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How to Influence Gloss and Friction Coatings or Cast Films by the Chill Roll Surface Design

(The Place)

May 30, 2004, ... easy changing of the bearings. Nickel plate internally to avoid deposits and heat spots. Inform plater if using ozone. Conclusions No single party involved in production can be responsible to solve ...

Fun with Force Gauges

(Magazine)

February 28, 2004, ... caused by hysteresis and friction. Measure torque of bearings, brakes, and clutches Attach the strap to the surface of a braked or clutched roller or core. Pull with the force gauge to measure the ...

Products

(Magazine)

September 29, 2003, ... for a DC input/output operation. Electronics and coil windings are hermetically sealed against hostile environments to IEC standard IP-68. Through-bore design allows for air purging of sensor's bearings ...

A Slippery Answer to Web Scratching

(Magazine)

June 30, 2003, ... and inertial torque). The result: Bad idlers are repaired, and marginally driven rollers are modified with more wrap, higher friction, or better bearings. Also, an idler roller minimum performance is identified ...

A Well-Balanced Process Line

(Magazine)

December 31, 2002, ... hazardous vibrations to other machinery parts; surging and varying roll speeds as in the case of idler rolls; and the wear and destruction of bearings. There are two other developments that impact your ...

Thin Webs without Wrinkles

(Magazine)

September 30, 2002, ... of rubber support disks. On each end of the sleeve, there are end collars mounted on bearings and an adjustable axle. The end collars clamp and hold the sleeve in place. Importantly, however, the end collars ...

Boston Gear Celebrates 125th

(News | New Products)

July 15, 2002, Boston Gear, a member of the Colfax Power Transmission Group, reports the celebration its 125th anniversary this year. Boston Gear says it's been a pioneer and premiere provider in the power transmission ...

Products

(Magazine)

March 31, 2002, ... m (80 in.) and roll weights in excess of 4,000 kg (8,000 lb). Manufactured with linear slides and bearings throughout for precision movement. Automatic tension control is provided via load cell and ultrasonic ...

The Power Savers

(Magazine)

February 28, 2002, ... print station was thoroughly overhauled and equipped with new gears, rollers, and bearings. The electronic register control also was upgraded for easier setup, and all internal components were completely ...

Metallizer Makes a Winning Wager

(Unprinted Rolls)

February 28, 2002, ... deposition, friction in roller bearings, and hundreds of other bits of information. If it senses an increase in bearing friction, for example, Ei3 alerts us right away and tells us which bearing it is, ...

Products

(Magazine)

January 31, 2002, ... with precision chilled iron coating rolls and bearings for accurate coat weight control. Laminators are available in a number of configurations including two- and three-roll pressure nips. All clean room ...

Shaft Collar Decisions Can Be Momentous

(Magazine)

January 31, 2002, ... on the shaft using compression. The device slides onto the shaft with one hand. When released, the ball bearings compress against an inner retention ring, effectively locking the collar to the shaft with ...

Wide Web Handling and the Problems It Can Bring

(Magazine)

November 30, 2001, ... for anticipated run life. And, the spaced bearings must be robust enough to withstand the extra loads that may be applied by the differential jackscrews. Since this is my final column, I want to take ...

More Causes, More Cures For Web Scratches

(Magazine)

July 31, 2001, Last month I wrote that idler rolls (in high-speed processes) do not always turn at web speed even though they have sufficient wrap and free-turning bearings, Last month I wrote that idler rolls (in ...

Slitter Savvy: Visual Roll Defects & Remedies

(Magazine)

July 31, 2001, ... by dull slitter blades, excessive overspeed of bottom knifes, and/or worn slitter bearings. Nicked blades cause roll edges to have small and very short pieces of web protruding from the smooth roll ...

Polymers/Laminations/Adhesives/Coatings/Extrusions

(Magazine)

July 31, 2001, ... cannot be zone controlled or coupled with a gauge and can give only an averaged improvement over the width of the material. Tandem bearing sets can minimize runout due to bearings. This requires the critical ...

Web Scratch Solution: Regulate Your Running Rolls

(Magazine)

June 30, 2001, ... bearings are essential on all idler rolls but do not ensure that the surface speeds will match at high speeds. Usually the web's frictional driving force is reduced significantly when the web speed is increased. ...

Products

(Magazine)

May 31, 2001, ... Mfr. explains that the higher speed-up to 1,500 rpm, rather than the usual 400-600 rpm — is due to the incorporation of miniature ball bearings into the rotor and gear side of the clutch. Lifting ...

Products at CMM

(Magazine)

March 31, 2001, ... blade. Visit Booth 7009 at CMM International. Rollers Eliminate Standard Bearings Martin Automatic Inc., Rockford, IL; 815/654-4836; martinauto.com Airnertia Series of rollers is designed to eliminate ...

When It Comes to Positioning, Do Rulers Really Measure Up?

(Magazine)

March 31, 2001, ... moved by servomotors, free of operator involvement. Linear bearings are used for position accuracy, speed, and reliability. “There are a lot of different combinations available. It's a question of budget ...