Finding Compound Feed Sewing Machines for Sale

Power and Durability

One of the main benefits of using heavy duty thread for sewing leather is its strength. Leather can put a lot of tension on the stitching, especially if it is being used for items like bags, shoes, or belts that will be frequently used and put under stress. Heavy duty thread is less likely to break or fray under this tension, ensuring that your finished product will be long-lasting and reliable.

An oil seal is designed to perform three major functions: to prevent lubricants from leaking outside the seal even under high pressure, to act as a barrier to retain the lubricating oil, and to prevent dirt and other contaminants from entering the unit.

Conventional oil seals

If the seal is being fitted to original equipment you may have some influence over the shaft and housing bore finish, but if you are replacing a worn seal you still need to take into account the condition of these 2 essential parts. Check for sharp edges and burrs – particularly on the shaft and housing chamfers or you could ruin the seal before you start up. If the shaft is too worn consider using an M Barnwell Services Shaft Repair Kit.