GMN Bearings USA German Manufacturer of High Precision Ball Bearings, Clutches and Seals
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Gap seals

GMN Gap Seals are made from high quality plastic material whose major benefit is the extreme resistance against lots of chemicals, bacteria and fungi. It is resistant against splashing water as well.

The second important benefit of the Gap Seal is the conical envelop of the labyrinth gap which leads eventually penetrating liquids back due to centrifugal force.

Gap seals

Type S

Diameter range (shaft) d = 10 mm to 160 mm
Width - depending on size 10 / 12 / 15 mm
For heavy contamination and lightly splashing liquids
Suitable for rotating shaft and/or housings
Temperature range -40° C to 60° C/ -40° F to 140° F

For certain applications the sealing efficiency of a "S" Type Gap Seal may be increased by packing it with grease. The basic grease packing has to be done at GMN with a grease as per customer's requirements. Please order "S-pregreased" and add grease type if your application requires a special grease (e.g. FDA approved)

Gap seals Type S

Type Sa

This version with a drain groove at the outer ring may be used in case of heavy splashing liquids.
Only to be used with rotating shafts
More information please see Type "S", but no pregreasing possible.
Gap seals Type SA

Type Si

This version with a drain groove at the inner ring may be used in case of heavy splashing liquids.
Only to be used with rotating housings
More information please see Type "S", but no pregreasing possible.
Gap seals Type Si

Special - customer oriented seals

On request we will be pleased to suggest and produce special seals for special applications, e.g. special dimensions. For slightly higher temperatures than the limit of 60° C up to 80°/ 90° C (170° F/ 200° F) we offer a special design with "O"-rings at the inner and/or outer ring to increase the reliability of the press fit. Please contact our technical staff at no obligation.
Gap seals Type Special

 12633 Shiloh Church Rd - Houston, TX 77066 USA Phone: (800) 323-5725, (281) 858-7000 Fax: (281) 858-7277
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