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DDS Rotary Shaft Seal: 1 Lip w/Spring, SC, Nitrile, 4.375 in ID, 5.375 in OD - Single-Lip Oil Seals with Rubber-Enclosed Cases for Rough Bores
DDSSingle-Lip Oil Seals with Rubber-Enclosed Cases for Rough Bores

DDS Rotary Shaft Seal: 1 Lip w/Spring, SC, Nitrile, 4.375 in ID, 5.375 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 lip. This SC-design seal has a nitrile construction with an inside diameter of 4.375 inches…

SKU 3G-OTH-125181

Brand
DDS
Item
Rotary Shaft Seal: 1 Lip w/Spring, SC, Nitrile, 4.375 in ID, 5.375 in OD
Category
Single-Lip Oil Seals with Rubber-Enclosed Cases for Rough Bores
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Technical Specifications

DDS
Manufacturer Part Number
111.12136.5212.7SC
Type
SC, Nitrile
OD
5.375 in
Wd
0.5 in
ID
4.375 in
Seal Design
SC
System of Measurement
Inch
View Full Spec Sheet

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DDS Products
3G Electric (S) Pte. Ltd. — Singapore

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 lip. This SC-design seal has a nitrile construction with an inside diameter of 4.375 inches, an outside diameter of 5.375 inches, and a width of 0.5 inches (MPN 111.12136.5212.7SC). It is an inch-system component from DDS.

Frequently Asked Questions

What is the DDS Rotary Shaft Seal used for?

The DDS Rotary Shaft Seal is used to retain lubricants and exclude contaminants in rotating shaft applications, particularly in rough bore housings. Its single-lip, spring-loaded design suits industrial equipment such as pumps, gearboxes, and motors where reliable sealing against oil leakage is required.

What are the specifications of the DDS Rotary Shaft Seal?

This DDS seal has an inside diameter of 4.375 inches, an outside diameter of 5.375 inches, and a width of 0.5 inches. It features a nitrile single lip with a spring, a rubber-enclosed SC case for rough bores, and uses the inch system. The manufacturer part number is 111.12136.5212.7SC.

Where to buy the DDS Rotary Shaft Seal worldwide?

You can source the DDS Rotary Shaft Seal through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this DDS seal.

How to install the DDS Rotary Shaft Seal?

To install this DDS seal, ensure the housing bore is clean and free of burrs. Press the seal squarely into the bore using a suitable driver that contacts the outer case only. Lubricate the lip lightly before installation. Avoid damaging the sealing lip during assembly for optimal performance.

Used in

Common applications for DDS
Industrial pump shaft sealing — DDS dual-lip TC seals for water and wastewater pumps
Gearbox oil retention — DDS TA seals with reinforced metal cases in smooth bore housings
Compressor crankshaft sealing — DDS single-lip SA seals for moderate pressure applications
Food processing equipment — DDS fluoroelastomer TCN seals for chemical resistance
Conveyor drive motor sealing — DDS SC seals with rubber-enclosed cases for rough bores
Hydraulic power unit sealing — DDS dual-lip TCN seals for high-temperature oil systems

DDS 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.

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