The Timken 78551 is an outer ring (cup) for a single-row imperial tapered roller bearing, featuring an outside diameter of 5.513 inches (140.03 mm) and a width of 0.926 inches (23.52 mm). 
Specifications & Features
  • Type: Single-row tapered roller bearing cup (outer ring) 
  • Outside Diameter (OD): 5.513 inches (140.0302 mm) 
  • Width (C): 0.9260 inches (23.5204 mm) 
  • Material: Steel 
  • Weight: ~2.03 lbs 
  • Load Capacity: Designed to handle combined radial and axial loads when paired with a matching cone.

Please note that some of the boxes are not in the best shape. This is just due to being old stock. You are buying the highest quality bearing from Timken when they were all manufactured in the USA. If a yellowish oil substance is on the bearing, it is just an anti corrosion coating from the factory!

Parts come as shown and the pictures are the exact item you will receive. I offer 30 day warranty or refund. If unsure if this is the correct bearing you need, please contact us and we will make sure it’s right BEFORE ordering!