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85 × 110 × 12 oil seal

Oil seals › 85 × 110 × 12

A 85 × 110 × 12 oil seal fits a 85 mm shaft in a 110 mm housing bore and is 12 mm wide. Ask for 85×110×12 TC: a rotary shaft seal with two lips and a garter spring.

HOUSINGØ110 H8OILSIDESHAFTØ85 h11AIR1212.5
85 × 110 × 12 TC · rubber outside, metal case, spring-loaded main lip facing the oil, dust lip on the air side.
Shaft Ø85 mm
Housing bore110 mm
Width12 mm
Housing bore, H8110.000 to 110.054 mm
Shaft, h1184.780 to 85.000 mm, ground Ra 0.2–0.8 µm
Shaft lead-in15–30° down to Ø80.5 mm
Housingchamfer 15–30°, bore at least 12.3 mm deep

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

Open 85 × 110 × 12 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.