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


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Silverthin Bearing JSB 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 JSB Series - Type X
Dynamic Axial 1132 to 2347 lbs (513 to 1064 kg)
Design Units Inch
Type Four Point Contact
Outer Ring Width 0.3125 inch (7.937 mm)
Static Radial 2348 to 6913 lbs (1065 to 3135 kg)
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