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Rolling Element Type:

Bore:

Outside Diameter:

Outer Ring Width:

Dynamic Radial Load:

Static Radial Load:

Seals / Shielding:

Help with Mast Guide Bearings specifications:

Rolling Element Type
   Rolling Element Type       
   Your choices are...         
   Balls       The rolling and load-bearing elements of the bearing are spherical in shape. A cage may be used to separate rolling elements from colliding in the raceways. 
   Rollers       The rolling and load-bearing elements of the bearing are cylindrical in shape. A cage may be used to separate rolling elements from colliding in the raceways. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Dimensions
   Bore       The bearing industry uses a standard numbering system for bearings with metric-diameter bores. If the bore is hexagonal, enter the dimension across the flats. If the bore is tapered, enter the smaller diameter. For bore sizes 04 and up, multiply the bore size by 5 to identify the bore diameter in millimeters (mm). Refer to the table below. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Outside Diameter       Enter the outside diameter of the bearing. For housed bearings, include the housing. For flanged bearings, exclude the flange. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Outer Ring Width:       The width of the outer ring. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Operating Specifications Do not over-specify. Enter only those loads that apply for bearing type and application. Static and dynamic loads may not be available for all bearing types and suppliers.
   Dynamic Radial Load       Dynamic radial load is the calculated, constant, radial load which a group of identical bearings can endure theoretically for a rating life of one million revolutions of the inner ring. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Static Radial Load       Static radial load is the maximum radial load a bearing can endure without excessive, permanent deformation. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Seals / Shielding
   Seals / Shielding:      Seals and shields provide protection from contamination and as a retainer for lubricant. Seals provide better protection and lubricant containment than shields, but have lower maximum speed capabilities.
   Your choices are...         
   None (Open Bearing)       Bearing is open; it has no seals or shields. Open bearings offer no protection from contamination or lubricant containment, but have higher maximum speed capabilities than bearings with seals or shields. 
   Single Seal
Bearing Diagram pointing out seal(click to enlarge)Courtesy of GlobalSpec, Inc.
 
     Bearing has one seal to prevent the ingress of dirt. 
   Double Seal       Bearing has two seals to prevent the ingress of dirt. 
   Single Shield
Bearing Diagram pointing out shield(click to enlarge)Courtesy of GlobalSpec, Inc.
 
     Bearing has one shield to prevent the ingress of dirt. 
   Double Shield       Bearing has two shields to prevent the ingress of dirt. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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