SKF
SKF 29224 Shaft Seal 2.938 x 3.751 x .375 in
Rotary shaft seal with nitrile lips, 2.938 in ID, 3.751 in OD, .375 in width, rated 10 psi and 2,400 RPM for oils and greases
- ColorTransparent
- Width3/8"
- Precision sealing with 2.938 in inside diameter
- Durable nitrile rubber lips resist oil and fuel
- Dual-lip design with carbon-steel spring maintains contact
- Rated for 2,400 RPM and 9.46 m/s surface speed
- Compact 0.375 in width fits tight engine spaces
SKF 29224 Rotary Shaft Seal
The SKF 29224 is a rotary shaft seal designed for industrial and automotive sealing applications. It suits maintenance technicians and engineers who need reliable fluid retention on rotating equipment.
Sustained load behaviour with CRWA1 design
The CRWA1 design uses two nitrile rubber lips and a carbon steel spring to maintain contact pressure during continuous rotation. It handles sustained speeds up to 2,400 RPM and surface speeds of 9.46 mps while resisting wear from animal oils, vegetable oils, diesel, gasoline, greases, hot water, light heating oil and mineral oils.
Practical limits of the inch specification
The seal operates within a maximum pressure of 10 psi and fits shafts of 2.938 in inside diameter with a 3.751 in outside diameter and .375 in width. The acrylic-coated case and inch-based dimensions determine housing compatibility for the specified fluid types.
Highlights
- Precision sealing with 2.938 in inside diameter
- Durable nitrile rubber lips resist oil and fuel
- Dual-lip design with carbon-steel spring maintains contact
- Rated for 2,400 RPM and 9.46 m/s surface speed
- Compact 0.375 in width fits tight engine spaces
Specifications
| Brand | SKF |
|---|---|
| Color | Transparent |
| Width | 3/8" |
Questions about this item
How much heat or power does the SKF 29224 seal generate when running all day?
The seal has no moving parts of its own and generates no measurable heat or power draw; temperature rise comes only from the shaft it seals.
What shaft size and housing bore must I already have for the 2.938 in x 3.751 in seal to fit?
You need a shaft of 2.938 in diameter and a housing bore of 3.751 in diameter; the seal presses into the bore and rides on the shaft.
Will the NBR lip material and 10 psi pressure limit work with the mineral oil and 2,400 RPM in my older gearbox?
Yes, NBR is compatible with mineral oils and the 10 psi limit suits typical splash-lubricated gearboxes running up to 2,400 RPM.
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