Chains. Section Contents

Transcription

1 s Section ontents ROLLR INS eneral Description Ordering Information Multi-Strand Selection harts Transmission Series onveyor Series eavy Series ngineering Roller ttachments ollow Pin LOK INS Selection harts/dimensions L (L) INS Selection harts/dimensions LDDR INS Selection harts/dimensions MINITUR ROLLR INS Selection harts IN PULLRS/IN RKIN TOOLS Selection harts P /17 oston ear

2 Roller s Description of Roller Parts Dimensions Principal dimensions of roller chain which identify the chain definitely are pitch, roller width, roller diameter and pin diameter. PIT is the linear distance from center to center of adjacent pins or rivets. WIDT is the distance between inside plates or length of roller. DIMTR is the actual outside diameter of roller (or pin). Types oston Roller chains can be furnished in two types RIVTD and DTL. RIVTD TYP Riveted type chains are recommended for high speed drives, as a greater rigidity of the pins and side plates is secured from this construction. Rivited type is considered standard on the smaller sizes up to and including 3/4 pitch and will be supplied unless Detachable type is specified. Detachable type chain is not recommended up to and including 5/8 pitch, but is available in cotter pin construction in 3/4 pitch. DTL (ottered) TYP Detachable type chains are recommended for slower speed drives, especially in the larger pitches where ease of assembly and disassembly becomes an important factor. Detachable type with cotter pins is considered standard on all sizes 1 pitch and above and will be supplied unless riveted type is specified. oth types are available. Links ONNTIN LINK (Spring lip) Standard for Nos. 25, 35, 40, 41, 50 and 60 single and multiple-width chains. ONNTIN LINK (otter Pin) Standard for Nos. 80, 100, 120, 140, and 160, 200 and 240 single and multiple-width chains. ROLLR LINK urnished as complete assemblies, roller links are standard for all chain sizes. The same roller links are used for single and multiple-width chains. ON PIT OST LINK (or standard service) or use whenever chain length contains an odd number of pitches. These links are standard for all chain sizes in single or multiple-widths. (Not available for 25 pitch.) TWO PIT OST LINK (or severe service) onsists of a roller link and an offset link riveted together. Two pitch offset assemblies should be specified for severe service. 250 oston ear P /17

3 Roller s Ordering Information STL SINL STRND STL TRIPL STRND VY SRIS Pitch & Standard Package Quantities atalog Item ode 10 PK /4-25* 100 RL RL RL PK /8-35* 100 RL RL RL PK / RL RL PK / RL RL RL / PK PK / RL RL PK 60 RIV / RL 60 RIV PK 60 DT PK 80 RIV RL 80 RIV PK 80 DT / PK 100 RIV DT / PK 120 RIV DT RIV / / /2 PK 140 DT / PK 160 RIV DT / PK 180 RIV DT / PK 200 RIV DT PK 240 RIV STL - DOUL STRND 1/4-25-2* 10 PK / PK / PK / PK / PK 60-2 RIV DT PK 80-2 RIV DT / PK RIV DT / PK RIV DT / /2 PK 140-2RIV / DT / PK RIV DT / PK DT / PK RIV DT PK DT Pitch & Standard Package Quantities atalog Item ode 1/4-25-3* 10 PK /8-35-3* 10 PK / PK / PK / PK RIV DT PK 80-3 RIV DT / PK RIV DT / PK RIV DT / /2 PK 140-3DT / PK DT / PK DT / PK DT PK DT STL - QUD STRND 3/8-35-4* 10 PK / PK / PK / PK 60-4 RIV DT PK RIV / PK DT / PK DT PK DT / PK DT STINLSS STL 1/4-25* 10 PK 25SS RL 25SS /8-35* 10 PK 35SS / PK 40SS / PK 50SS / PK 60SS PK 80SS RIV NIKL PLTD 1/4-25* 10 PK 25NP RL 25NP /8-35* 10 PK 35NP PK 35NP / PK 40NP RL 40NP PK 50NP / RL 50NP RL 50NP / PK 60NP RL 60NP PK 80NP * Non Roller eavy Series chain has thicker link plates to resist shock from pulsating loads. DT ottered Pitch & Standard Package Quantities atalog Item ode 3/ PK 60 RIV DT PK 80 RIV DT / PK 100 RIV DT / PK 120 RIV DT / /2 PK 140RIV / DT / PK 160 RIV DT / PK 200 DT P /17 oston ear

4 Roller s NSI Standard Double, Triple and Quadruple Widths Dimensions Pitch LL DIMNSIONS IN INS Pin verage vg. Roller T Diam. Ultimate Weight Diam. Strength Per t. Lbs. Lbs. T PIT PIT PIT PIT T T T SINL WIDT 25* 1/ * 3/ , / , S41 1/ , / , / , , / , / , / , , / , / , , DOUL WIDT 25-2* 1/ , * 3/ , / , / , / , , / , / , / , , / , / , , TRIPL WIDT 25-3* 1/ , * 3/ , / , / , / , , / , / , / , , / , / , , QUDRUPL WIDT 25-4* 1/ , * 3/ , / , / , / , , / , / , / , , / , / , , *Non-Roller 252 oston ear P /17

5 LL DIMNSIONS IN INS T Pitch Width Dia. Thick- Pin ness Dia. vg. Ultimate Strgth. (Lbs.) vg. Wgt. Per oot Lbs , / , / , , / , Roller s Transmission/onveyor/eavy Series Double Pitch Dimensions Transmission Series T PIT OVRSIZ ROLLRS STNDRD ROLLRS onveyor Series T T PIT PIT LL DIMNSIONS IN INS vg. weight per foot vg. (Lbs.) Ultimate Pitch Over- T Over- Thermo- Std. Strgth. Std. Roller Size (Lbs.) Roller size plastic Roller Roller Roller , / , / , , / , , , LL DIMNSIONS IN INS vg. vg. Ultimate Wgt. Pitch T Strgth. Per (Lbs.) oot Lbs. 60 3/ , , / , / , / , , / , / , eavy Series P /17 oston ear

6 ngineering Information onveyor Selection Single or Double Pitch, lat-top and ollow Pin In order to select a chain for a conveyor application, the Velocity and maximum Pull must be established. The total pull may be obtained if the Torque and Sprocket PD are known, or if the orsepower and Velocity can be determined. 2T Pull, W = D W = P V W = P nd If a pair of chains are used, the pull on each chain will be half of the total chain pull. aving determine the Pull, refer to Load Rating harts on Page 247 and select a chain with a capacity equal to or greater than the Pull Required. To alculate Length (L): where: or Single Pitch L = 2 + N or Double Pitch & lat-top N L = W = Pull, Lbs. T = Torque, In. Lbs. D = Sprocket PD, Inches P = orsepower V = Velocity, PM {n = Sprocket Speed, RPM L = Length, Pitches = enter Distance, Pitches N = of Teeth in One Sprocket* The computed value of L must be rounded out to a larger whole number of pitches (links) for each complete chain. ny whole number of links is satisfactory for inge-top but an even number should be selected for Single or Double Pitch or lat-top s. To obtain the center distance or chain length in inches, the value in pitches should be multiplied by the chain pitch. xample 1. Selecting a Double Pitch onveying. The power required to move material at 50 PM is 1 orsepower on a onveyor with a enter Distance of 10 ft. Step I: Determine Pull: 33,000 P x 1 W = V = 50 = 660 Lbs. Step II: Refer to onveyor Load Rating hart, page 165. Select a double pitch chain with a Working Load equal to or greater than 660 lbs. at 50 PM. Selection 2050 (1.25 Pitch) with 5/8 pitch sprockets 5025 (or larger). Step III: Determine Length in Pitches. onvert enter Distance (10 feet) to pitches. = 10 x 12 = 96 Pitches 1.25 Length (L) = 2 + N 2 25 Length (L) = 2 x 96 + = djust to next larger even whole number. Length (L) = 206 Pitches *ssuming same size Driver and Driven Sprockets. Single Pitch & Double Pitch or horizontal conveyor applications where the P or Torque data is not available, the approximate Pull can be calculated from the Weight to be moved (product and cha in) and the oefficient of riction (between sliding surfaces of chain and supporting ways). or Normal operation: Pull W = (M = 2m) f W = Pull Lbs. M = Product Weight, Lbs. per t. m = Weight, Lbs. per t. = onveyor Length (between enters), t. f = oefficient of riction (see Table). or trial purposes, let m = 1.0 for other conveyor chains. Note: The estimated weight of pins and/or attachments (per foot of chain) should be included in chain weight. Whenever the product becomes stalled on a moving conveyor, the chain pull is increased. The dded Pull depends on the Stalled Weight (of product) and the oefficient of riction (between surfaces of product and chain). or stalled product: dded Pull, w = Mlf w = dded Pull, Lbs. M = Product Weight, Lbs. per t. l = Length of Stalled Product, t. f = oefficient of riction (see Table). or Stalled condition: Total Pull = W = w, Lbs. If a pair is used, the pull on each chain will be half of the total chain pull. 254 oston ear P /17

7 xample 2. horizontal conveyor 25 t. long is to move a product weighing 200 Lbs. per t. at 20 PM. Two T2060 lat-top chains will be used, if possible, with the thermoplastic plates supported on metal ways without lubrication. Pull, W = (M + 2m) f M = 200 Lbs. per t. m = 1.41 x 2 = 2.82 (two chains) = 25 t. f = =.40 (for starting with load) W = ( ) 25 x.40 = 2056 Lbs. The maximum working load of T2060 chain at 20 PM is 1170 Lbs. (see table) and this will be adequate if the product cannot become stalled. Note: Whenever two strands of chain are used, the total chain weight will be double the single strand weight, (per foot). OIINT O RITION OR ONVYOR IN Plate igh Material Stainless arbon Density Impreg- Stainless Steel Steel Delrin Nylon nated Poly- Steel ethylene Wood Dry Water Soap & Water arbon Steel Dry Water Soap cetal Plastic Dry Water Soap & Water Nylon Dry Water Soap & Water Single Pitch Double Pitch Velocity of (PM) ngineering Information onveyor Selection (ontinued) *No. 35 is a Rollerless. lat Top onveyor IN LOD RTIN RT s 35* Maximum Working Load or Pull (Lbs.) Standard Pitch oston Sprockets To Operate With bove Pitch 3/8 1/2 5/8 3/ /4 1-1/2 2 or ollow Pin chains, the working load (chain pull) should be multiplied by 1.3 to obtain the proper value for use in selecting the chain pitch required. MXIMUM WORKIN LOD OR IN PULL (LS.) Velocity eet Per Minute Type T MXIMUM WORKIN LOD OR IN PULL (LS.) Velocity eet Per Minute Type T SINL PIT ROLLR IN WIT TTMNTS DOUL PIT ROLLR IN WIT TTMNTS To select the proper chain, the working load or chain pull and the chain speed in feet per minute must be known. Using this information find the proper chain in the chart. These load ratings are based on proper installation, lubrication and steady load conditions. The minimum permissible number of sprocket teeth is 15 for single pitch, and 24 for double pitch chain. or smoother operation, sprockets with greater numbers of teeth than the minimum are recommended. LURITION - To assure maximum chain life, carbon and stainless steel chains should be lubricated wherever possible. Soap lubrication is recommended. Several detergent and nonalkali fluid types are on the market. Water lubrication should be used when no other lubricant can be tolerated. Drip-type systems and wheel-type and sponge-type applicators are on the market. Delrin chain tends to be self-lubricating, although wear life can be extended with the use of a lubricant, such as soap and water. P /17 oston ear

8 ngineering Information onveyor Working Load t speeds of normal conveyor operation (less than 500 feet per minute), chains are selected on the basis of safe working load, rather than horsepower capacity. Working load or chain pull of conveyor series chains is calculated by multiplying the total combined weight of the chain, plus the conveyed material in any run, by the appropriate coefficient of friction. In general, the maximum working load for a conveyor chain will be higher than that deter mined for similar chains from a horsepower rating table. The higher load is permitted because there are usually fewer load cycles on a conveyor chain, compared to a power transmission drive. In order to minimize wear, permissible working loads of conveyor chains are reduced as speeds increase. See the working load table below. OIINT O RITION DOUL PIT ROLLR INS with Large Size with Standard Size Rollers and Rolling Rollers and Sliding riction riction *Static Rolling *Static Sliding Dry Lubricated Dry Lubricated Dry Lubricated Dry Lubricated -2040, , , , , , , *or chain speed of 3 feet per minute or less orizontal onveyor L (2W + M) P = N Inclined onveyor factor must be added to or subtracted from the chain load to compensate for raising or lowering the conveyed load on an inclined installation. This factor may be calculated by multiplying the weight of conveyed load by the vertical change in feet, and dividing y the horizontal run of the conveyor in feet. L (2W + M) cos φ LM sin φ P = N V φ = R tan L1 L L L 1 V ROMMNDD MXIMUM WORKIN LODS Pitch Speed, feet per minute in Inches Maximum Working Load, Lbs , , / , / , , / , , Vertical onveyor L (M + W) P = N L alculate the working load for horizontal, inclined, vertical and carousel conveyors, substituting the following values in the appropriate formulas: P = pull or working load S = Speed in feet per minute L = Length of conveyor in feet between sprocket centers T = Total chain length in feet V = Vertical rise in feet 1 = oefficient of friction, sliding 2 = oefficient of friction, rolling W = Weight of chain and attachments per foot in pounds M = Weight of conveyed product per foot in pounds N = of chain strands arousel onveyor (Plan View) for rescent Top s T (W + M) + (TM) P = N W + M) + (TM) Note: (TM) is the length of stalled product. 256 oston ear P /17

9 orsepower orsepower equals 33,000 foot-pounds per minute, or 550 foot-pounds per second. In terms of chain working load or pull (P) and speed: Sprocket Speed ngineering Information Roller ormulas 12 x RPM RPM = of Teeth x Pitch P x S P = 33,000 RPM of Driven Sprocket = Driver Teeth x Driver RPM Driven Teeth P = P x of Teeth x Pitch x RPM 396,000 RPM of Driver Sprocket = Driven Teeth x Driven RPM Driver Teeth P = P = Torque (lb.-in.) x RPM 63,025 Torque (lb.-in.) x RPM 5,252 entrifugal Pull or Tension Pull or tension caused by chain weight and velocity: Weight per oot x (PM) entrifugal Pull = 2 115,900 Ratio Teeth in Large Sprocket Ratio = or Teeth in Small Sprocket ast RPM Slow RPM Total Tension Total Tension = Working Load + entrifugal Pull Working Load When horsepower input is known, calculate for chain working load or pull (P): earing Pressure earing Pressure Working Load (pounds per square inch) = ushing Length x Pin Dia. P = P = P x 33,000 PM P x 396,000 of Teeth x Pitch x RPM Torque Torque = Sprocket Pitch Radius x Working Load P x 63,025 Torque (lb.-in.) = RPM Torque P = Sprocket Pitch Radius Torque (lb.-ft.) = P x 5,252 RPM Speed Speed (PM) = Pitch x of Teeth x RPM 12 actory of Safety Ultimate Strength S= Working Load P /17 oston ear

10 Notes 258 oston ear P /17

11 Roller ttachments Ordering Procedure ttachments may be ordered as separate links or assembled in chains. Double Pitch Roller s WN ORDRIN SPRT TTMNT LINKS, T OLLOWIN DT MUST IVN: 1. and ttachment. 2. onnecting Link or Roller Link. WN ORDR TTMNTS SSMLD* IN IN, T OLLOWIN INORMTION MUST SUPPLID: Double Pitch ttachments 1. and ttachment. 2. Spacing between ttachment enters (Pitches or Inches). This must be a multiple of the chain pitch. 3. If spacing is an even number of pitches, attachments will be assembled as pin links unless roller link style is specified. 4. If spacing is an odd number of pitches, assembly will normally be supplied with alternate pin and roller link attachments. or attachments to be on pin (or roller) links only, an offset link must be assembled in each interval. *Riveted assembly will be supplied unless detachable links are specified. NSI Standard Roller s Standard Roller ttachments P /17 oston ear

12 Roller s ollow Pin Single and Double Pitch oston ear ollow Pin is identical to NSI Roller in pitch, roller width and roller diameter. It is quality designed for long wear life in conveyor applications. The hollow pin feature provides unlimited conveyor design versatility. Stud, bushed design. ushing diameter is same as comparable roller chain. ORDR Y TLO NUMR OR ITM OD Pitch Standard atalog Item and Package ode Quantities SINL PIT 1/2 40P 40P /8 50P 20 Pkg. 50 P /4 60 P 60 P P 80 P DOUL PIT STNDRD ROLLRS P 2040P /4 2050P 20 Pkg P / P 2060 P P 2080 P DOUL PIT OVRSIZ ROLLRS P 2042P /4 2052P 20 Pkg P / P 2062 P P 2082 P T T PIT PIT DIMNSIONS IN INS verage verage Ultimate Weight Pitch T Strength Per oot (Lbs.) Single Double (Lbs.) Single Double 1/ /8 1-1/ /4 1-1/ oston ear P /17

13 lock lock * ORDR Y TLO NUMR OR ITM OD Standard Package atalog Item Quantities ode Pkg STINLSS STL lock available on Special Order. ontact actory. LL DIMNSIONS IN INS rom rom Over-ll Link verage Pin ead Pin ead Pin Width Plate Weight Pitch W to to Dia. No. /L /L Thickness Per oot, (Lbs.) Riv. Sp l T /4 7/32 17/64 7/16 31/ /16 9/32 5/16 9/16 19/ /8 5/16 11/32 5/8 21/ /2 3/8 13/32 3/4 25/ SPRIN LIP TYP SP L PIT RIVTD TYP RIV *Refer to Page 298 for lock Sprockets Leaf (able) oston Leaf s are designed for tension linkage applications such as counterweight chains for machine tools, elevator and oven doors, fork lift truck masts, spinning frames, i.e. applications to lift or pull where it is not necessary to engage a sprocket. Leaf chains normally run over sheaves and are attached to clevises at each end. ecause of the wide variation in clevis designs, leaf chains are furnished less the end pins. Not recommended for new applications. ORDR Y IN NUMR ND LNT IN T verage Weight Pitch Lacing T Ultimate Per oot Strength (Lbs.) (Lbs.) 1/2 2 x , L-423 1/2 3 x , L-434 1/2 4 x , L-446 5/8 2 x , L-523 5/8 3 x , L-534 5/8 3 x , L-546 3/4 2 x , L-623 3/4 3 x , L-634 3/4 4 x , L x , L x , L x , L-846 When ordering chain with odd number of pitches specify whether male or female end link required. P /17 oston ear

14 Ladder Steel Stainless Steel rass n effective, low-cost means of transmitting motion where load (torque) is not a critical factor. In addition to stock-listed sizes and materials, ladder chain can be furnished pre-assembled into endless lengths to customer specifications or pre-cut to desired lengths. Ladder chain may be made into endless loops by opening the two eyes of one end link with needle-nosed pliers to permit entry of the other end link and then closing the open eyes. Ladder chain can be furnished on a made-to-order basis made endless, with special plating. onsult the factory for prices. D ORDR Y TLO NUMR OR ITM OD* Standard package atalog Item Quantities ode 1 Miniature * 1 Stainless Steel RSS Pkg. 1 ITN STL SS RSS Pkg. 1 ITN STL SS RSS Pkg. 2 ITN STL SS RSS /2 50 Pkg. 2 ITN STL SS *To order Miniature Ladder, specify Item ode and of eet required. or Sprockets to run with this, see Miniature Roller Sprockets, Page 274. LL DIMNSIONS IN INS Links Weight Per D 100 t. (Lbs.) per oot (pprox.) Min. Max. Max. ±.0005 Min. Max. Steel rass / Load Data pprox. Yield Point pprox. P at 500 RPM (In Pounds) Steel Steel igh Stain- rass igh Stain- rass Untreated Tensile less Untreated Tensile less /6 1/3 1/6 1/ /4 1/2 3/16 1/ /3 3/4 1/4 1/4 2-1/ /2 1 7/16 1/3 Ratings for 1 will be furnished on request. 262 oston ear P /17

15 Miniature Roller s Stainless Steel Single Strand Riveted MTRIL: Stainless Steel Type 18-8 INIS: lear Passivated VR TNSIL LOD: 180 lbs. WIT:.035 lbs. per foot ORDR Y TLO NUMR OR ITM OD Item atalog No. of Links Length SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS NOT: Sizes not listed are available on request. ll lengths include and are supplied with connecting link 15SS /L PRID PR OOT Item atalog P Links Weight Material Pitch per per oot oot M-7-MS Nylatron S oz. ONNTIN LINK USIN LINK atalog Item ode atalog Item ode SS /L SS /L P /17 oston ear

16 Pullers The oston Puller was designed to make roller chain installation quick and easy. To use: (1) hook the two jaws into each end of the chain; (2) turn the screw until the two ends almost meet; (3) insert the connecting link and fasten. ORDR Y TLO NUMR OR ITM OD Jaw atalog Item Sizes Spread ode Nos T T reaking Tools These oston reaking Tools will disconnect any riveted roller chain manufactured to NSI specifications, up to and including No. 100 (1-1/4 pitch). Tool steel replaceable punch point, tempered for long life. ORDR Y TLO NUMR OR ITM OD atalog Item Replaceable Points Sizes ode atalog Item ode Nos T XT T XT oston ear P /17