SKF
SKF 9815 Shaft Seal HM14 Nitrile Rubber 1 x 1.25 x .125 in
Rotary shaft seal with 1 in inside diameter, 1.25 in outside diameter and .125 in width, nitrile rubber lip rated for 10 psi and 3,827 RPM in grease-lubricated agricultural machinery
- Seals rotating shafts with a single nitrile lip
- Handles grease, oil, fuel and hot water up to 10 psi
- Rated for 3,827 RPM maximum rotational speed
- HM14 design code fits 1 in ID by 1.25 in OD
- Compact .125 in width suits tight agricultural machinery housings
SKF 9815 Rotary Shaft Seal HM14
The SKF 9815 is a rotary shaft seal built to HM14 design code for grease-lubricated agricultural machinery. It fits a 1 in shaft inside a 1.25 in bore and uses a single nitrile rubber lip to retain lubricant and exclude contamination. The seal operates at pressures up to 10 psi and speeds up to 3,827 RPM.
Replaces worn HM14 nitrile seals on farm equipment
Install this seal when an existing HM14 unit leaks grease or lets dirt into the bearing housing. The jump is worth it when the old lip has hardened, the spring has lost tension or the case has corroded. It matches the original 1 in ID, 1.25 in OD and .125 in width so no machining changes are needed.
Suits maintenance on grease-lubricated farm drives
Mechanics servicing agricultural gearboxes, wheel hubs or PTO shafts that specify HM14 geometry will find a direct fit. It is not suited for high-pressure hydraulic systems, oil-lubricated transmissions or shafts larger than 1 in. Builders needing double-lip designs or fluorocarbon lips for extreme temperatures should look elsewhere.
Highlights
- Seals rotating shafts with a single nitrile lip
- Handles grease, oil, fuel and hot water up to 10 psi
- Rated for 3,827 RPM maximum rotational speed
- HM14 design code fits 1 in ID by 1.25 in OD
- Compact .125 in width suits tight agricultural machinery housings
Specifications
| Brand | SKF |
|---|
Questions about this item
Will the 1.25 in outside diameter and .125 in width fit my existing housing?
The seal has a 1.25 in outside diameter and a .125 in overall width, matching the HM14 design code for standard inch-dimension bores.
What is the correct way to press this nitrile rubber seal in without damaging the lip?
Use a flat driver that contacts only the metal case, press squarely until the case bottoms out, and never hammer directly on the rubber lip.
How often should I replace this seal on grease-lubricated agricultural equipment?
Inspect at each service interval; replace if the nitrile lip shows hardening, cracking, or leakage, typically every 1–2 seasons under normal field conditions.
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