Hydraulic seals - Article 2

In yesterday in my article 1 on #hydraulicseals how to measure old seals question been asked when normally customers bring the old seals to the counter show room been asked and the answer given below.

Measuring the seal's Outside diameter at four equally spaced areas around the seal. Then to take the average of these measurements to determine the seal's outside diameter.

Repeat the procedure with the seal's inside diameter and width ( height ) to determine the seal replacement size.

Seal dimensions equivalent to iron dimensions are given as per below :

SNAP IN WIPER SEAL

Iron dimension - bore diameter.

Equivalent seal dimension - base thickness.

For head seal/piston seal /Piston wear ring - Iron dimension

HEAD SEAL/PISTON SEAL/PISTON WEAR RING

Iron dimension - Bore diameter/ Groove width/Groove diameter.

Equivalent seal dimension - OD/ width / Inside diameter.

WIPER SEAL/U SEAL/CUP SEAL /BUFFER SEAL/HEAD WEAR RING

Iron dimension - Bore diameter/ Groove width/ Groove diameter.

Equivalent seal dimension -Outside diameter/ Width/ Inside diameter.

R.Anandh