Flex-Lag® Rubber Lagging
Flex-Lag® Rubber Lagging has been developed in multiple styles including Light-Duty, Plain-Pattern, and Diamond-Pattern to meet the needs of any application.
Because the lagging comes in rolls, virtually any pulley dimension can utilize Flex-Lag.
Features and Benefits
Light-Duty
- Specially designed for pulleys with diameters as small as 50 mm.
- Moisture is channeled between small raised buttons that support and grip the belt and deliver superior traction.
- Available in SBR
- Can be made in rolls up to 75m long, dependent on lagging thickness
Plain-Pattern
- Helps prevent belt slippage in dry environments
- Provides larger surface contact area relative to other patterned lagging
- Horizontal grooves channel water and debris while providing a better dynamic interaction with the belt compared to sheet lagging
- Available with FRAS approved rubber, marked in blue for easy identification on site
- Drainage grooves strategically placed at intervals of pi (3.14") for easier trimming/installation
Diamond-Pattern Rubber
- Diamond pattern features a bidirectional design for superior water-shedding characteristics
- Horizontal grooves provide a second method to disperse water and debris off the lagging and prevent hydroplaning
- Performs well in both dry and wet applications
- Available with FAAS approved rubber, marked in blue for easy identification on site
- Drainage grooves strategically placed at intervals of pi (3.14") for easier trimming/installation
Specifications
- Minimum Pulley Diameter:
- Light Duty: 2" (50 mm)
- Plain and Diamond-Pattern:12" (300 mm)
- Thickness:
- Light Duty: .3" (7.5mm)
- Plain and Diamond-Pattern: 3/8"–1" (10–25 mm)
- Temperature Rating: 5° F to 185° F (-15° C to 85° C)
- Rubber Compound: SBR (Styrene-Butadiene-Rubber)
- Rubber Hardness: 68 ± 3 Shore A
- FRAS (Fire Resistant Anti Static) - MHSA Certification # MSHA NO. IC-190
- Roll Width:
- Light Duty: 8" (200 mm)
- Plain and Diamond-Pattern: 9.41" (239 mm)
- Roll Length:
- Light Duty: 10.8 ft. (3.3 M)
- Plain and Diamond-Pattern: 23.6 ft. (7.2 m)
Installation
- Reference Strip Selection in the sell sheet to determine the appropriate number of strips/rolls required for your application
- Flex-Lag does not require removing the pulley from the conveyor system
- A labor-saving cold vulcanization process with Flex-Lag Adhesive makes on-site installation fast, simple, and efficient
- Products
- Specifications
- Instructions
- Sales Support
How to Select the Right Lagging Product
To select the right pulley lagging, be sure to consider the environmental conditions around the pulley:
- Belt condition, i.e., wet or dry
- The service required for bonded lagging versus weld-on
- The expected wear life of the lagging
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Flex-Lag® Rubber |
Flex-Lag® Ceramic |
Flex-Lag® Weld-On™ |
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Criteria |
Light Duty |
Plain |
Diamond |
Diamond Pattern |
Medium Ceramic |
Full Ceramic |
Rubber Diamond |
Full Ceramic |
|
Thickness Range Available* |
7.5 mm |
10-25 mm |
10-30 mm |
12-30 mm |
12-30 mm |
12-30 mm |
15 mm |
15 mm |
|
Belt Width* |
Any Width |
Any Width |
Any Width |
Any Width |
450-3000 mm |
450-3200 mm |
450-3200 mm |
450-3200 mm |
|
Minimum Pulley Diameter |
50 mm |
300 mm |
300 mm |
300 mm |
300 mm |
300 mm |
400 mm |
400 mm |
|
Dry Friction |
Very Good |
Excellent |
Very Good |
Very Good |
Excellent |
Excellent |
Very Good |
Excellent |
|
Wet Friction |
Average |
Average |
Good |
Very Good |
Excellent |
Excellent |
Good |
Excellent |
|
Wet/Muddy Friction |
- |
Average |
Very Good |
Very Good |
Very Good |
Very Good |
Very Good |
Very Good |
|
Wear Life |
Good |
Good |
Good |
Very Good |
Excellent |
Best |
Good |
Best |
|
Ease of Installation |
Good |
Good |
Good |
Good |
Good |
Good |
Best |
Best |
|
Drainage Grooves |
No |
Yes |
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FRAS (Fire Resistant Anti-Static) |
No |
Available |
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Rubber Compound |
SBR |
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Hardness (Shore A) |
68 +/- 3 |
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Ceramic Compound |
- |
- |
- |
Al2O3 |
Al2O3 |
Al2O3 |
- |
Al2O3 |
|
Ceramic Coverage |
- |
- |
- |
13% |
39% |
80% |
- |
74% |
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Can be used in an autoclave (with application of uncured rubber) |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
No |
No |
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Operating Temperature |
-15° - 85° C |
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COF Values |
Ask Your Local Sales Representative |
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*Additional thicknesses and widths available as special orders.



