Gamma seal GB

rotaryelastomerNBR

Description
The Gamma Ring GB is an axial, single-acting sealing element for non-pressurized shaft and bearing sealing applications to protect against the intrusion of contamination and water spray from outside. The sealing action is performed on a vertically arranged front surface (axial sealing). The metallic fit on the inner diameter ensures a secure grip on the shaft. The extended metal ring design provides good protection against coarse contamination.

Design and materials
Metal casing: standard unalloyed carbon steel or stainless steel variants. Flexible seal lips: standard elastomers NBR and FKM. Further materials available on request.

Fields of application

• Static
• Dynamic
• Single acting
• Double acting (indicated but greyed on site)
• Linear
• Rotating
• Oscillating

Main use
Anti-contaminant shaft outlet seals with mechanical reinforcement.

Materials
Elastomers and metal.

Technical values

• Materials (variants available): NBR, FKM
• Temperature (NBR): -30°C to +100°C (material dependent)
• Temperature (FKM): -20°C to +200°C (material dependent)
• Speed: up to 8 m/s (material and application dependent)
• Pressure: not applicable / no rated pressure for this axial, non-pressurized design

Features / Technical specifications

• Type: Axial sealing element (seals on front surface)
• Acting: Single-acting design
• Application: Protection against contamination and water spray on non-pressurized shafts and bearings
• Metal casing options: Carbon steel (standard), stainless steel (optional)
• Seal lip materials: NBR (standard), FKM (standard), other elastomers on request
• Inner fit: Metallic fit on inner diameter for secure shaft grip
• Extended metal ring: Improves protection against coarse contamination
• Temperature ranges: Material dependent (see NBR / FKM values above)
• Maximum surface speed: Up to 8 m/s (dependent on material and media)
• Pressure: Not designed for pressurized sealing (no pressure rating)