Product Overview

The Large Gear Shaft Seal is a critical wearing spare part for the gearbox of screw air compressors. It seals the rotating large gear shaft, retains lubricating oil inside the gearbox, and blocks dust, moisture and contaminants from entering the gear system. It effectively prevents oil leakage on the gear shaft, protects gears and bearings, and cuts down costly machine downtime. It serves as high-quality aftermarket replacement parts for many famous air compressor brands and fits multiple screw compressor gearboxes.

Key Features

✅ Premium Material Options: NBR, FKM or PTFE available. Excellent oil resistance, high-temperature resistance, anti-aging and wear resistance, stable under continuous high-temperature compressor operation. ✅ Precision Double-Lip Sealing Structure: Main lip keeps oil inside; secondary lip works as dust barrier. Garter spring maintains consistent radial pressure on sealing lip. Reliable sealing even under high speed, shaft eccentricity and machine vibration. ✅ High Precision Dimension: Manufactured according to original OEM dimensions. Perfect fit, no extra machining required. Easy installation and replacement, saving maintenance time. ✅ Low-friction Design: Minimize shaft abrasion and heat build-up. Extend service life of seal, gear and bearing, reduce oil consumption. ✅ Strict Pre-shipment Inspection: Every unit is tested for sealing performance, pressure resistance and dimension accuracy to avoid leakage and premature failure.

Specifications

• Product Name: Large Gear Shaft Oil Seal
• Application: Screw Air Compressor Gearbox
• Material: NBR / FKM / PTFE
• Structure: Single-lip / Double-lip with metal skeleton
• Working Condition: Continuous high-speed rotation, resistant to temperature change and vibration
• Function: Prevent lubricant leakage, keep dust & moisture out of gearbox

Why Choose Us

We are a one-stop supplier specializing in air compressor filter elements and spare parts with over 10 years of experience, factory direct sales. We supply full range of aftermarket compressor parts including filter elements, seals, valves and maintenance kits, compatible with Atlas Copco, Ingersoll Rand, Sullair and other mainstream brands. No middleman markup. We accept small trial orders and bulk purchases. All our products come with 1-year warranty. 100% inspection before shipment with stable quality. OEM replacement customization available. Fast response for overseas inquiries and technical support.

Application

Industrial screw air compressors, air end gearboxes, stationary compressors, maintenance & replacement for factory, mining and construction air compressors.

Notes

Please send us your compressor model, shaft size or OEM part number for accurate matching. Custom non-standard sizes are acceptable.