Roller Bearing for Timken Tapered 34478
Roller Bearing for Timken Tapered 34478
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One New Aftermarket Replacement Tapered Roller Bearing Cup Fits Case/International Harvester and Fits Caterpillar Equipment
This aftermarket replacement tapered roller bearing cup (outer ring / outer race) is a direct replacement for Timken part number 34478. The cup serves as the outer raceway in a single tapered roller bearing assembly, pairing with a separately purchased cone (inner ring) to support both radial and axial loads. Common applications include axle assemblies, differentials, gearboxes, and wheel hubs on construction and agricultural equipment. This part number is also cataloged under the NSN 3110-00-100-0575 designation, confirming broad industrial use.
Specifications
- Type: Single Tapered Roller Bearing Cup (Outer Ring)
- Outside Diameter: 4.7810 in (4.7812 in nominal)
- Cup Width: 0.6875 in
- Design: Straight outside diameter, open configuration
- Material: High-alloy steel
- Standard: Imperial (inch) series
Compatible Equipment
Fits Case / Fits Case IH: Various tractor, construction, and agricultural equipment models -- verify fitment by cross-referencing OEM part numbers below.
Fits Caterpillar (Fits CAT): Various construction and industrial equipment models -- verify fitment by cross-referencing OEM part numbers below.
Replaces Part Number(s):
34478, 1P2566, F9803
Aftermarket Interchange Numbers
K34478, LF777, R11957, JT9204, 572901R1, 640221B, 950142, 95-0142, XC1482D, 103S24, 11957, 21072, 231014, 390771, 500624, 1228Q641, 1228-Q-641, 13408, 1748P, FF-B-187/1, FFB187/01
New aftermarket replacement part - not remanufactured, not used.
