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.
When specifying this type of bearing for use with axial or moment loads combined with radial loads application speed (rpm) is a real concern.
Please contact FRB Bearings for information on combined load and limiting speeds.
Product Category:Angular Contact Bearings
Type:Four Point Contact Thin-section
Application:Aerospace (optional feature); Instrument / Miniature (optional feature); Medical / Dental (optional feature); Military (optional feature); Semiconductor
Bore:4.0000 to 12.0000 inch (101.600 to 304.800 mm)
Outside Diameter:4.7500 to 12.7500 inch (120.650 to 323.850 mm)
Outer Width:0.5000 inch (12.700 mm)
Static Radial:5262 to 14884 lbs (2386 to 6750 kg)
Dynamic Radial:881 to 1776 lbs (400 to 805 kg)
Dynamic Axial:2216 to 4428 lbs (1005 to 2008 kg)
Seals / Shields:Single Shield