Shop All Parts › UHMW16-1 - Spike Closing Wheel Assembly UHMW16-1 - Spike Closing Wheel Assembly $82.50 Spike Closing Wheel Assembly, Consists of UHMWPE Spike ring, 2 Nylon Rims, 40mm double row ball Bearing with double lips seal. Spike Closing Wheel Assembly, Consists of UHMWPE Spike ring, 2 Nylon Rims, 40mm double row ball Bearing with double lips seal. Add To Cart Added!