SKF
Power Transmission Seals Overview
This overview presents SKF’s power transmission seal portfolio, which is the frontline defence for bearing and gearbox lubricant systems against environmental contamination. It introduces radial shaft seals as the core product, with variations for general industry and heavy-duty applications. Cassette seals are highlighted for severe contamination, while V-ring and axial clamp seals provide simple, effective axial sealing. Wear sleeves and sealing washers complete the system approach. The overview outlines how each product family fits into typical machine arrangements, helping specifiers quickly identify the appropriate seal type for their rotating equipment. SKF’s extensive size range and material options ensure a seal for every common industrial shaft application, from small electric motors to massive steel mill rollers.
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Seal Type Roadmap
Radial shaft, cassette, V‑ring, axial clamp — all from one overview.
Contamination Severity Matching
Seal types arranged by environmental challenge.
Speed and Temperature Limits
Quick‑reference limits for NBR, FKM, PTFE lips.
Housing and Shaft Interface Standards
ISO 6194 and DIN 3760 dimensions covered.
Accessory Integration
Wear sleeves, sealing washers shown in system context.
Global Availability Assurance
Most types stocked for immediate shipment.
The First Question: What Is the Seal Trying to Keep In, and What Is It Keeping Out?
The overview teaches that sealing is a balance. A lip seal retains oil but excludes dust. A V‑ring excludes water but may not hold pressure. By defining the primary contaminant and the lubricant type, the selector can immediately narrow the seal type.
How to Use the SKF Seal Select Online Tool
The overview links directly to the digital Seal Select tool. Enter shaft diameter, speed, and fluid, and it presents a shortlist of suitable seal designs and materials. This shortens the specification time from hours to minutes, especially for general industrial applications.