DDS Rotary Shaft Seal: 1 Lip w/Spring, SC, Nitrile, 4.125 in ID, 5.125 in OD
The DDS Rotary Shaft Seal is a single-lip oil seal with a rubber-enclosed case for rough bores, featuring a spring-loaded design. This SC-type seal is made of nitrile and has an inside diameter of 4.125 inches, an…
SKU 3G-OTH-124935
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Product Description
The DDS Rotary Shaft Seal is a single-lip oil seal with a rubber-enclosed case for rough bores, featuring a spring-loaded design. This SC-type seal is made of nitrile and has an inside diameter of 4.125 inches, an outside diameter of 5.125 inches, and a width of 0.5 inches (MPN 104.77130.1712.7SC). It is an inch-system component from the DDS brand.
Frequently Asked Questions
What is a DDS rotary shaft seal used for?
A DDS rotary shaft seal prevents fluid leakage and contaminant ingress in rotating equipment such as pumps, gearboxes, and motors. Its single-lip, spring-loaded design with a rubber-enclosed case suits rough bores, making it ideal for industrial machinery requiring reliable sealing in inch-system applications.
What are the specifications of the DDS rotary shaft seal MPN 104.77130.1712.7SC?
This DDS rotary shaft seal has an inside diameter of 4.125 inches, an outside diameter of 5.125 inches, and a width of 0.5 inches. It is a single-lip SC-type seal with a spring, made of nitrile rubber, and features a rubber-enclosed case for rough bores. It is an inch-system component.
Where to buy DDS rotary shaft seals worldwide?
3G Electric supplies DDS rotary shaft seals worldwide, handling full logistics and customs clearance for international orders. As a global industrial solutions provider, we source genuine DDS components like the SC-type seal with nitrile lip and spring, ensuring you receive the correct part for your application.
How to install a DDS rotary shaft seal with a rubber-enclosed case?
To install a DDS rotary shaft seal, ensure the bore is clean and free of burrs. Use a seal driver or press to apply even pressure on the outer case, never the lip. Lubricate the seal lip and shaft before installation. Avoid damaging the rubber-enclosed case, which is designed for rough bores.
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Common applications for DDSDDS Products
3G Electric supplies DDS single-lip oil seals with rubber-enclosed cases for rough bores. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.













