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SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS5, Nitrile, 18 mm ID, 30 mm OD - Single-Lip Oil Seals with Rubber-Enclosed Cases for Rough Bores
SKFSingle-Lip Oil Seals with Rubber-Enclosed Cases for Rough Bores

SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS5, Nitrile, 18 mm ID, 30 mm OD

The SKF Rotary Shaft Seal is a single-lip oil seal with a rubber-enclosed case for rough bores, featuring the HMS5 seal design. This metric seal has an 18 mm inner diameter, 30 mm outer diameter, and 7 mm width…

SKU 3G-OTH-124574

Brand
SKF
Item
Rotary Shaft Seal: 1 Lip w/Spring, HMS5, Nitrile, 18 mm ID, 30 mm OD
Category
Single-Lip Oil Seals with Rubber-Enclosed Cases for Rough Bores
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Technical Specifications

SKF
Manufacturer Part Number
18X30X7 HMS5 RG
Type
HMS5, Nitrile
OD
30 mm
Wd
7 mm
ID
18 mm
Seal Design
HMS5
System of Measurement
Metric
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SKF Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SKF Rotary Shaft Seal is a single-lip oil seal with a rubber-enclosed case for rough bores, featuring the HMS5 seal design. This metric seal has an 18 mm inner diameter, 30 mm outer diameter, and 7 mm width, constructed from nitrile rubber with a spring. It is identified by manufacturer part number 18X30X7 HMS5 RG.

Frequently Asked Questions

What is the SKF 18X30X7 HMS5 RG rotary shaft seal used for?

The SKF 18X30X7 HMS5 RG is a single-lip oil seal designed to retain lubricants and exclude contaminants in rotating shaft applications. It is commonly used in industrial gearboxes, pumps, and motors where a metric 18 mm shaft and 30 mm housing bore require reliable sealing.

What are the specifications of the SKF 18X30X7 HMS5 RG seal?

This SKF seal has an inner diameter of 18 mm, outer diameter of 30 mm, and width of 7 mm. It features the HMS5 design with a rubber-enclosed case for rough bores, a nitrile rubber lip, and a spring. The manufacturer part number is 18X30X7 HMS5 RG.

Where to buy the SKF 18X30X7 HMS5 RG seal worldwide?

3G Electric supplies the SKF 18X30X7 HMS5 RG seal worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this SKF seal for your application.

How to install the SKF 18X30X7 HMS5 RG rotary shaft seal?

Clean the shaft and housing bore thoroughly before installation. Apply a thin lubricant to the seal lip and shaft. Use a proper seal driver or press to install the SKF seal squarely into the bore, ensuring the spring side faces the medium being sealed. Avoid damaging the nitrile lip.

Used in

Common applications for SKF
Heavy machinery gearboxes — SKF spherical roller bearings (e.g., 24056 CCK30/W33) for high radial load capacity
Electric motor repair — SKF cylindrical roller bearings (e.g., NJ 307 ECP/C3) for free axial expansion
Pump shaft sealing — SKF CRWA1 rotary shaft seals (e.g., 17100) for fluid retention in rotating equipment
Conveyor system maintenance — SKF wear sleeves (e.g., 99274) to protect shafts from seal abrasion
Machine tool spindles — SKF angular contact bearings (e.g., 7413 BGBM) for axial load support in duplex sets
Industrial fan assemblies — SKF spherical roller bearings (e.g., 23044 CC/W33) for misalignment accommodation

SKF Products

3G Electric supplies SKF 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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