Rotary Viscous Dampers (RVD)

RVD expands our rotary motion

control capabilities

Rotary Viscous Dampers provide smooth control in

applications that require continuous or intermittent

positioning, forward, reverse and fixed path motion.

The RVD design combines low breakout friction with

viscous damping to control bi-directional rotary motion

in numerous applications.

Each RVD contains a solid, rotating element called a

"rotor". This rotor is surrounded by a thin film of silicone

fluid and sealed inside a stationary housing. The RVD's

rotor provides resistance by shearing the silicone fluid,

controlling the desired motion.

Features and Benefits

• Safely and quietly controls rotary motion

• Low initial breakaway friction for precision torque control

• Provides consistent speed control through 360° of

rotation, in both directions

• Compact, shaft-ready mounting design includes

anti-rotation keyway

• Controls linear motion through simple mechanical

integration

Wide range of ambient operating conditions - indoor or

outdoor, -20°F to +200°F (-30°C to +95°C)

• Customer-specified performance through 3-40 in-lbs.

(0.4 - 4.5 Nm.) of Torque per unit

• Maintenance-f ree - no adjustments required

RVD Application

Case Erector

RVD

Tilt Control

Damper

RVD Application

Vertical Fill / Seal

WbB ROLL OF

POUCH MATERIAL

RVD

Roll Feed

Control

FILLER TUBE

VERTICAL SEAL

BAND

HORIZONTAL SEAL

BAR AND CUT-OFF

Common Applications

• OEM Office Machines - Rollers, lids and platens

• Conveying - Rollers, buckets and diverting arms

• Tilt Damping - Door hinges and access panels

• Roll Feed Control - Smooth web tension control

• Amusement industry - Safety cages and machine guards

• Pneumatic turn table speed control

• Mechanical Control - Levers, knobs, hand cranks,

foot pedals along with cams, springs and linkages

^ ITT

Koni

Enidine

EME