Meritor MG vs Silverback Friction Evaluation March 2012 Silverback HD Silverback HD web site: www.silverbackhd.com - Canadian flag does not mean the product is made in Canada - Silverback brand is trademarked by a company called Chinada Holdings, Inc. in Chicago, IL - Chinada Holdings, Inc. owners are Doug Kelvin and Barry Schwartz who also own Chinada Industries, Inc in Mississauga, Ontario - Chinada imports heavy duty truck components that are manufactured in China – not Canada - The manufacturing source of Silverback products is unknown, not disclosed on the Silverback web site Meritor MG vs Silverback Friction Evaluation The attached competitor comparison information was provided by Fras-Le North America. - Silverback testing was conducted at Greening Labs Meritor, Inc. is the exclusive distributor of Fras-Le brake block and lining in North America. Meritor MG vs Silverback Friction Evaluation Correct Friction Material Comparisons - Silverback’s comparisons to Meritor “MA” OEM production friction materials are false. - Silverback friction is Chinese-made aftermarket-only, not used in North American OEM brake production. Correct material comparisons are shown below: MERITOR "MG" FRICTION PRODUCTS Competitive Mix Comparisons This chart does not imply that the competitive material shown is equivalent to Meritor Genuine. Aftermarket materials may differ slightly in axle rating or AL factor from the Meritor OE mixes or other mixes shown, but are in the most similar category for comparison purposes only. Category Description GAWR Rating AL Factor Meritor "MG" Friction Competitors Silverback Better Economy 20k 165 AL Best Standard 21K 180 AL Good Economy 23k 165 AL Better Standard 23k 180 AL Best Premium 23k 180 AL Special App. Metallic 25K 180 AL Special App. Combination 23 - 26k 180 AL EG MG1 EG2 MG2L MG2 MET CG SB20 --- SB23 SB23HTP --- --- --- Meritor MG vs Silverback Friction Evaluation The following brake lining and brake drum wear comparisons were provided by Fras-Le North America based on the following test criteria. - Wear vs. Temperature test TP212A - Meritor 16.5” x 7” Q Plus brakes - Meritor cast drum - AL factor 165 - 20K Axle load - Wear testing is conducted at 250, 350, 450, 550 and 650 degrees F, from 40mph to 20mph constant decel rate of 3 ft/s2. - Data points are the average of 1,000 brake snubs at each temperature. Meritor MG vs Silverback Wear Comparison Lining Loss (cc) EG vs SB20 Lining Wear 160 140 120 100 80 60 40 20 0 250 350 450 Degrees F EG SB20 550 650 Meritor MG vs Silverback Wear Comparison EG vs SB20 Brake Drum Wear Drum Loss (grams) 250 200 150 100 50 0 250 350 450 Degrees F EG SB20 550 650 Meritor MG vs Silverback Wear Comparison Lining Loss (cc) EG2 vs SB23 Lining Wear 160 140 120 100 80 60 40 20 0 250 350 450 Degrees F EG2 SB23 550 650 Meritor MG vs Silverback Wear Comparison Drum Loss (grams) EG2 vs SB23 Brake Drum Wear 350 300 250 200 150 100 50 0 250 350 450 Degrees F EG2 SB23 550 650 Meritor MG vs Silverback Friction Evaluation Overall, Silverback friction wears twice as fast as Meritor MG comparable mixes Silverback wear gets noticeably worse at higher temps. - Between 550 and 650 degrees, Silverback SB23 causes almost 1.25 pounds of drum loss (310 plus 246 grams). SB23 lining wear looks good with only 4cc’s loss at 250 degrees, however it also causes 81 grams of drum loss at 250 degrees. That may indicate swelling of the block that could be causing other brake issues such as drag. IMPORTANT! Fleets will DOUBLE their number of relines using Silverback! Meritor MG Silverback Friction Evaluation Ceramic fibers are used for producing fireproof fabrics and building materials because of a higher level of heat insulation v other manmade fibers. Ceramic fibers are also used in premium automotive brake disc pads, especially for racing, where extreme brake temperatures are reached. However, as indicated by the wear comparisons, ceramic fibers add nothing to Silverback’s performance, especially at the higher temperatures. Most commercial brake block utilizes a form of chopped fiberglass. - Chopped fiberglass is a U.S.A. safety requirement because the fibers are small and can be breathed out or absorbed by the body. - If man-made fibers are too long, they can be trapped in the lungs and cause health problems. Do the ceramic fibers used in Chinese brake block meet U.S. safety requirements? Does Silverback provide MSDS safety sheets? IMPORTANT! Ceramic fibers do not offer an improvement vs. other man-made fibers & may be a safety hazard. Meritor MG Aftermarket Friction Man-made fiber is only one ingredient in a friction material formulation. Other ingredients include: - Friction “modifiers” (rubber, metals, nut shells, denim, etc.). Modifiers effect co-efficient of friction and wear. - Resins. Resins are the “glue” that holds the dry brake block ingredients together. Resins are available in various formulations to withstand a variety of temperature levels. - Resins, more than any ingredient, determine the heat-resistance of brake block. Fibers, in brake block, act as the binder to hold the other ingredients together with the resin. Friction material formulations are designed to meet the specific performance and life needs for the variety of commercial vehicle applications. Meritor MG Friction Meritor MG uses market-proven quality ingredients to achieve the highest level of vehicle braking performance and life. Meritor MG has produced commercial vehicle friction materials, for the North American market, for almost 30 years. Meritor, Inc. is the largest worldwide manufacturer of commercial vehicle braking systems. Meritor is the exclusive distributor of Meritor MG aftemarket friction in North America. IMPORTANT! Friction materials produced and supplied by the market leaders in commercial vehicle braking or from an unknown, unproven source. Which product do you want to rely on to stop your 80,000lb. vehicle?
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