Ashworth Product Technical Bulletin THE ADVANTAGE RL 75 Temprature Rating 100% Strength -50°F (-46°C) to 110°F (43°C) 90% Strength up to 170°F (77°C) 80% Strength up to 180°F (82°C) 50% Strength up to 200°F (93°C) - not recommended Belt Speed Consult Ashworth engineering BELT OPTIONS OVERLAY DESIGNATION B X-Y-Z and U X-Y-Z First Digit: B = Balanced Weave; U = Unilatral Weave X: First Number: No. of Loops per Foot of Width Y: Second Number: No. of Spirals per Foot of Length (16 for 3/4 in. pitch) Z: Third Number: Wire Gauge Examples: B30-16-17 (3/4 Inch Pitch Advantage RL 75) U42-16-16 (3/4 Inch...

TECHNICAL BULLETIN table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:7.00pt "Times New Roman", serif; } .font1 { font:9.00pt "Times New Roman", serif; } .font2 { font:11.00pt "Times New Roman", serif; } Ashworth Product Technical Bulletin THE ADVANTAGE RL 75 ♦ Maximum height equal to belt pitch ♦ Available Options: height, spacing, location, shape, number of lanes in belt. BELT WEIGHT BELT WIDTH TURN RADIUS % Inch Pitch Rod Only in. mm in. mm lbs/ft kgs/m 6 152 13.2 335 1.37 2.0 8 203 17.6 447 1.64 2.4 10 254 22.0 559 1.91 2.8 12 305 26.4 671 2.18 3.3 14 356 30.8...

TECHNICAL BULLETIN table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:7.00pt "Times New Roman", serif; } .font1 { font:8.00pt "Times New Roman", serif; } .font2 { font:9.00pt "Times New Roman", serif; } .font3 { font:11.00pt "Times New Roman", serif; } Ashworth Product Technical Bulletin THE ADVANTAGE RL 75 Nominal Size No. of Teeth Overall Diameter Pitch Diameter Hub Diameter Hub Width Bo Minimum re Maximum* inch Mm inch mm inch mm inch mm inch mm inch mm #3 12 3.14 78.8 2.92 74.1 2.26 57.3 1.50 38.1 0.75 19.1 1.50 38.1 #4 16 4.09 103.9 3.84 97.6 3.21 81.5 1.50 38.1...

Ashworth Product Technical Bulletin THE ADVANTAGE RL 75 Plain Idler Flanged Idler WEARSTRIP PLACEMENT A = V Sprocket Hub Diameter This is only a guideline; it does not take into account the influence of speed. At speeds above 75 ft/min [23 m/min], Ashworth recommends increasing the distance A and shortening the wear strips as much as one belt pitch in length. BELT SUPPORT RAILS Օ For standard acetal (POM) Advantage RL 75 belt, use UHMW capped or stainless steel support rails under the links. If the belt is supported under the rods UHMW capped rails are recommended. Eliminate any sharp corners...

Ashworth Product Technical Bulletin THE ADVANTAGE RL 75 RADIUS WEIGHT (Belt Tension) - Spiral applications only RW = R(WB+WL)(fr / fc) where: RW = Radius Weight or Belt Tension R = System Radius (i.e. radius to outside edge of belt) WB = Weight of Belt per unit of length WL = Weight of Product per unit of length fr = Friction coefficient between belt and support rails fc = Friction coefficient between belt and cage bars Calculation: (Convert all units to feet (ft) and pounds (lbs) or meters (m) and kilograms (kg)). Calculate the system radius ( R ) by measuring the inside turn radius and adding...

Ashworth Product Technical Bulletin THE ADVANTAGE RL 75 Decrease belt speed. STANDARD LOADING - Turn curve applications The allowable loading per length of belt is determined by the ratio of the inside turn radius and the radius to the tension link. Allowable Loading per length of belt = Radius to Tension Link / Inside Turn Radius Sample Calculation: Let BW = Belt Width = 30 in [762 mm] IR = Inside Turn Radius = 66 in [1676 mm] Radius to Tension Link = IR + BW = 66 [1676] + 30 [762] = 96 in [2438 mm] Allowable Loading = 96 in / 66 in [2438/1676] = 1.46 Allowable loading is therefore one product...

Ashworth Product Technical Bulletin THE ADVANTAGE RL 75 SYSTEM REQUIREMENTS STRAIGHT RUNS Minimum straight run before and after every turn must be at least 1.5 x belt width. Minimum straight run between two opposite curves is at least 2 x belt width. SPIRAL CAGE BAR CAPS / INSIDE TURN RAILS Spiral Cage Applications A stainless steel drum, stainless steel cage bars, or UHMW capped cage bars are recommended. Stainless steel may increase the driving force against the belts inside edge. Eliminate any sharp corners or rough surfaces that might gouge or prematurely wear the belt. Surface finish should...

Ashworth Product Technical Bulletin THE ADVANTAGE RL 75 FREEZERS AND CHILLERS Clearance between modules and cross rods must be maintained to prevent the modules from taking load. Periodic belt stoppage allows frost to melt and upon reentry into the freezer, the water will become ice. Accumulation between the cross rod and body module will reduce the designed clearance. In addition, ice accumulation at the belts inside edge may prevent required collapse. Therefore, it is imperative to minimize belt stoppage in freezing applications. OVERDRIVE (Spiral Cage, Ref. Technical Bulletin # "009 Measuring...