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DDS Rotary Shaft Seal: 1 Lip w/Spring, SC, Nitrile, 6.125 in ID, 7.125 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, 6.125 in ID, 7.125 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 lip. This SC-design seal has a 6.125-inch inner diameter, a 7.125-inch outer diameter, and a…

SKU 3G-OTH-123863

Also listed as: 1555718098127SC · 155 57180 9812 7SC · 155-57180-9812-7SC

Brand
DDS
Item
Rotary Shaft Seal: 1 Lip w/Spring, SC, Nitrile, 6.125 in ID, 7.125 in OD
Category
Single-Lip Oil Seals with Rubber-Enclosed Cases for Rough Bores
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

DDS
Manufacturer Part Number
155.57180.9812.7SC
Type
SC, Nitrile
OD
7.125 in
Wd
0.5 in
ID
6.125 in
Seal Design
SC
System of Measurement
Inch

Technical Documents

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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 6.125-inch inner diameter, a 7.125-inch outer diameter, and a 0.5-inch width, made of nitrile material. It is an inch-system component identified by manufacturer part number 155.57180.9812.7SC.

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 design with spring maintains constant lip pressure on the shaft, making it suitable for oil retention in industrial machinery across multiple sectors.

What are the specifications of the DDS rotary shaft seal 155.57180.9812.7SC?

This DDS rotary shaft seal has a 6.125-inch inner diameter, 7.125-inch outer diameter, and 0.5-inch width. It features a single lip with spring, SC seal design, and a nitrile rubber-enclosed case for rough bores. It is an inch-system component with manufacturer part number 155.57180.9812.7SC.

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 155.57180.9812.7SC and deliver them to your facility, ensuring compliance with local import requirements.

How to install a DDS rotary shaft seal?

To install a DDS rotary shaft seal, ensure the housing bore is clean and free of burrs. Lubricate the seal lip and shaft with compatible oil. Press the seal evenly into the bore using a driver tool that contacts the outer case only, avoiding damage to the sealing lip or spring.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
This single-lip oil seal features a rubber-enclosed case designed for rough bores. It has a 6.188-inch inner diameter, 7.25-inch outer diameter, and 0.5-inch width. The SC design includes a spring-loaded lip, and the seal is made of nitrile material. Typical applications include pumps, gearboxes, and motors where retention of lubricants and exclusion of contaminants is required
DDS
This single-lip oil seal features a rubber-enclosed case designed for rough bores. It has a 6.188-inch inner diameter, 7.25-inch outer diameter, and 0.5-inch width. The SC design includes a spring-loaded lip, and the seal is made of nitrile material. Typical applications include pumps, gearboxes, and motors where retention of lubricants and exclusion of contaminants is required
DDS Rotary Shaft Seal: 1 Lip w/Spring, SC, Nitrile, 6.75 in ID, 7.75 in OD, 0.5 in Wd (MPN 171.45196.8512.7SC)
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DDS Rotary Shaft Seal: 1 Lip w/Spring, SC, Nitrile, 6.75 in ID, 7.75 in OD, 0.5 in Wd (MPN 171.45196.8512.7SC)
This single-lip oil seal features a rubber-enclosed case for use in rough bores. The SC design includes a spring-loaded nitrile lip. It retains lubricants and excludes contaminants in rotating shaft applications such as pumps, gearboxes, and motors
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This single-lip oil seal features a rubber-enclosed case for use in rough bores. The SC design includes a spring-loaded nitrile lip. It retains lubricants and excludes contaminants in rotating shaft applications such as pumps, gearboxes, and motors
DDS Rotary Shaft Seal: 1 Lip w/Spring, SC, Nitrile, 158 mm ID, 180 mm OD, 15 mm Wd (MPN 15818015SC)
DDS
DDS Rotary Shaft Seal: 1 Lip w/Spring, SC, Nitrile, 158 mm ID, 180 mm OD, 15 mm Wd (MPN 15818015SC)
DDS Rotary Shaft Seal: 1 Lip w/Spring, SC, Nitrile, 5.938 in ID, 7 in OD, 0.5 in Wd (MPN 150.81177.812.7SC)
DDS
DDS Rotary Shaft Seal: 1 Lip w/Spring, SC, Nitrile, 5.938 in ID, 7 in OD, 0.5 in Wd (MPN 150.81177.812.7SC)
DDS Rotary Shaft Seal: 1 Lip w/Spring, SC, Nitrile, 162 mm ID, 190 mm OD, 12 mm Wd (MPN 16219012SC)
DDS
DDS Rotary Shaft Seal: 1 Lip w/Spring, SC, Nitrile, 162 mm ID, 190 mm OD, 12 mm Wd (MPN 16219012SC)

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