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SKF Rotary Shaft Seal: 1 Lip w/Spring, CRW1, Nitrile, 2.047 in ID, 2.561 in OD - Single-Lip Oil Seals with Metal Cases for Smooth Bores
SKFSingle-Lip Oil Seals with Metal Cases for Smooth Bores

SKF Rotary Shaft Seal: 1 Lip w/Spring, CRW1, Nitrile, 2.047 in ID, 2.561 in OD

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
Rotary Shaft Seal: 1 Lip w/Spring, CRW1, Nitrile, 2.047 in ID, 2.561 in OD
Category
Single-Lip Oil Seals with Metal Cases for Smooth Bores
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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
View Full Spec Sheet

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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
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 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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