This 45 x 52 x 20 mm (HK4520) bearing is a needle roller bearing. The HK4520 inner diameter is 45 mm, the HK4520 outer diameter is 52 mm, the HK4520 width is 20 mm.
This bearing is Open, it does not have seal on neither side.
NZ $7.00 each
In stock for delivery within 1 working day