Main Bearings

Crankcase Main Bearings Left 1912-1916 Twins

Individual Rollers for Main Bearings

Snap Rings for Engine Main Bearings

Lock Screws for Left Bearing Races

Lock Screws for Right Bearing Races

Crankcase Bearing Races Left

Crankcase Bearing Races Right

The Cyclery Crankcase and Crankpin Roller Cages - Big Twins 1915-1936

Crankcase Roller Bearing Collars - Big Twins 1925-1936

Crankcase Roller Bearings - Big Twins 1936-1954

Crankcase Roller Bearings - 45”/750cc Flatheads

Flywheel Thrust Washer Set

Crankcase Roller Bearings: Big Twin 1999→

Sprocket Shaft Tapered Roller Bearings

Adjusting Spacers for Sprocket Shaft Tapered Roller Bearings

Pinion Shaft Needle Bearings: Big Twin 1987-1999

Pinion Shaft Roller Bearings: K/XL 1954-1977 and Big Twin 1954-1957

Pinion Shaft Roller Bearings: Sportster 1987-2020

Pinion Shaft Needle Bearings: Sportster

Pinion Shaft Roller Bearings: Big Twin 1958-1986
Main bearings: roller bearings for the crankshaft
The classic Harley-Davidson V-Twin engine has crankshafts with roller bearings: with available oversize rollers to compensate for wear, or tapered roller bearings from industrial production, which are completely replaced. Roller bearings are well suited to absorb flexing forces of the crankshaft, which only has two bearings. Roller bearings are also more tolerant of misalignment of the two shafts.

Have any questions?
Our service team will be glad to help out: Mondays - Thursdays 08:00-17:00 CET, Fridays 08:00-16:00 CET, Phone: +49 / 931 250 61 16, eMail: service@wwag.com