Overview
The SKF 24898 is a small bore radial shaft seal designed and manufactured by Chicago Rawhide (a Chicago Rawhide/SKF brand). This CRWA1-type seal delivers reliable sealing performance in demanding industrial equipment where shaft protection and leak prevention are critical. The double-lip nitrile construction with wave lip technology reduces operational heat and friction, extending seal life and system efficiency.
Key Features
- Wave Lip Design: Sinusoidal motion generates up to 30% less heat and 20% less friction than conventional designs
- Double-Lip Configuration: Solid double lip with steel case and wave lip design for robust sealing
- Metal Case: Metal OD with Bore Tite coating for firm and accurate fit in housing bore
- Garter Spring Support: Carbon steel garter spring applies defined radial load to the sealing lip
- Nitrile Material: Chemical-resistant NBR (acrylonitrile-butadiene rubber) construction
- Easy Installation: Solid seal design for straightforward press-fit mounting
Technical Specifications
Type CRWA1 small bore radial shaft seal with 2-1/2 inch inside diameter, 3.256 inch outside diameter, and 3/8 inch width. Operating temperature range from -40 to 212°F. Maximum pressure tolerance is 10 psi. Shaft diameter is 2.5 inches, and maximum operating speed is 2,640 RPM with permissible circumferential speed of 1,734 feet per minute.
Typical Applications
The SKF 24898 is suitable for a wide range of rotating shaft applications requiring dependable radial sealing:
- Industrial pumps and motors
- Agricultural equipment and gearboxes
- Automotive and heavy equipment applications
- Manufacturing machinery and spindles
- Compressors and hydraulic systems
Compatibility & Replacements
Compatible With
- Small bore shaft diameters of 2.5 inches (63.5 mm)
- Housing bores sized for 3.25–3.26 inch outer diameter
- Standard industrial motors and gearboxes
- Equipment designed for metric or inch-dimension seals
- Oil and grease lubrication systems
Replaces / Drop-In Replacement For
The SKF 24898 is a direct replacement for OEM applications requiring Chicago Rawhide CRWA1 seals. Verify compatibility with your equipment documentation before ordering. Compatible wear sleeves and support rings are available separately (SKF part numbers 99248, 99250, 99253, 99840).
Works With
- Oil-based and synthetic lubricants (verify fluid compatibility with nitrile rubber)
- Shaft sleeves and repair kits (SKF 99-series compatible wear sleeves)
- V-ring seals for enhanced protection (SKF 400-series V-ring part numbers)
- Standard industrial bearing and seal maintenance tools
