RBC Bearings Inc.
RBC Bearings Inc.
Address: One Tribology Center
Oxford, CT 06478
Phone: (203) 267-7001
Fax: (203) 267-5000
Email: AeroInfo@RBCbearings.com
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The X-Type, or 4-point contact, ball bearing is ideal for moment loading. X-Type bearings are designed with gothic arch raceways creating 4 contact points between the balls and the raceways. This design is excellent for moment loading and reversing axial loading. The X-Type bearing can be used for other light loading conditions, but is not recommended in place of the C- or A-Type bearing for pure radial loads.

• Large Diameter
• Light Weight
• Small Cross Section
• Snap-Over Ball Separator
Thin-Section-Ball-Bearings-4-Point-Contact,-X-Type
Unit of Measure
1 2 3 4 5 

Item #

Bore (B)

Outside Diameter (D)

Outside Ring Width (W)

Inside Ring Width

Housing Fillet

Dynamic Radial

Static Radial

KA020XP0-RBC N/A 2.00 in N/A 2.50 in N/A 0.25 in N/A 0.25 in N/A 0.025 in N/A 514 lbf N/A 680 lbf
KA025XP0-RBC N/A 2.50 in N/A 3.00 in N/A 0.25 in N/A 0.25 in N/A 0.025 in N/A 583 lbf N/A 830 lbf
KA030XP0-RBC N/A 3.00 in N/A 3.50 in N/A 0.25 in N/A 0.25 in N/A 0.025 in N/A 643 lbf N/A 990 lbf
KA035XP0-RBC N/A 3.50 in N/A 4.00 in N/A 0.25 in N/A 0.25 in N/A 0.025 in N/A 701 lbf N/A 1140 lbf
KA040XP0-RBC N/A 4.00 in N/A 4.50 in N/A 0.25 in N/A 0.25 in N/A 0.025 in N/A 756 lbf N/A 1290 lbf
KA042XP0-RBC N/A 4.25 in N/A 4.75 in N/A 0.25 in N/A 0.25 in N/A 0.025 in N/A 783 lbf N/A 1370 lbf
KA045XP0-RBC N/A 4.50 in N/A 5.00 in N/A 0.25 in N/A 0.25 in N/A 0.025 in N/A 809 lbf N/A 1440 lbf
KA047XP0-RBC N/A 4.75 in N/A 5.25 in N/A 0.25 in N/A 0.25 in N/A 0.025 in N/A 834 lbf N/A 1520 lbf
KA050XP0-RBC N/A 5.00 in N/A 5.50 in N/A 0.25 in N/A 0.25 in N/A 0.025 in N/A 859 lbf N/A 1590 lbf
KA055XP0-RBC N/A 5.50 in N/A 6.00 in N/A 0.25 in N/A 0.25 in N/A 0.025 in N/A 908 lbf N/A 1750 lbf
KA060XP0-RBC N/A 6.00 in N/A 6.50 in N/A 0.25 in N/A 0.25 in N/A 0.025 in N/A 1371 lbf N/A 2560 lbf
KA065XP0-RBC N/A 6.50 in N/A 7.00 in N/A 0.25 in N/A 0.25 in N/A 0.025 in N/A 1435 lbf N/A 2760 lbf
KA070XP0-RBC N/A 7.00 in N/A 7.50 in N/A 0.25 in N/A 0.25 in N/A 0.025 in N/A 1498 lbf N/A 2970 lbf
KA075XP0-RBC N/A 7.50 in N/A 8.00 in N/A 0.25 in N/A 0.25 in N/A 0.025 in N/A 1559 lbf N/A 3170 lbf
KA080XP0-RBC N/A 8.00 in N/A 8.50 in N/A 0.25 in N/A 0.25 in N/A 0.025 in N/A 1618 lbf N/A 3370 lbf
KA090XP0-RBC N/A 9.00 in N/A 9.50 in N/A 0.25 in N/A 0.25 in N/A 0.025 in N/A 1732 lbf N/A 3780 lbf
KA100XP0-RBC N/A 10.00 in N/A 10.50 in N/A 0.25 in N/A 0.25 in N/A 0.025 in N/A 1841 lbf N/A 4190 lbf
KA110XP0-RBC N/A 11.00 in N/A 11.50 in N/A 0.25 in N/A 0.25 in N/A 0.025 in N/A 1362 lbf N/A 3410 lbf
KA120XP0-RBC N/A 12.00 in N/A 12.50 in N/A 0.25 in N/A 0.25 in N/A 0.025 in N/A 1433 lbf N/A 3720 lbf
KAA10XL0-RBC N/A 1.00 in N/A 1.38 in N/A 0.1875 in N/A 0.1875 in N/A 0.015 in N/A 270 lbf N/A 290 lbf
KAA15XL0-RBC N/A 1.50 in N/A 1.88 in N/A 0.1875 in N/A 0.1875 in N/A 0.015 in N/A 310 lbf N/A 400 lbf
KAA17XL0-RBC N/A 1.75 in N/A 2.13 in N/A 0.1875 in N/A 0.1875 in N/A 0.015 in N/A 322 lbf N/A 460 lbf
KB020XP0-RBC N/A 2.00 in N/A 2.63 in N/A 0.3125 in N/A 0.3125 in N/A 0.032 in N/A 758 lbf N/A 930 lbf
KB025XP0-RBC N/A 2.50 in N/A 3.13 in N/A 0.3125 in N/A 0.3125 in N/A 0.040 in N/A 848 lbf N/A 1140 lbf
KB030XP0-RBC N/A 3.00 in N/A 3.63 in N/A 0.3125 in N/A 0.3125 in N/A 0.032 in N/A 933 lbf N/A 1340 lbf
Unit of Measure
1 2 3 4 5