Fukudaco Forsheda V-Ring

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Fukudaco Forsheda V-Ring

Fukudaco, Japan

Manufacturer: Fukudaco

Overview

Widely adopted across various applications and environments worldwide, V-ring seals consist of a single material, eliminating the need for metal or fiber reinforcements. These rubber seals actively utilize the flexibility of rubber to effectively seal the stationary counterface with their lips, functioning as face seals. Furthermore, when used as stationary seals, they perform exceptionally well even at high peripheral speeds.

Applications

Rotating equipment such as motors and pumps
Rotating parts of large machinery (wind turbines, paper machines, steel manufacturing machines, and others)

Features

Accommodates a wide range of shaft diameters and follows shaft misalignment and eccentricity
Minimizes power loss and frictional heat generation
Easy to install

Available in various cross-sectional shapes and materials (Nitrile rubber, Fluoro rubber, etc.).

Forsheda V-Ring

Be original

The Forsheda V-Ring is a rubber seal for rotating shafts developed by Forsheda AB of Sweden in the 1960s.

With over 50 years of history, the Forsheda V-Ring remains widely used in a variety of applications around the world today.

The unique shape and function of the Forsheda V-Ring allow it to retain grease in a wide variety of bearings while preventing the ingress of dirt, dust, water, and mixtures thereof. It is also used as a secondary seal when other seals are unable to perform their original sealing function in harsh environments.

Features of Special Machining

Sealing Performance: Ensures effective sealing.
Compliance with Axial Shaft Runout: Follows axial shaft movement.
Stable Lip Contact Surface Pressure: Maintains consistent contact pressure.
Long Lifespan: Durable design for extended use.

Material Properties

Ozone Resistance: Withstands exposure to ozone.
Wear Resistance: Highly resistant to wear and tear.
Wide Range of Materials: Available in NBR, FKM, CR, HNBR, and EPDM.
Low Permanent Compression Set: Retains shape and function over time.
Versatile Applications: Suitable for various applications.

Specifications

Available Sizes: Ranges from φ1.5mm to φ20m.
Variety of Types: 8 different types available.
Original Brand: Over 50 years of proven track record.
Reliability: Trusted performance.
Trademark Registration: 1309002.

Features and Operating Principles

Fukudaco

The Forsheda V-ring is a rubber seal made from a single material without the use of metal or fiber reinforcements.

It is easy to install and is typically stretched and mounted onto the shaft. It can be installed over large components such as flanges or pulleys. The Forsheda V-ring is secured to the shaft by the elastic tension of the rubber.

The operating principle is that when the shaft rotates, the V-ring rotates with it, acting as a face seal against a stationary counterface. The sealing surface can be a housing, washer, bearing end face, or the metal case of an unmarked oil seal.

The flexible lip of the V-ring provides excellent sealing performance with minimal contact pressure against the sealing surface. The installation width can be adjusted for dry operation. Additionally, the flexible lip adapts to shaft runout and eccentricity.

Type

A	S	L	LX	RM	RME	AX
Standard goods			Made-to-order products

Φ2.7mm to Φ2,010mm	Φ4.5mm to Φ210mm	Φ105mm to Φ2,025mm	Φ135mm to Φ2,025mm	Φ300mm to Φ2,010mm	Φ300mm to Φ2,010mm	Φ200mm to Φ2,020mm
Highly versatile standard-type	Allows for firm attachment to tapered, wide-body shafts	Compact design with a small cross-sectional area	Compact design with a very small cross-sectional area	It is a heavy-duty seal for large-diameter, high-speed applications in steel mills and paper mills, and is also used as a secondary seal in heavy-duty applications involving water and contaminants.

Material

The most commonly used material is Nitrile Rubber (NBR510), which possesses excellent overall properties. For applications where temperatures exceed 100°C or where sealing corrosive fluids, use Fluoro Rubber (FKM907/900). Forsheda V-rings can be selected from a wide range of materials.

To select the optimal material, consider the following conditions: