Spring Loaded Seals

Constant-force garter-spring seal

A garter-spring-energised lip seal that maintains constant radial force as the lip wears, for reliable long-life shaft sealing.

Garter spring keeps radial force constant as the lip wears
Consistent sealing across a long service life
Accommodates minor shaft runout and eccentricity
NBR or FKM lip for fluid and temperature match
Steel or stainless case to suit the environment

Temperature: -40°C to +200°C (FKM lip)
Pressure: Up to 0.5 bar (standard lip)
pH range: 5 – 10

Spring-loaded radial oil seal highlighting the garter spring behind the lip — Oil SealsREF · spring-loaded-seal

Technical DatasheetSPEC

The numbers, on the record

Every figure below is the specification we hold ourselves to — material, service envelope, media compatibility and conformance. Download it as a standalone document for your dossier.

SealGuard

Technical Datasheet

Doc No.: DS-SPRING-LOADED-SEAL
Revision: Rev. A
Issue: 2026-Q3
Class: Oil Seals

Spring Loaded Seals

Constant-force garter-spring seal

01

Material & Construction

Elastomer lip (NBR / FKM / silicone) with stainless garter spring, steel case

02

Service Envelope

Temperature range	-40°C to +200°C (FKM lip)
Pressure rating	Up to 0.5 bar (standard lip)
pH range	5 – 10

03

Media Compatibility

Mineral & synthetic oilsGreaseWater (splash)

04

Dimensions & Sizing

Shaft Ø6–200 mm · metric & inch · DIN 3760 / ISO 6194

05

Standards & Conformance

DIN 3760
DIN 3761
ISO 6194

06

Certifications

ISO 9001

07

Additional Specifications

Lip type	Single, garter-spring energised
Surface speed	Up to 14 m/s

Spring	Stainless garter (constant force)
Runout tolerance	Improved vs spring-less lip

Specify & QuoteORDER

Build your line item

Choose the material grade and size that match your duty, set a quantity, and add a fully-specified line to your quote. No prices, no obligation — our engineers confirm specification and lead time on every enquiry.

01

Material grades

NBR lip / stainless garter spring
FKM lip / stainless garter spring
Silicone lip (wide temperature)
Stainless case (corrosive duty)
PTFE-faced lip (low friction)

02

Sizes & configurations

Shaft Ø6–200 mm
Single spring-loaded lip
Metal or rubber-covered OD
Stainless spring upgrade
Metric & inch dimensions
Custom sizes to drawing

In ServiceUSE

Where it holds the line

Lip force decays as a seal wears — unless a spring keeps it constant. The spring-loaded seal places a precision stainless garter spring behind the lip so that radial contact force, and therefore sealing performance, stays consistent across the seal's whole service life. That makes it the dependable choice for shafts that must run reliably for long intervals between maintenance, holding oil tight as the lip beds in and slowly wears. NBR and FKM lips cover the usual temperature and fluid range.

Typical applications

01Long-interval gearbox and motor shafts
02Pumps and fans
03Conveyor and drive rollers
04Wind-turbine and gear drives
05General rotating equipment

Industries served

The rest of oil seals

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Rotary Shaft Seals

Radial lip seal for shafts

The standard single-lip radial oil seal — steel-cased with a spring-energised elastomer lip that retains lubricant on rotating shafts.

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Hydraulic Seals

Pressure-rated rotary oil seal

A reinforced rotary oil seal built to hold a modest standing pressure on hydraulic pump and motor shafts where standard lip seals would fail.

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Double Lip Seals

Dust-excluding twin-lip seal

A twin-lip oil seal whose primary lip retains lubricant while an auxiliary dust lip excludes dirt, water and grit from the bearing.

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High Pressure Oil Seals

Reinforced seal for pressure shafts

A heavily reinforced rotary seal with a fabric- or back-up-supported lip that holds elevated casing pressure on demanding shaft applications.

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Let’s specify it

Specify this seal for your service.

Send us the media, temperature, pressure and motion for your duty and our engineers will confirm the right material grade, size and standard for your application.

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