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45 × 65 × 8 oil seal

Oil seals › 45 × 65 × 8

A 45 × 65 × 8 oil seal fits a 45 mm shaft in a 65 mm housing bore and is 8 mm wide. Ask for 45×65×8 TC: a rotary shaft seal with two lips and a garter spring.

HOUSINGØ65 H8OILSIDESHAFTØ45 h11AIR810
45 × 65 × 8 TC · rubber outside, metal case, spring-loaded main lip facing the oil, dust lip on the air side.
Shaft Ø45 mm
Housing bore65 mm
Width8 mm
Housing bore, H865.000 to 65.046 mm
Shaft, h1144.840 to 45.000 mm, ground Ra 0.2–0.8 µm
Shaft lead-in15–30° down to Ø41.5 mm
Housingchamfer 15–30°, bore at least 8.3 mm deep

A common metric size (DIN 3760 / ISO 6194). Tolerances from ISO 286; fitting sizes as Benchsmith's Find → Seal gives them.

Open 45 × 65 × 8 in BenchsmithAdd to order list

Bench note · why the spring faces the oil

The lip with the garter spring faces the oil or grease you keep in. The second, dust lip faces out. Fitted backwards it leaks from the first turn.

Bench note · why a lead-in on the shaft

Push it on over a chamfer, a sleeve or tape over keyways and threads: a sharp edge rolls or cuts the lip. Press the seal in square with a driver on the outer case, not on the lip.

Same shaft, other housings

Same housing bore, other shafts

Next shaft size

Old seal with no size on it? Measure the shaft, the housing bore and the width, and type them into Benchsmith → Find → Seal.