Spherical Roller Bearings 21311MB
Bearing number : 21311MB
Size mm : 55x120x29
Brand : AST
Bore Diameter mm : 55
Outer Diameter mm : 120
Width mm : 29
Bearing dimensions and specification in brand catalogue :
dimensions in mm
Bearing Type - straight bore
Bore Dia d - 55.0000
Outer Dia D - 120.0000
Width B - 29.0000
Radius min rs - 2.000
Dynamic Load Rating Cr - 133,000
Static Load Rating Cor - 137,000
Max Speed Grease X1000 RPM - 3
Max Speed Oil X1000 RPM - 4
Weight g - 1,740.00
Material - 52100 Chrome steel, or equivalent
Inner ring guided, machined brass cage.
Unless otherwise specified, the internal radial clearance is "C0" or "C Normal".
Basic Radial Load Factor "e" = 0.26
Basic Radial Load Factor "Y1" = 2.5
Basic Radial Load Factor "Y2" = 3.8
Basic Radial Load Factor "Y0" = 2.5
Catalogue,Brandslist,,Bearing 21311MB AST
Pioneer Machinery overhung Bearing 21311MB AST comply either with ISO, ASME or API standards. These Bearing 21311MB ASTs are available in different designs to meet the requirements for chemical, API, slurry and solids handling processes, as well as industrial processes. Different configurations guarantee reliable and efficient Bearing 21311MB AST processes. Numerous sizes, hydraulics and material combinations are particularly well suited for use in applications where uncompromising reliability and efficiency over a wide flow range are key.
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In-depth knowledge of automotive manufacturing operations and process optimization
Pioneer Machinery deliver comprehensive enterprise-wide solutions and services to help automotive manufacturers and their products。
Pioneer Machinery Bearing 21311MB AST realized this substantial improvement in performance by optimizing the internal geometry and surface finish of all contact surfaces, combining the extremely clean and homogenous steel with a unique heat treatment, improving the cage, roller profile and the geometry of the raceways.