Bearings Needed For 1 Inch Diameter Spindle

Question:

I lost the old bearings, so no numbers. The spindle is 1inch but I dont know what BT8 is. The id of the hub is 2. do you think this bearing kit will work for me? Also how does one measure a tire? 13inch 14inch etc.

asked by: William C

Expert Reply:

I did some research, and wasn't able to determine what BT8 actually means or where the term came from. Perhaps it was the stock number of the original spindle of that size.

If your spindle is 1 inch in diameter, and not tapered, the #BK1-100 bearing kit you mentioned is probably the one you need. You can confirm this by knocking out the inner and outer bearing races and looking at the reference numbers. If the races are marked L44610, the # BK1-100 is the correct bearing kit.

I'll link you to an FAQ article about measuring tires. If you look at the tire size molded into the tire sidewall, the last two digits of the tire size are the wheel diameter. For instance, a ST175/80-13 tire would have a 175mm tread width, a section height that's 80% of the 175mm width that's mounted on a 13 inch wheel.

expert reply by: Mike L