decorative punched metal panels

(5) The surface finish of the shaft directly affects the service life of the oil seal, that is, the higher the shaft finish, the longer the service life of the oil seal.

Common Oil Seal Failure Causes

Refit all the components in the reverse order of dismantling.

Metal inserts must be carefully prepared in operations involving cleaning and roughening surfaces (grit-blasting or phosphatizing), stamping out parts, application of primer (usually by dipping), and curing of the primer (often by baking for a short time at moderate temperature).³ Primer curing minimizes the possibility of wiping primer off portions of the insert by stock flow during molding. The treated metal inserts must be used within a relatively short time (usually a day or less), so that functionality necessary for bonding is not lost by reaction with moisture in the air. Freshness of the primer surface is particularly important for peroxide-cured and base-resistant fluoroelastomer compounds. Compound formulation should be adjusted to attain good adhesion.

You may need to turn the crankshaft so that it protrudes less. Turn the front pulley bolt with a spanner or socket.

Figure 5: Shaft surface with and without lead marks

With the vast options of rotary shaft seals available it can be difficult to understand them and choose the correct seal for your machines. That is why are experts in Dublin and Cork are on hand to pick the right style, material, and size of the oil seal you need. Contact us today your seal specialist by email or by phone in Dublin on  (0)1 427 7900 or in Cork on (0)21 500 355.