7,070 8,993 5,640 14,110 14,110 2.000
KF045XP0 4.500 6.000 5.055 5.445 4,923 7,300 9,695 5,930 14,810 15,550 2.100
KF047XP0 4.750 6.250 5.305 5.695 5,048 7,530 10,416 6,210 15,520 17,070 2.200
KF050XP0 5.000 6.500 5.555 5.945 5,172 7,760 11,157 6,490 16,220 18,660 2.300
KF055XP0 5.500 7.000 6.055 6.445 5,415 8,200 12,696 7,050 17,630 22,040 2.500
KF060XP0 6.000 7.500 6.555 6.945 5,651 8,630 14,311 7,620 19,050 25,710 2.700
KF065XP0 6.500 8.000 7.055 7.445 5,880 9,050 15,993 8,180 20,460 29,660 2.900
KF070XP0 7.000 8.500 7.555 7.945 6,103 9,460 17,744 8,750 21,870 33,890 3.200
KF075XP0 7.500 9.000 8.055 8.445 6,323 9,870 19,568 9,310 23,280 38,410 3.400
KF080XP0 8.000 9.500 8.555 8.945 6,535 10,260 21,453 9,880 24,690 43,200 3.500
KF090XP0 9.000 10.500 9.555 9.945 6,947 11,030 25,410 11,000 27,510 53,640 3.900
KF100XP0 10.000 11.500 10.555 10.945 7,342 11,770 29,608 12,130 30,330 65,210 4.300
KF110XP0 11.000 12.500 11.555 11.945 7,721 12,490 34,032 13,260 33,150 77,910 4.800
KF120XP0 12.000 13.500 12.555 12.945 8,084 13,190 38,666 14,390 35,970 91,730 5.200
KF140XP0 14.000 15.500 14.555 14.945 8,775 14,530 48,556 16,650 41,620 122,800 6.000
KF160XP0 16.000 17.500 16.555 16.945 9,421 15,820 59,200 18,900 47,260 158,300 7.100
KF180XP0 18.000 19.500 18.555 18.945 10,028 17,060 70,537 21,160 52,900 198,400 7.900
KF200XP0 20.000 21.500 20.555 20.945 10,602 18,250 82,528 23,420 58,550 243,000 8.900
KF250XP0 25.000 26.500 25.555 25.945 11,909 21,070 115,037 29,060 72,650 374,200 10.900
KF300XP0 30.000 31.500 30.555 30.945 13,065 23,720 150,708 34,700 86,760 533,600 13.000
KF350XP0 35.000 36.500 35.555 35.945 14,100 26,220 189,106 40,350 100,900 721,200 15.100
KF400XP0 40.000 41.500 40.555 40.945 15,034 28,620 229,832 45,990 115,000 937,100 17.200
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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
KF series, type A
KF series, type C
Thin section bearing selector
Reali-Slim® open & sealed 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
3/8" balls

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

3F = 0.080
Bearing corners are
normally chamfered