Polaris Rear Axle 250 6x6 Bearing Inner Diameter - 1 1/2 inch (1.5") the 6021NR inner diameter is

the 6021NR inner diameter is 105mm

S689ZZ Premium ABEC-5 Ceramic Stainless Steel Ball Bearing

Dimensions (inches) d H L A J N N1 H1 H2 L1 B S 3 15/16" 5 33/64" 19 9/32" 4 23/32" 14 31/32" 1 13/32" 1 31/32" 1 13/16" 10 3/4" 5 1/2" 4-1/4" 1-21/32"

this is self lubricated bearings (bearing is already greased)

🟢 Dynamic Load Rating Cr: 680

Polaris Rear Axle 250 6x6 Bearing Inner Diameter - 1 1/2 inch (1.5") the 6021NR inner diameter isPolaris Rear Axle 250 6x6 ATV Rear Axle Set of 2 Ball Bearings Set of 2 ball bearings for use in the ATV rear axle, additionally, these bearings come pre lubricated with grease for smooth operation, each bearing has 2 rubber seals to protect the bearing from dust or any possible contamination, bearings are packed in the original manufacturer bag, Made from high strength chrome steel for durability and performance. ATV Rear Axle Bearings Deep Groove