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SKF CRW1 Single-Lip Oil Seal with Metal Case - Single-Lip Oil Seals with Metal Cases for Smooth Bores
SKFSingle-Lip Oil Seals with Metal Cases for Smooth Bores

SKF CRW1 Single-Lip Oil Seal with Metal Case

The SKF Rotary Shaft Seal is a single-lip oil seal with a metal case for smooth bores, featuring the CRW1 seal design. This inch-system seal has a 2.047-inch inner diameter, a 2.561-inch outer diameter, and a…

SKU 3G-OTH-124583

Brand
SKF
Item
CRW1 Single-Lip Oil Seal with Metal Case
Part Number
20420
Category
Single-Lip Oil Seals with Metal Cases for Smooth Bores
Available to Order
Also known as:20420SKF
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Technical Specifications

SKF
Manufacturer Part Number
20420
Type
CRW1, Nitrile
OD
2.561 in
Wd
0.315 in
ID
2.047 in
Seal Design
CRW1
System of Measurement
Inch

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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 metal case for smooth bores, featuring the CRW1 seal design. This inch-system seal has a 2.047-inch inner diameter, a 2.561-inch outer diameter, and a 0.315-inch width, constructed from nitrile material with a spring-loaded lip (MPN 20420).

Frequently Asked Questions

What is the SKF Rotary Shaft Seal CRW1 used for?

The SKF Rotary Shaft Seal CRW1 is used to retain lubricants and exclude contaminants in rotating shaft applications. It is commonly installed in gearboxes, pumps, and industrial machinery where a single-lip seal with a metal case is required for smooth bore housings.

What are the specifications of the SKF Rotary Shaft Seal 20420?

The SKF Rotary Shaft Seal 20420 has a 2.047-inch inner diameter, a 2.561-inch outer diameter, and a 0.315-inch width. It features a CRW1 seal design with a single nitrile lip and a spring, and uses the inch system of measurement.

Where to buy SKF Rotary Shaft Seal 20420 worldwide?

You can source the SKF Rotary Shaft Seal 20420 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring the seal reaches your facility reliably.

How to install the SKF Rotary Shaft Seal CRW1?

To install the SKF Rotary Shaft Seal CRW1, ensure the housing bore is clean and smooth. Press the seal evenly into the bore using a suitable installation tool, applying force only on the outer metal case to avoid damaging the nitrile lip and spring.

Used in

Common applications for SKF
Electric motors — SKF 1200 and 1300 series self-aligning ball bearings with C3 clearance for thermal expansion and misalignment.
Gearboxes — SKF CRW1 single-lip oil seals with nitrile elements to retain lubricant and exclude contaminants.
Pumps — SKF self-aligning ball bearings with tapered 1:12 bores for mounting on adapter sleeves.
Conveyors — SKF self-aligning ball bearings with cylindrical bores to accommodate shaft deflection.
Fans and blowers — SKF high-clearance self-aligning ball bearings for high-speed operation and misalignment.
Material handling — SKF oil seals for smooth bores to protect bearings from dust and water ingress.
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SKF Products

3G Electric supplies SKF single-lip oil seals with metal cases for smooth bores. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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