Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS4, Nitrile, 2.063 in ID, 2.661 in 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, HMS4, Nitrile, 2.063 in ID, 2.661 in OD

The SKF Rotary Shaft Seal is a single-lip oil seal with a rubber-enclosed case for rough bores, featuring an HMS4 seal design. This inch-system seal has a 2.063-inch inner diameter, a 2.661-inch outer diameter, and a…

SKU 3G-OTH-124561

Brand
SKF
Item
Rotary Shaft Seal: 1 Lip w/Spring, HMS4, Nitrile, 2.063 in ID, 2.661 in OD
Category
Single-Lip Oil Seals with Rubber-Enclosed Cases for Rough Bores
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

SKF
Manufacturer Part Number
20525
Type
HMS4, Nitrile
OD
2.661 in
Wd
0.188 in
ID
2.063 in
Seal Design
HMS4
System of Measurement
Inch
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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 an HMS4 seal design. This inch-system seal has a 2.063-inch inner diameter, a 2.661-inch outer diameter, and a 0.188-inch width, constructed from nitrile material. It is identified by manufacturer part number 20525.

Frequently Asked Questions

What is the SKF Rotary Shaft Seal 20525 used for?

The SKF Rotary Shaft Seal 20525 is used to retain lubricants and exclude contaminants in rotating shaft applications. It is ideal for industrial equipment such as pumps, gearboxes, and motors where a single-lip seal with a rubber-enclosed case is needed to handle rough bore conditions.

What are the specifications of the SKF Rotary Shaft Seal 20525?

The SKF Rotary Shaft Seal 20525 has a 2.063-inch inner diameter, a 2.661-inch outer diameter, and a 0.188-inch width. It features an HMS4 seal design with a nitrile lip and a rubber-enclosed case for rough bores. This inch-system seal is manufactured by SKF under part number 20525.

Where to buy the SKF Rotary Shaft Seal 20525 worldwide?

You can source the SKF Rotary Shaft Seal 20525 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 SKF seal.

How to install the SKF Rotary Shaft Seal 20525?

To install the SKF Rotary Shaft Seal 20525, ensure the housing bore is clean and free of burrs. Apply a thin layer of lubricant to the seal lip and shaft. Use a seal driver or press to seat the seal squarely into the bore, avoiding damage to the nitrile lip. Follow SKF's generic installation guidelines for best results.

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS4, Nitrile, 3.04 in ID, 3.937 in OD, 0.25 in Wd (MPN 30360). Key specifications — System of Measurement: Inch; Brand: SKF; Seal Design: HMS4.
SKF
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS4, Nitrile, 3.04 in ID, 3.937 in OD, 0.25 in Wd (MPN 30360). Key specifications — System of Measurement: Inch; Brand: SKF; Seal Design: HMS4.
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS4, Nitrile, 1.25 in ID, 1.752 in OD, 0.313 in Wd (MPN 12371). Key specifications — System of Measurement: Inch; Brand: SKF; Seal Design: HMS4.
SKF
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS4, Nitrile, 1.25 in ID, 1.752 in OD, 0.313 in Wd (MPN 12371). Key specifications — System of Measurement: Inch; Brand: SKF; Seal Design: HMS4.
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS5, Nitrile, 22 mm ID, 35 mm OD, 7 mm Wd (MPN 22X35X7 HMS5 RG). Key specifications — System of Measurement: Metric; Brand: SKF; Seal Design: HMS5.
SKF
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS5, Nitrile, 22 mm ID, 35 mm OD, 7 mm Wd (MPN 22X35X7 HMS5 RG). Key specifications — System of Measurement: Metric; Brand: SKF; Seal Design: HMS5.
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS4, Nitrile, 15 mm ID, 24 mm OD, 5 mm Wd (MPN 15X24X5 HMS4 R). Key specifications — System of Measurement: Metric; Brand: SKF; Seal Design: HMS4.
SKF
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS4, Nitrile, 15 mm ID, 24 mm OD, 5 mm Wd (MPN 15X24X5 HMS4 R). Key specifications — System of Measurement: Metric; Brand: SKF; Seal Design: HMS4.
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS5, Nitrile, 55 mm ID, 72 mm OD, 8 mm Wd (MPN 55X72X8 HMS5 RG). Key specifications — System of Measurement: Metric; Brand: SKF; Seal Design: HMS5.
SKF
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS5, Nitrile, 55 mm ID, 72 mm OD, 8 mm Wd (MPN 55X72X8 HMS5 RG). Key specifications — System of Measurement: Metric; Brand: SKF; Seal Design: HMS5.
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS5, Nitrile, 50 mm ID, 72 mm OD, 8 mm Wd (MPN 50X72X8 HMS5 RG). Key specifications — System of Measurement: Metric; Brand: SKF; Seal Design: HMS5.
SKF
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS5, Nitrile, 50 mm ID, 72 mm OD, 8 mm Wd (MPN 50X72X8 HMS5 RG). Key specifications — System of Measurement: Metric; Brand: SKF; Seal Design: HMS5.

More from SKF

View all SKF parts →
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS5, Nitrile, 85 mm ID, 110 mm OD, 12 mm Wd (MPN 85X110X12 HMS5 RG). Key specifications — System of Measurement: Metric; Brand: SKF; Seal Design: HMS5.
SKF
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS5, Nitrile, 85 mm ID, 110 mm OD, 12 mm Wd (MPN 85X110X12 HMS5 RG). Key specifications — System of Measurement: Metric; Brand: SKF; Seal Design: HMS5.
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS5, Nitrile, 42 mm ID, 55 mm OD, 7 mm Wd (MPN 42X55X7 HMS5 RG). Key specifications — System of Measurement: Metric; Brand: SKF; Seal Design: HMS5.
SKF
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS5, Nitrile, 42 mm ID, 55 mm OD, 7 mm Wd (MPN 42X55X7 HMS5 RG). Key specifications — System of Measurement: Metric; Brand: SKF; Seal Design: HMS5.
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS4, Nitrile, 1.654 in ID, 2.323 in OD, 0.303 in Wd (MPN 16536). Key specifications — System of Measurement: Inch; Brand: SKF; Seal Design: HMS4.
SKF
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS4, Nitrile, 1.654 in ID, 2.323 in OD, 0.303 in Wd (MPN 16536). Key specifications — System of Measurement: Inch; Brand: SKF; Seal Design: HMS4.
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS4, Nitrile, 1.614 in ID, 2.323 in OD, 0.315 in Wd (MPN 16023). Key specifications — System of Measurement: Inch; Brand: SKF; Seal Design: HMS4.
SKF
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS4, Nitrile, 1.614 in ID, 2.323 in OD, 0.315 in Wd (MPN 16023). Key specifications — System of Measurement: Inch; Brand: SKF; Seal Design: HMS4.
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS4, Nitrile, 1.732 in ID, 2.32 in OD, 0.26 in Wd (MPN 17134). Key specifications — System of Measurement: Inch; Brand: SKF; Seal Design: HMS4.
SKF
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS4, Nitrile, 1.732 in ID, 2.32 in OD, 0.26 in Wd (MPN 17134). Key specifications — System of Measurement: Inch; Brand: SKF; Seal Design: HMS4.
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS5, Nitrile, 17 mm ID, 40 mm OD, 7 mm Wd (MPN 17X40X7 HMS5 RG). Key specifications — System of Measurement: Metric; Brand: SKF; Seal Design: HMS5.
SKF
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS5, Nitrile, 17 mm ID, 40 mm OD, 7 mm Wd (MPN 17X40X7 HMS5 RG). Key specifications — System of Measurement: Metric; Brand: SKF; Seal Design: HMS5.
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS4, Nitrile, 20 mm ID, 28 mm OD, 6 mm Wd (MPN 20X28X6 HMS4 R). Key specifications — System of Measurement: Metric; Brand: SKF; Seal Design: HMS4.
SKF
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS4, Nitrile, 20 mm ID, 28 mm OD, 6 mm Wd (MPN 20X28X6 HMS4 R). Key specifications — System of Measurement: Metric; Brand: SKF; Seal Design: HMS4.
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS4, Nitrile, 1.484 in ID, 2.562 in OD, 0.312 in Wd (MPN 14922). Key specifications — System of Measurement: Inch; Brand: SKF; Seal Design: HMS4.
SKF
SKF Rotary Shaft Seal: 1 Lip w/Spring, HMS4, Nitrile, 1.484 in ID, 2.562 in OD, 0.312 in Wd (MPN 14922). Key specifications — System of Measurement: Inch; Brand: SKF; Seal Design: HMS4.