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DDS Rotary Shaft Seal: 1 Lip w/Spring, SF, Nitrile, 440 mm ID, 480 mm 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, SF, Nitrile, 440 mm ID, 480 mm OD

The DDS Rotary Shaft Seal is a single-lip oil seal with a rubber-enclosed case designed for rough bores. This metric SF-design seal features a nitrile construction with a 440 mm inner diameter, 480 mm outer diameter…

SKU 3G-OTH-124147

Also listed as: 44048020 SF · 44048020-SF

Brand
DDS
Item
Rotary Shaft Seal: 1 Lip w/Spring, SF, Nitrile, 440 mm ID, 480 mm 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
44048020SF
Type
SF, Nitrile
OD
480 mm
Wd
20 mm
ID
440 mm
Seal Design
SF
System of Measurement
Metric

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 designed for rough bores. This metric SF-design seal features a nitrile construction with a 440 mm inner diameter, 480 mm outer diameter, and 20 mm width (MPN 44048020SF). It includes an integral spring for lip loading.

Frequently Asked Questions

What is a DDS rotary shaft seal used for?

A DDS rotary shaft seal prevents lubricant leakage and contaminant ingress in rotating equipment such as pumps, gearboxes, and motors. Its single-lip design with a spring maintains consistent lip pressure on the shaft, making it suitable for industrial applications requiring reliable sealing in rough bore housings.

What are the specifications of the DDS 44048020SF rotary shaft seal?

The DDS 44048020SF is a metric SF-design single-lip oil seal with a nitrile rubber-enclosed case. It has a 440 mm inner diameter, 480 mm outer diameter, and 20 mm width. The integral spring provides lip loading for effective sealing in rough bore applications.

Where to buy DDS rotary shaft seals worldwide?

3G Electric supplies DDS rotary shaft seals worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source genuine DDS seals like the 44048020SF and deliver them to your facility. Contact us for pricing and lead time on your order.

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 suitable driver 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
DDS Rotary Shaft Seal: 1 Lip w/Spring, SF, Nitrile, 400 mm ID, 440 mm OD, 20 mm Wd (MPN 40044020SF)
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DDS Rotary Shaft Seal: 1 Lip w/Spring, SF, Nitrile, 380 mm ID, 420 mm OD, 20 mm Wd (MPN 38042020SF)
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DDS Rotary Shaft Seal: 1 Lip w/Spring, SF, Nitrile, 1.75 in ID, 2.5 in OD, 0.375 in Wd (MPN 44.4563.59.52SF)
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