Oil seal for Johnson Evinrude
High-quality marine engine spare parts.
Marine-grade water pump seal.
This seal is located on top of the water pump housing and the driveshaft passes through.
Reference to Johnson / Evinrude : 318972 0318972
Sierra: 18-2025
Applications:
9.9HP through 15HP
Most of you will already understand these basics of how an oil seal is designed but we wanted to put this tip out for people new to the field.
In an oil seal environment, there is a shaft that is rotating inside a housing or bore. Because of friction, there must be some clearance between the shaft and the bore. The function of the oil seal is to stop whatever fluid is inside from leaking out the clearance between the shaft and housing. The seal may also be used to prevent outside materials, such as dirt, from moving in through the clearance.
“Dynamic sealing” is the relationship between the rotating shaft and the seal and is handled by the sealing element. A garter spring may be used in the oil seal to increase the radial interference between the seal lip and contact point on the shaft. In order to achieve this interference, the oil seal’s ID must be slightly smaller than the diameter of the shaft.
“Static sealing” is the relationship between the housing and the seal. In order to achieve this interference, the oil seal’s OD must be slightly larger than the diameter of the housing or bore.
An oil seal normally consists of three basic components: the sealing element, the metal case and the spring. The purpose of the sealing element is to stop the fluid from leaking between the shaft and housing. The metal case will give rigidity and strength to the seal while it is being held in the bore or recessed groove. The spring will help make the sealing element more effective. All materials must be selected depending on the environment in which the oil seal will function.
Anonymous –
adidas Men's Courtflash Speed Tennis Shoes adidas
Minirobe volantée fleurie en chiffon avec encolure carrée Sirens
L Teanina 200 mg 60 Tabletas | Lamberts Lamberts
EBC Racing 2023+ Nissan 400Z Red Apollo-6 Calipers 355mm Rotors Front Big Brake Kit EBC
Robe Cosabella
GATES K061031 MICRO-V BELT BRISTOL AUTOMOTIVE PARTS
2" Circle – "MAR" (White) Months of the Year Labels 500/Roll Packaging Supplies
2-Pack KitchenAid KTRA19EMWH00 Refrigerator Water Filter Replacement Denali Pure
ENSEMBLE CKX 1 PIÈCE FEMME, YUKON TURQUOISE CKX
Jewellery Stand DKD Home Decor Mirror Velvet MDF Traditional (35,7 x 35,8 x 154 cm) DKD Home Decor
Samsung Main Board BN94-17362L for QN43QN90B / QN43QN90BAFXZA Pauls TV
Sahmurad – (5'11" x 10'6" ) Vintage Turkish Kilim Rugtolia
DUPLICOLOR HWP102 WHEEL COATING 12 OZ – GRAPHITE (IN-STORE PICK UP ONLY) DUPLICOLOR
Air Factory Melon Lush 100ml Vape Juice Air Factory
Chrome Roof Molding Trim Kit for Nissan X-Trail 2015, 2016, 2017, 2018, 2019 TrueLine Automotive
Replacement for Satco S7205 15PAR30/E26/4100K/120V 15W PAR30 Screw-In 4100K CFL – NOW LED Satco
Pittsburgh Steelers: Mailbox Logo – Officially Licensed NFL Outdoor Graphic Fathead LLC
14k Rose Gold Polished Glitter Infused Hoop Earrings Qgold
Christmas: Red Paper Dry Erase – Removable Adhesive Decal Fathead LLC
Kindred KCUD36-9-10BG 2 Bowl Undermount Sink with Bottom Grids – Stainless Steel Kindred
Energising Lotion Shu Uemura Izumi Tonic 150 ml Shu Uemura
ARMOR WARS #5 SWA MARVEL COMICS
Battery for Logitech VR0004 533-000104, F12431581 3.7V Li-ion 2600mAh / 9.62Wh Cameron Sino
ProMaster Professional Umbrella – Soft Light – 60" ProMaster
Chasseur Round French Oven Bordeaux – 24cm/ 4L CHASSEUR
GATES 20793 CURVED HOSE BRISTOL AUTOMOTIVE PARTS
Winterjacke Smooth Lion Blue Gosoaky