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GKN Stromag Periflex® Disc Coupling Series overview: GKN Stromag Periflex® disc couplings Periflex® VN / -VP…G Series Nominal torque range 160 – 63,000 Nm Periflex® VN…G / ON Series Nominal torque range 160–63,000 Nm Periflex® VN / -VP…GB Series; with antirotation stop Nominal torque range 160 – 63,000 Nm Periflex® VN…S Series Nominal torque range 250 – 8000 Nm Periflex® VN / -VP…R Series; radial installations Nominal torque range 160 – 63,000 Nm Periflex® VN /-VP…W Series; shaft coupling Nominal torque range 160 – 63,000 Nm

GKN Stromag Periflex® Disc Coupling All issues containing details on GKN Stromag Periflex® Disc Couplings prior to this publication may no longer apply. We reserve the right to modify measurements and designs without prior GKN Stromag products conform to the quality standard Content Page The GKN Stromag Periflex® Disc Coupling concept 4 • Use in potentially explosive environments 5 • Classification rules Instructions on choosing the coupling size 6 Installation instructions and scope of delivery 7 Periflex®VN/-VP NR and Periflex®VN/-VP ECO ratings tables 8 Periflex®VN and Periflex®VP Series 12...

GKN Stromag Periflex® Disc Coupling The GKN Stromag Periflex® disc coupling concept GKN Stromag PVN couplings are highly flexible elastomer couplings with linear spring characteristics ideal for diesel engine drives. The Series covers the torque range 160 – 63,000 Nm. The external companion dimensions conform as standard to the flywheel connections under the SAE standard J620. The larger couplings are basically designed with metric flywheel connections. The GKN Stromag PVN coupling allows fast and simple connection of a flange, specifically a flywheel, to a shaft. Some designs also allow the...

GKN Stromag Periflex® Disc Coupling Instructions for the designer The GKN Stromag Periflex® VN coupling hubs are of steel or ductile cast iron. The connection ring is of aluminium. The disc tyres consist of a steel or ductile cast iron V ring with a lining of vulcanised elastomer. The variants of natural rubber (NR) can be used at temperatures of ‑50 °C to +80 °C. The variants of temperature resistant material (ECO) can be used at temperatures of -40 °C to +120 °C. In addition, ECO is resistant to ozone and oil. Damping work may cause the flexible element to reach temperatures higher than ambient....

GKN Stromag Periflex® Disc Coupling Fail-safe device The Stromag Periflex® VN coupling is available with an fail-safe device. A rupture in the flexible element causes claws to intermesh, forming a torsionally rigid, backlash connection between the drive and output sides. Temporary emergency operation is possible with limited torque. The maximum torques and speeds must be calculated separately on the basis of torsional vibrations transferred via a torsionally rigid structure. Instructions on choosing the coupling size The static and dynamic characteristics of GKN Stromag Periflex® VN couplings...

GKN Stromag Periflex® Disc Coupling Installation instructions and scope of delivery The GKN Stromag Periflex® VN coupling is fitted with a connection ring (1) that allows it to be bolted directly to the engine’s flywheel. The hub (3) of the disc tyre (2) is secured to the machine with bolts (4). The drive and output sides are moved together to the prescribed distance (blind installation), whereby the tyre’s teeth must engage over the entire length of the connection ring. The maximum displacements can be taken from the dimensions and ratings tables. Delivery of the standard version includes: 1 =...

GKN Stromag Periflex® Disc Coupling GKN Stromag Periflex® VN NR Series output table Nominal Coupling size

GKN Stromag Periflex® Disc Coupling GKN Stromag Periflex® VP NR Series ratings table Nominal Coupling size 1) The values listed in the tables refer to the disc tyre characteristics. 2) For: TW = 0.2 • TKN; T = 0.8 • TKN; f = 10 Hz; ϑ = 30 °C 3) This value must be reduced by the temperature factor when the coupling temperatures are higher than 30 °C. 4) Tolerances on the materials may be as high as ±15%. Temperature factor SϑPKV 5) The PKV 60 value represents the damping power that can be absorbed over a period of 60 minutes. The damping power that can be absorbed permanently is PKV∞ = 0.5 • PKV...

GKN Stromag Periflex® Disc Coupling GKN Stromag Periflex® VN ECO Series ratings table Nominal Coupling size

GKN Stromag Periflex® Disc Coupling PVP ECO Series ratings table Nominal Coupling size Max torque alternating torque 1) The values listed in the tables refer to the disc tyre characteristics. 2) For: TW = 0.2 • TKN; T = 0.8 • TKN; f = 10 Hz; ϑ = 30 °C 3) This value must be reduced by the temperature factor when the coupling temperatures are higher than 30 °C. 4) Tolerances on the materials may be as high as ±15%. 1.0 Temperature factor SϑPKV 5) The PKV 60 value represents the damping power that can be absorbed over a period of 60 minutes. The damping power that can be absorbed permanently is...

GKN Stromag Periflex® Disc Coupling GKN Stromag Periflex® VN...G Series Mass moment of inertia kg m2 *) Dim l1 not applicable on this version 1) Dim. l can be modified by moving the connection ring within specified tolerances 2) at max. bore d

GKN Stromag Periflex® Disc Coupling Periflex® VN…G Series Mass moment of inertia kg m2 Periflex® VN 544 Periflex® VN 549 Periflex® VN 666 *) Dim l1 not applicable on this version 1) Dim. l can be modified by moving the connection ring within specified tolerances 2) at max. bore d