Pitchlign Caged Roller Followers - With and Without Seals
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Series SRF without seals
Part
Number: SRF 20
Without Seals
D. Max: 1.000
Inside Diameter Nominal: 1/2
Corner Radius: 0.04
Approx Weight [lbs]: 0.066
Matching Inner Rings: —
Critical Angle [deg] 2: 60.0
Speed Limit [rpm] 3: 10900
Roller D Min: 0.999
Roller B Min +.000/-.005: 0.495
Inside Dia. Min: 0.5005
Inside Dia. Max: 0.5014
Bearing Dynamic Capacity C [lbf]: 1900
Bearing Static Capacity Co [lbf] 1: 2200
Track Capacity at 40 Rc [lbf]: 1280
Max: 0.5000
Min: 0.4996
All dimensions
are in inches
Normal operating
loads should not exceed the bearing dynamic capacity
Roller followers
used without inner rings require a shaft with minimum hardness
of Rc 58 and surface finish of 16 rms or better
Standard configuration
of roller follower series SRF-- SS is with seal lips facing
outward. To specify roller followers with seal lips facing
inward, replace suffix -SS with suffix -RR. (example: SRF
30 RR)
- Bearing
Static Capacity provided for comparison only
- For oscillatory
application with angle of oscillation less than critical
angle, consult RBC engineering department for revised
fatigue calculation
- Speed limit
of sealed roller followers is determined by maximum seal
surface speed.
For roller followers without seals, speed limit may be
increased by 30% with oil lubrication.
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