1413.06.08 Cam Followers.qxd - RBC Bearings

ApplicationRequirementsDynamicloadingMODERATEHEAVYVERY HEAVYShock loadingHigh static loadsContaminationMaintenance freeLong lifeMisalignmentLoad sharingAdjustabilityHigh speedLow frictionCircular track➤Cam Follower Selection GuideStandardstud✔Needle Roller Cam FollowersHeavystud✔✔✔Yoketype✔✔✔Cam-CentricCrownedOuter RingCagedRollerFollowerRBCRollerSee pages 14 - 15 20 - 21 24 - 25 18 - 19 * 26 - 29 6 - 11* Standard stud - page 16 Heavy stud - page 22 Yoke type - page 24✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔®applications and provides for flow-through lubrication.Caged roller followers normally mount directly on ahardened and ground pin. RBC offers a line of PrecisionGround Inner Rings (page 28) to simplify application ofcaged roller followers. More information on shaft andmounting considerations is provided in part 5.4 of thetechnical section (page 45).Material Handling Rollers and SheavesRBC offers a wide range of rollers and sheaves specificallydesigned for material handling applications—lifting,conveying, and power transmission. All RBC rollers andsheaves use heavy duty roller bearing construction whichprovides maximum dynamic and shock capacity forlonger service life than ball bearing designs.Lift Truck, Crane and Conveyor Rollers (page 30, 31)commonly referred to as mast guide rollers or carriagerollers, are used in lift truck masts and carriages, travellingcranes, and conveyor lines, where maximum capacity in ananti-friction roller is required. Sealed, lubricated-for-lifeversions are available.Chain Sheave and Sprocket Idlers (page 32, 33) forBL-leaf and ANSI “rollerless” roller hoisting chain areessential components of hoisting systems such as lifttrucks and car lifts. They are also used as track rollers andas tensioners in power transmission chain drives.Airframe Track Rollersand Needle BearingsAirframe track rollers and needle bearings are designedfor high load carrying capability, light weight, and slowrotation or oscillatory motion. The exposed surfaces areplated to provide corrosion resistance. They are used inaircraft flap, slat and control applications, and in numerousnon-aircraft applications.Series NBC needle bearings (page 34) offer highcapacity, thin cross section and unitized construction.They are commonly used in pivots and linkages.Series NBE and NBK needle bearings (page 36, 37)provide a spherical aligning outer ring to allow for misalignment.Applications and performance characteristicsare otherwise similar to series NBC.Series NBF and NBL track rollers (page 38, 39) aredesigned with heavy outer ring cross section for trackroller applications. They offer a corrosion resistantalternative to conventional yoke type cam followers.5