Pitchlign Caged Roller Followers - With and Without Seals

IntroductionSelection GuideEngineering DataInterchangeCalculate Your SavingsReduce Your inventoryBrochure

Series SRF without seals

Part Number: SRF 80
Without Seals

D. Max: 4.000
Inside Diameter Nominal: 2 1/4
Corner Radius: 0.10
Approx Weight [lbs]: 2.750
Matching Inner Rings: IR 8405, IR 8405 D
Critical Angle [deg] 2: 28.8
Speed Limit [rpm] 3: 2300
Roller D Min: 3.999
Roller B Min +.000/-.005: 1.245
Inside Dia. Min: 2.2511
Inside Dia. Max: 2.2521
Bearing Dynamic Capacity C [lbf]: 12700
Bearing Static Capacity Co [lbf] 1: 26700
Track Capacity at 40 Rc [lbf]: 12950
Max: 2.2500
Min: 2.2494

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)

  1. Bearing Static Capacity provided for comparison only
  2. For oscillatory application with angle of oscillation less than critical angle, consult RBC engineering department for revised fatigue calculation
  3. 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.