Catalogue
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Bearing Tables
Open
• Metric 1.0 - 3.0 mm
• Metric 4.0 - 6.0 mm
• Metric 7.0 - 10.0 mm
• Inch.0400" - .7500"
Open Flanged
• Metric 1.0 - 3.0 mm
• Metric 4.0 - 5.0 mm
• Metric 6.0 - 10.0 mm
• Inch .0400" - .5000"
Shielded
• Metric 1.5 - 3.0 mm
• Metric 4.0 - 5.0 mm
• Metric 6.0 - 10.0 mm
• Inch .0469" - .7500"
Shielded Flanged
• Metric 1.5 - 3.0 mm
• Metric 4.0 - 5.0 mm
• Metric 6.0 - 10.0 mm
• Inch .0469" - .5000"
Engineering
• Assembly and Handling
• Bearing Fatigue
& Calculation
• Bearing Types
• Cages
•
Internal Geometry
• Limiting Speeds
• Load Ratings
• Materials
• Protective Closures
• Shaft and Housing Fits
• Tolerances
RotoPrecision Miniature and Instrument Bearings
Cages and Ball Retainers
The cage or ball retainer is used to separate the balls
and to maintain uniform spacing. Two types of cages are
standard in RotoPrecision miniature and instrument
bearings: the metal crown type and the two-piece,
loosely clinched ribbon type cage. The standard material
for both cages is 400 series stainless steel. The crown
type cage offers good wear and smooth running
characteristics and can be offered in molded plastic in
some cases.
The metal ribbon cage is the most common ball retainer
in miniature and instrument bearings. The closed pocket
design provides durable wear and the loose clinching is
good for low starting torque. Various other cage options
can be designed with the assistance of our
Application Support staff.
