BB Superprec 902 Ball Bearings

Description

Timken®, MM55BS120QU, Super Precision Angular Contact Ball Bearing, Cylindrical, 2.165 in Bore, 4.724 in OD, 4 Rows, 3.149 in Width, 60 deg Contact Angle, Open Closure, Steel Bearing, Phenolic Cage

Features:

• Tighter preload tolerances for chatter-free cutting
• Tighter width tolerances for easy fit without regrinding end caps
• Pre-lubricated with high-performance grease
• Broad availability for increased machine uptime
• Clean steel supports longer service life
• To maximize axial rigidity
• Timken bearings incorporate 60 deg contact angles and a maximum complement of balls

Applications:

Perfect choice for high-speed speed applications and ultra-precision equipment that requires tight tolerances and super-fine surface finishes

Standards/Approval:

• ABEC 9
• ISO P2

Bearing Material	Steel
Bore Diameter	2.165 in
Cage Material	Phenolic
Closure Type	Open
Contact Angle	60 deg
Number of Rows	4
Outside Diameter	4.724 in
Type	Cylindrical
Width	3.149 in
Manufacturer	Timken

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