Roller Bearing Company Inc. - RBC Airframe Bearing - ATL Series / SAE AS21439

This is a non-separable unit, comprising an inner ring, needle rollers, retaining washers, seal/thrust washers, and an extra-thick outer ring to withstand heavy rolling loads. The end washers are fastened to the inner ring. Type ATL has two rows of rollers. The seals on the ATL bearings are located in counterbores of the outer ring and seal against the O.D. of the end washers, providing a good retention of lubricant and exclusion of foreign material. Seal/thrust washers, made of a self-lubricating resin material, separate the steel thrust surfaces, extending the life of lubricant and bearing. Grooves and holes for relubrication are provided in the inner ring only, since the outer ring must serve as a roller. For protection from corrosion under heavy rolling loads, the O.D. of the bearing is chrome plated. Other exposed surfaces, as mounted, are cadmium or zinc-nickel plated. Inner rings are oxided.

Unit of Measure

Items	ATL6 RBC Airframe Bearing - ATL Series / SAE AS21439	ATL8 RBC Airframe Bearing - ATL Series / SAE AS21439	ATL10 RBC Airframe Bearing - ATL Series / SAE AS21439	ATL12 RBC Airframe Bearing - ATL Series / SAE AS21439	ATL16 RBC Airframe Bearing - ATL Series / SAE AS21439
Industry Standards/Certifications	N/A SAE AS21438
Type	N/A Track Type
Bore (B)	N/A 0.38 in	N/A 0.50 in	N/A 0.63 in	N/A 0.75 in	N/A 1.00 in
Outside Diameter (D)	N/A 1.13 in	N/A 1.38 in	N/A 1.63 in	N/A 1.88 in	N/A 2.38 in
Inside Ring Width (W)	N/A 1 in	N/A 1.25 in	N/A 1.5000 in	N/A 1.750 in	N/A 2.250 in
Shaft Fillet	N/A 0.022 in	N/A 0.032 in	N/A 0.032 in	N/A 0.032 in	N/A 0.032 in
Style	N/A Needle Roller
Series	N/A RBC®
Material	N/A High carbon chrome steel
Cage Material	N/A Steel
Seal Material	N/A Sealed
Finish	N/A Cadmium
Enclosure	N/A Double Sealed
Precision Rating	N/A Not Rated
Bore Shape	N/A Round
Lubrication Type	N/A Lubrication Groove & Hole
Number of Rows	N/A 2
Speed [Max]	N/A 100 rpm
Dynamic Load Rating	N/A 7130 lbf	N/A 12500 lbf	N/A 19900 lbf	N/A 28500 lbf	N/A 44900 lbf
Limit Load Rating	N/A 7130 lbf	N/A 12500 lbf	N/A 19900 lbf	N/A 28500 lbf	N/A 44900 lbf
Weight	N/A 0.239 lb	N/A 0.437 lb	N/A 0.73 lb	N/A 1.13 lb	N/A 2.31 lb
Applications	N/A Used in aerospace and industrial applications that necessitate the most stringent tolerances.
Additional Product Information 1	N/A RBC Airframe Track Roller Bearing manufactured by RBC Bearings. ~~RBC Bearings manufactures highly engineered precision bearings, components and essential systems for the industrial, defense and aerospace industries. Founded in 1919, and now a publicly-traded company (NYSE: RBC), RBC currently has 52 facilities in 10 countries (34 in the USA), of which 37 are manufacturing facilities.
Additional Product Information 2	N/A Designed for use as track rollers to withstand heavy rolling loads. ~To realize full radial capacity, mount bearing on high strength bolt. ~Sealed and has 2 rows of needle rollers and 2 internal thrust washers. ~Crowned O.D. to accommodate some misalignment. ~This bearing is only for use in an aerospace application when purchased from an Authorized RBC Aerospace Distributor or other Authorized RBC Aerospace Seller with proper Aerospace Certification(s).