Wheel Hub Bearing INA Drawn cup roller bearings with open end HK2516 2RS L271 BEARING CUP RALUMIN TS (Single Row Tapered Roller Bearings) (Imperial) HH221440 HH221410 TFL. One New Aftermarket Replacement Tapered Roller Bearing Cup for Caterpillar (Cat) Equipment This tapered roller bearing cup (outer race) serves as the outer raceway for the tapered roller bearing assembly, pairing with a cone (inner ring assembly, sold separately) to handle both radial and axial loads in Caterpillar construction and agricultural equipment. The cup seats into the housing or casing and provides the precision surface on which the tapered rollers roll. Specifications Outside Diameter: 7. 500 in (190. 5 mm) Cup Width: 1. 8125 in (46. 038 mm) Type: Single Tapered Roller Bearing Cup Series: HH221400 Material: Chrome Steel Standard Tolerance Compatible Models Caterpillar Motor Graders: 12E, 12F, 140, 16 Caterpillar Bulldozers Track Type Tractors: D9G, D9H Caterpillar Scrapers: 594, 594H, 621, 623B Caterpillar Compactors Soil Compactors: 824, 824B, 825C, 826C Caterpillar Wheel Loaders: 980C, 980F, 988, 994, 994D Caterpillar Off Highway Trucks Other: 120B, D35C, D35HP, D40D, D44B, D550B Replaces Part Number(s): 1B6573, 3F5920, 1B5673 Aftermarket Interchange Numbers HH221410 (Timken Bower Koyo NTN), 74850 New aftermarket replacement part not remanufactured, not used.