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  • Heavy-Duty Radial Shaft Seals for Gearbox and Reducer Repair
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  • Heavy-Duty Radial Shaft Seals for Gearbox and Reducer Repair

    Heavy-duty shaft seals for gearbox and reducer repair—built to handle dusty environments, vibration, and long runtimes with optional dust-lip protection.
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Description
Heavy-duty shaft seals for gearbox and reducer repair—built to handle dusty environments, vibration, and long runtimes with optional dust-lip protection.

Heavy-Duty Radial Shaft Seals for Gearbox and Reducer Repair

Repair-grade sealing for harsh duty

When gearboxes and reducers run in dust, vibration, and continuous duty, a heavy-duty radial shaft seal helps stabilize lubrication and reduce leak recurrence after repair.

Heavy-duty highlights

  • Dust-lip option for abrasive contamination

  • Wear-resistant compounds for extended service life

  • Spring-energized lip to maintain sealing force

  • Custom sizes for rebuilds and non-standard housings

Technical Attributes (40+)

AttributeOptions / Notes
Product typeHeavy-duty radial shaft seal
Primary scenarioGearbox & reducer repair
Sealing goalsLeak control + contamination defense
Duty environmentDust, vibration, long runtime
Lip optionsSingle lip / Double lip (dust lip)
Dust protectionAuxiliary dust lip (recommended for harsh sites)
Spring energizerGarter spring; stainless available
OD constructionMetal case / Rubber-coated OD / Elastomer OD
Case materialSteel standard; stainless optional
Lip materialsNBR / HNBR / FKM / PTFE
Wear-resistant optionEnhanced elastomer compounds (on request)
Heat resistance optionFKM/PTFE options (on request)
Low-temp optionSpecial compounds available
LubricantsGear oils, greases (verify compatibility)
Temperature classMaterial dependent
Speed classProfile/material dependent
Pressure classLow pressure typical; special designs optional
FitPress-fit into housing bore
Shaft size (d)Custom
Bore size (D)Custom
Width (b)Custom
RotationBi-directional standard
Helix/pumping optionOn request (application dependent)
RunoutProfile dependent; specify for selection
MisalignmentProfile dependent; specify for selection
Shaft finishFine finish recommended
Shaft hardnessRecommended higher hardness for abrasive duty
Housing finishSuitable for stable press-fit
InstallationDriver tool recommended
ChamferRecommended to prevent lip damage
Assembly sleeveRecommended for splines/keyways
Drag torqueDepends on preload & lubrication film
Heat generationDepends on speed and selection
Corrosion protectionStainless/treated case optional
Oil cleanliness impactHelps reduce dirt ingress with dust lip
InspectionDimensional + visual checks
TraceabilityOptional
DocumentationCOC/inspection report optional
CustomizationSize, lip, OD style, compound, spring
Typical equipmentConveyors, crushers, mixers, heavy gear units
Service targetReduce repeat leak after rebuild
Ordering datad × D × b + rpm + temp + lubricant + dust level

Best for

Repair shops and maintenance teams needing robust sealing for harsh operating environments.

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