DEDE Seal Co., Ltd. is one of the most reliable manufacturers and suppliers of shaft oil seal in China. If you're going to buy bulk shaft oil seal made in China, welcome to get pricelist from our factory. All customized seals are with high quality and competitive price.
Shaft Oil Seal is an indispensable sealing component for all rotary machinery. It works to keep lubricating oil and grease sealed inside the device, while stopping dust, mud, water and other impurities from invading internal precision parts like bearings and gears. Standardized installation and matched working conditions can maximize sealing effect and prolong the whole machine's service life.
Product Structure
THE product consists of three core components: metal skeleton, rubber body and garter spring. The integrated metal skeleton provides full structural support and prevents deformation during installation and long-term operation. The elastic rubber lip forms the main dynamic sealing surface that contacts the rotating shaft. The circular garter spring supplies even radial preload around the whole circle, keeping the lip closely attached to the shaft surface at all times.
Installation & Maintenance Tips
Clean the shaft surface thoroughly before installation, remove all scratches, burrs and metal debris.
Coat a thin layer of lubricant on the sealing lip during fitting to lower initial rotational friction.
Carry out periodic regular inspection for shafts and oil seals; early detection of abrasion avoids sudden leakage and unplanned shutdowns.
Material Options
DEDE supplies two mainstream rubber materials for shaft oil seals to fit diverse working conditions:
NBR Nitrile Rubber
Ideal for normal temperature, mineral oil and general industrial equipment
FKM Fluoroelastomer
For high-temperature scenes and working media with chemical corrosion Select materials based on actual operating temperature, lubricant compatibility and equipment service demands.
Performance Benefits
The sealing lip keeps constant contact pressure during shaft rotation to sustain long-term sealing efficiency
Matched NBR/FKM rubber materials ensure stable performance across diverse temperature and lubricant environments
Reduces unexpected equipment downtime and lowers regular maintenance costs
Typical Applications
Our shaft oil seals are widely applicable to all rotary transmission systems needing reliable sealing:
● Industrial gearboxes & reducers
● Electric motors & servo motors
● Hydraulic pumps, water pumps and oil pumps
● Agricultural machinery such as tractors and harvesters
● Construction machinery including excavators, loaders and rollers
● All other heavy-duty rotating equipment
FAQ
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