• NAME - ID 1/2" Flanged Precision Ball Bearing, Package fo 4.
• APPLICATION - Mounting type 1/2" bore, for use with flat free wheels up to 1-3/8" hub.
• ADVANTAGE - Rotate smooth high load capacity, Low friction and vibration, long service life.
• SEAL - Double sealed to prevent contaminants from entering and saving grease, Lifetime maintenance-free.
• SIZE - ID 0.500" x OD 1.375" x Total height 0.500", Dynamic load about 4900 lbs.

Grease inside the seal, in the absence of one end of the flange inside the seal. (To check the grease, open the double-sided seal)

Known Application Parts # 

Marathon: 60621, 60021, 60020
Exmark: 1-513009, 1-631560, 513009, 631560
Prime line: 7-07476
Stens: 215-020, 230-241
Sunbelt: B1BE21, B1SB8351