National Precision Bearing, Inc. Silverthin Bearing JSA Series - Type X


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Silverthin Bearing JSA Series - Type X
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 SilverThin engineering for information on combined load and limiting speeds.
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Technical Specifications

  National Precision Bearing, Inc.
Product Category Ball Bearings
Product Name Silverthin Bearing JSA Series - Type X
Dynamic Axial 793 to 1652 lbs (360 to 749 kg)
Design Units Inch
Type Four Point Contact
Outer Ring Width 0.2500 inch (6.350 mm)
Static Radial 1712 to 5122 lbs (776 to 2323 kg)
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