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PULLEYS & LAGGING

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Replaceable Rim Lagging™

Wing Pulley
Wing Pulley ID

Benefits

Patented Replaceable Rim Lagging™ (RRL™) is an innovative way to cover new pulleys and recover old pulleys. Engineered sections are made for specific pulleys and effectively cover the pulley face in a protective shell of rubber and steel and are an ideal way to save money and time. Can be installed on new pulleys in our plant or on the pulley in the field.

  • Saves up to 70% on labor costs compared to other styles of replaceable lagging
  • No layout necessary to fit to existing pulleys
  • No cutting necessary: eliminates waste and scrap pieces
  • Reduces conveyor downtime and reduces costs associated with pulley installation and removal
  • Easy on/Easy off principle means Douglas® RRL™ may be installed in the field without removing the pulley or the conveyor belt
  • Minimum gap between sections means the highest possible level of belt to pulley contact and results in a higher level of traction
  • Order RRL™ with any new Douglas® pulley and we will install it for free

Construction

Douglas® Replaceable Rim Lagging™ (RRL™) is constructed of the highest quality materials available and to the highest quality standards in the industry. All RRL™ is vulcanized in house using state of the art computer controlled autoclaves. Standard RRL™ is manufactured with 1/2” 60-65 Durometer SBR compound suitable for a wide variety of applications and is bonded to a 3/16” solid steel backing plate and ROLLED CROWN FACE standard. Flat face is available. Diamond grooving is standard making the mounting of RRL™ fast and easy.

Weld on RRL™ is the most commonly ordered replaceable lagging system. Bolt-on is also available.

Installation

  1. Follow all OSHA, state and owner safety procedures. Lock-out, tag-out all equipment before servicing, never, never operate, adjust or install equipment on a moving conveyor.
  2. Clean pulley face of dirt, buildup and old rubber.
  3. Place first rim segment on pulley. Hold in place with welder’s clamps each end.
  4. It may be necessary to pull the middle down with chain. Be sure each segment fits snug against face (prevents segment flexing and weld fatigue).
  5. Tack in middle and both ends of pulley rim. Tack 1” long every 6” across pulley face.
  6. Place second rim segment on pulley with approximately 3/16” to 1/4” gap between first rim segment. Tack weld same manner.

Replaceable Rim Lagging™ Section Chart

Diameter

8

10

12

14

16

18

20

24

30

36

42

48

Weight P.I.L.

1.47

1.74

2.09

2.44

2.8

3.48

3.63

4.18

5.23

6.28

7.33

8.37

# of Segments Required

2

3

3

3

4

4

4

4

4

5

5

5


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All dimensions and specifications subject to change without notice. Certified dimensions and specifications of ordered material available on request.
Copyright © 2011, Douglas Manufacturing Co., Inc., Pell City, AL 35125-1515, (205) 884-1200, sales@douglasmanufacturing.com. All rights reserved.