Apron

SN400-SN500-SN630-SN710 longitudinal lead screw half nut replacement
Gallery
SN400-SN500-SN630-SN710 longitudinal lead screw half nut replacement

Lathe maintenance

SN400-SN500-SN630-SN710 longitudinal lead screw half nut replacement

Guide for replacing the nuts in the holders When cutting a lot of threads on your SN400-SN500-SN630-SN710 lathe, the half nuts will wear over time. This is standard, the half nut is a wearable part and needs replacing time to time. Compared to the SN40-50-63-71 the half nut on the SN400-SN500-SN630-SN710 lathes is [...]

juraj.tilesch2026-04-28T16:43:09+02:00Lathe maintenance|

3 point vs 5 point rapid traverse cam
Gallery
3 point vs 5 point rapid traverse cam

Parts identification

3 point vs 5 point rapid traverse cam

3 point vs 5 point rapid traverse cam TOS Trenčín introduced the rapid feed traverse on their SN lathes, specifically on the late version of the B model. The main components of the first rapid feed was the evolved worm 883036, the 3 point cam 883147, the bushing 883035, the gear wheel 883025 [...]

juraj.tilesch2026-04-28T16:41:24+02:00Parts identification|