57.15x76.27x9.3/12.7 mm NBR Radial Shaft Oil Seal

This 57.15x76.27x9.3/12.7 mm NBR radial shaft oil seal is built with metal reinforcement shell and garter spring, designed as high‑performance sealing component for automotive applications. It seals rotating shafts effectively to stop lubricant oil leakage, meanwhile blocks dust, mud and splash moisture entering mechanical assemblies. It protects bearings and related transmission parts and lowers premature failure risk under medium‑pressure working conditions. High‑quality brand‑new aftermarket replacement part, strictly manufactured according to dimensional tolerance requirements. Suitable for auto repair workshops, auto‑parts wholesalers and overseas bulk procurement. Core functions Oil retention ：Prevent lubricant leakage and maintain stable internal lubrication environment Dust & contaminant exclusion: Keep dirt, mud and splash water out of equipment housing Reinforced metal shell: Maintain geometry and resist deformation during installation Garter spring pre‑load: Sustained pressing force against shaft surface for stable sealing under pressure

Material ：NBR nitrile rubber, carbon steel metal shell, stainless steel garter spring Structure ：Radial double‑lip shaft oil seal Key properties ：Oil‑resistant, wear‑resistant, high‑pressure resistant, anti‑aging Working temperature:‑20℃ +120℃ Manufacturing features High‑temperature vulcanization bonding: Rubber tightly bonded with metal shell to avoid delamination. Precisely machined sealing lip to reduce shaft friction and extend service life. Anti‑rust treatment for metal shell for stable storage performance in humid environment. NBR compound formula compatible with automotive mineral‑based lubricants, resist swelling and hardening. NBR material advantages Good compatibility with engine oil, gear oil and grease for general automotive conditions. Outstanding wear resistance for continuous rotating‑shaft operation under medium pressure. Cost‑effective for large‑volume aftermarket repair orders. FKM fluoroelastomer upgrade available for high‑temperature and harsh chemical working scenarios.

Product Type ：Aftermarket radial double‑lip shaft oil seal for automotive use Key dimension ：ID 57.15mm × OD 76.27mm × Width 9.3/12.7mm Compatible media ：Engine oil, gear oil, grease. Working conditions: Automotive medium‑pressure service, resist dust, mud and splash water. Not suitable for ：Strong corrosive solvents, extreme ultra‑high‑temperature special‑purpose equipment. Buyer reminder ：This is aftermarket replacement part. Please verify dimension tolerance and working condition before placing order. Double‑check actual shaft diameter and housing bore dimension to avoid sealing failure caused by mismatching.

Selection Tips 1. Confirm key dimension: ID 57.15mm, OD 76.27mm, width 9.3/12.7mm, verify shaft and housing bore tolerance. 2. Choose NBR for standard oil‑medium‑pressure conditions; select FKM upgraded version for high‑temperature working environment. 3. Inspect shaft and housing bore before installation. Repair grooves, rust and burrs; defective mating surface will cause new seal leaking quickly. Installation Steps Preparation Thoroughly clean housing bore and shaft surface, remove old seal residue, oil dirt, metal chips and burrs. Damaged mating surface directly leads to premature oil‑seal leakage. Pre‑lubrication Coat sealing lip and shaft contact surface with matching engine oil or grease. Dry installation is strictly forbidden; dry friction will rapidly burn sealing lip. Orientation Confirmation Sealing lip faces toward oil chamber side; dust lip faces outward to atmosphere. Wrong installation direction will cause direct oil leakage and dust‑proof function failure. Vertical Press‑fit Use suitable sleeve tool to press oil seal evenly and vertically. Never strike rubber portion directly to prevent shell deformation and lip damage. Seating Inspection Ensure oil seal sits fully flush inside housing bore without tilt or warping. Visual Check Inspect sealing lip for tears and shell deformation. Tiny invisible damage will trigger oil seepage after commissioning. Rotation Test Manually rotate shaft to confirm smooth movement without abnormal binding resistance. Re‑assemble if abnormal resistance occurs.

Inner package ：Individual anti‑dust poly bag for each unit to protect sealing lip from scratch. Outer package ：Reinforced heavy‑duty export carton. Packing quantity ：50‑300 pcs per carton, adjustable per order requirement. MOQ ：No MOQ for stock items, sample order acceptable; bulk stock order MOQ:300 pcs. Lead‑time ：Stock items ship within 3‑5 working days; custom color, logo and export‑packaging orders 30‑45 working days. Custom options ：Custom logo printing, special color and export‑oriented packaging available, custom order MOQ≥1000 pcs. Shipping protection: Moisture‑proof, dust‑proof and compression‑resistant packing to prevent seal deformation during transit.