KM31 SKF Lock Nut M155x3mm Sealed Precision-machined 17-tooth sprocket for 51

Precision-machined 17-tooth sprocket for 51 Simplex roller chain

Inside d: 110

Cone width B: 17

Series: 32304M

Series 129

KM31 SKF Lock Nut M155x3mm Sealed Precision-machined 17-tooth sprocket for 51KM and KML lock nuts are used to locate bearings onto a shaft. They have metric threads and four equally spaced slots located around their circumference to accommodate a spanner. They should be locked by a lock washer to prevent unintentional loosening. KM and KML lock nuts can be reused, provided they are not damaged. Simple, stable and reliable fastening element Easy to install and remove Reusable with a new lock washer Available for thread M 10x0.