When selling this item, it is important to know important dimensions so the buyer knows if they are selling their purpose is suitable. Check resilience, check stem size. Wheel size, check. The height from the bottom of the wheel to the top of the base plate (the hex plate that holds the ball bearings) is no, not there. The height of a pulley is critical to the correct operation of the equipment to which it is attached. I had to take a few measurements and take a chance that it would fit. Luckily it did, but I had my doubts. And 3/8 x 16 x 1-1/2 inches will not fit. It should be 3/8-16 x 1-1/2": 3/8" diameter, 16 threads per inch.