Overview
The Martin CSW7 waste pack seal is a precision-engineered sealing component designed for screw conveyor and mechanical power transmission applications. Featuring waste packing combined with a lip seal, this unit accommodates 3 7/16″ shaft diameters and is manufactured from cast iron for durability in industrial environments. The CSW7 is ideal for preventing bulk material leaks while maintaining bearing integrity.
Key Features
- Waste packing combined with lip seal design
- Cast iron construction for long service life
- Compatible with flanged ball, roller, and standard 4-bolt bearings
- Top-mounted repacking opening eliminates seal removal during maintenance
- Reduces product loss, contamination, and bearing wear
- Field-proven design for screw conveyor trough ends
Technical Specifications
- Shaft Diameter: 3 7/16″
- Seal Width: 9-1/4″
- Seal Height: 9-1/4″
- Seal Thickness: 2-1/4″
- Material: Cast Iron
- Mounting Style: 4-Bolt Flange (Standard)
- Bolt Hole Center (Ball Bearing): 6-3/4″
- Bolt Hole Center (Roller Bearing): 7″
Typical Applications
- Screw conveyor systems and trough assemblies
- Bulk material handling equipment
- Industrial bearing protection in dusty or wet environments
- Conveyor drive units with flanged bearing mounts
- Replacement seal maintenance programs
Compatibility & Replacements
Compatible With
- Flanged ball bearings with 4-bolt mounting
- Flanged roller bearings with 4-bolt mounting
- Standard trough-end bearing housings
- Pedestal-style trough end assemblies
- Screw conveyor drive systems
Replaces / Drop-In Replacement For
- Conveyors Inc. CSW3716-L
- KWS WPS3716WL
- Earlier generation Martin waste pack seals with 3 7/16″ shaft specification
Works With
- Martin sprocket and conveyor drive systems
- Standard NEMA-compatible 4-bolt flanged bearing housings
- Screw conveyor maintenance programs and bearing lubrication systems
