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Support Your Rollers

(Magazine)

August 31, 2007, ... applications, overly greased bearings often have higher rotational drag than I’d like to see in my idler rollers. If the live shaft roller has an exceptionally long shaft or journal (something that ...

Booth Listings & Product Highlights

(Magazine)

March 31, 2007, ... adjustable-lip or Liberty fixed-lip die. Typically includes a fluid-delivery system, an adjustable support for positioning the die lip with respect to the web, idler rolls, and a precision backing roll. ...

What's Ne

(Magazine)

December 31, 2006, ... American Mfg. Co., Cleveland, OH; 216/271-6000; namfg.com Integrated web guide and splice table design combines two functions into one and reduces in-machine web path and redundant idler rolls. Available ...

Print Quality Sealed!

(Archive)

May 30, 2006, ... through the idler rolls. That allows us to maintain the printer in position and in alignment constantly.” With the Bell-Mark now an important fixture within its operation, MFM print capabilities meet ...

New Products

(Magazine)

December 30, 2005, ... need to be removed from the web, saving time and offering ease of use. Tapes are constructed with an aggressive adhesive to assure strong splices. Also reported ideal for wrapping idlers and other in-process ...

Converting Rx for Bowed Rollers

(Web Lines)

October 30, 2005, ... bow-shaped roller. The outside of a bowed roller is a rubber sleeve, internally supported by a series of narrow idler rollers mounted on a bent shaft. For some thicker web applications, the rubber sleeve ...

PRINT & CONVERTER 05 New Product Digest

(Magazine)

June 29, 2005, Catch a glimpse of the innovative equipment and materials that will be on display at the upcoming Print 05 & Converting 05 Expo. Machinery, Accessories, Services New Idler Design Aids Live Shaft Technology ...

Concave Rollers Pros & Cons

(Magazine)

June 29, 2005, ... idlers. Pro #3: Concave rollers can work at high speeds. It is easy to add air-lubrication-preventing texture to a concave roller. Concave rollers are not dependent on rubber deformation or rubber sleeve ...

A Communication from the PLACE Div. of TAPPI

(Magazine)

April 29, 2005, ... rolls are possible, the discussion covers five basic types to include crowned and concave idler rolls, grooved rolls that are either rigid or flexible, nip type, curved axis rolls and bars, and expanding ...

New Product Digest, Part 1

(Magazine)

March 30, 2005, ... from 2–1,500 in./min. Accommodates samples to 2 in. wide with a maximum peeling length of 12 in. Adjustable test angles of 90, 135, and 180 deg can be set. Visit booth 3659. Idlers Grip the Web Componex, ...

Why Tension?

(Magazine)

January 30, 2005, ... should tension the web enough to pull out the web bagginess. In long horizontal spans, tension is needed to reduce excessive catenary sag. Tension is needed to overcome idler roller force demands, such ...

New Product Digest, Part 1

(Magazine)

December 30, 2004, ... Mississauga, ON, Canada; 905/670-8533; nyquist-systems.com The Web Inspector2 uses high-speed line scan cameras that allow for inspection of the web in a stabilized condition as it runs over an idler. ...

Who Likes Film?

(Magazine)

December 30, 2004, ... more scratching, it will not. Slip is the cause of scratching, not roughness. Fight the anti-slip battle in two ways: Use textured or grooved rollers to maintain traction, and improve idler roller performance ...

Web Tension 101

(Magazine)

November 29, 2004, ... with all machine idler rolls and driven rolls to ensure proper web handling and control. The web handling principle states a web will seek to align itself perpendicular to an idler or driven roll. This ...

The Harms of Harmony

(Magazine)

November 29, 2004, ... Now drive and idler rollers both are suspects. Initially, look at the local tension zone, but also look at the immediate upstream tension zones. Don’t be fooled into thinking a high-friction drive roller ...

Mechanics of Tension Control, Part II

(Archive)

November 29, 2004, ... at the unwind or rewind shaft and an idler or driven roll. Both sensors detect RPM. They can be encoders or tachometer generators. Machine speed is constant and known. Unwind and rewind roll speeds both ...

WHAT'S NE

(Magazine)

October 30, 2004, ... dirt and contaminants off of moving webs. Able to slide over existing idler rolls, it is available in rolls 400 in. long or in cut lengths, in a wide range of sizes from 1.5–6 in. dia. Clean Webs, ...

10 Tips on Antiwrinkle Rollers

(Magazine)

September 29, 2004, ...  Don't use an antiwrinkle roller if a standard idler will solve the problem. My first approach is always to try and resolve wrinkling by optimizing standard idler rollers. Remember that friction, wrap angle, ...

Products

(Magazine)

July 30, 2004, ... Kurz, Maxson Automatic, TAKK Industries, and Webex. Machinery, Accessories, Services Rolls Bear High Loads Webex, Neenah, WI; 920/729-6666; webexinc.com FeatherLight carbon fiber composite idlers ...

Friction Circles on a Winter's Da

(Magazine)

December 31, 2003, ... uses traction in the machine direction to overcome roller bearing and inertial drag. I've had clients tell me “the steering roller slips before the other idler rollers.” Since a steering roller has more ...