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Standard belt S2M (100S2M152G)

Standard belt S2M 100S2M152G

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Standard timing belts made of rubber or urethane with a round tooth profile for smooth engagement.
[Features]
· A product with a wide variety of tooth profiles and sizes, offering excellent general-purpose usability and availability.
· The belt is flexible and can be used with small pulley diameters.
· Smooth meshing enables quiet operation.
· Can be used with low shaft load.
[Applications]
· Ideal for office equipment, vending machines, electronic application devices, measuring instruments, and home appliances.

(i)Caution

  • Since the G type has been unified with the GB type, if the part number suffix is G, it will be the GB type.

PDF

Japanese Only

Part Number

Configured Part Number is shown.

100S2M152G

INDEX

Drawing

Standard Belt Size

Belt Tooth Profile (Super Torque S2M)

Belt Tooth Profile (Super Torque S2M)

Standard Belt Size

Standard Belt Size

Product Specification

Super Torque S2M Specifications

Super Torque (G, U) Timing Belt

Super Torque (G, U) Timing Belt

Standard timing belts made of rubber or urethane with a round tooth profile for smooth engagement.
A product with a wide variety of tooth profiles and sizes, offering excellent general-purpose usability and availability.

Relationship between belt width and pulley width

Belt typeBelt widthPulley tooth width (mm)
NominalWidth (mm)With flangeNo flange
S2M40459
606711
100101115

Belt width tolerance

Belt width tolerance for Super Torque

Belt width (mm)Belt
Nominal Width
Belt Length [Upper: Nominal Length, Lower: Length (mm)]
36 to 330
91.44 to 838.20
331 to 660
838.21 to 1676.40
661 to 1700
1676.41 to 4318.00
3.4 to 11.4025,031
037
+0.3
-0.6
+0.3
-0.6
+0.3
-0.6
11.5 to 38.1050,075
100,150
+/- 0.6+/- 0.6+/- 0.6
38.2 to 50.8200+/- 0.6+/- 1.0+1.0
-1.3
50.9 to 76.2300+1.3
-1.6
±1.6+1.6
-2.0

Belt width tolerance for trapezoidal tooth profile

Belt width (mm)Belt length (mm)
351 or lessOver 351
up to 840
Over 840
up to 1680
Over 1680
3 or less+0.3
-0.4
+0.3
-0.4
+0.3
-0.4
+0.3
-0.4
More than 3
and up to 10
+0.3
-0.6
+0.3
-0.6
+0.3
-0.6
+0.3
-0.6
More than 10
40 or less
+/- 0.6+/- 0.6+/- 0.6+/- 0.6
Over 40
50 or less
+/- 0.6+/- 0.6+/- 1.0+1.0
-1.3
Over 50
Up to 75
+1.0
-1.3
+1.0
-1.3
+/- 1.3+1.3
-1.6
Over 75
and 100 or less
+/- 1.3+/- 1.3+1.3
-1.6
±1.6
Over 100+1.3
-1.6
+/- 2.0+2.0
-2.3
+2.0
-2.6
 

Timing belt structure

G type / GB type

G type / GB type
*GB (bareback) type: Minimal rubber powder scattering enables clean operation.

Features and compatible conditions based on structure

Features and compatible conditions based on structure

  • Widely used for industrial applications.
  • Can also be used for high loads.
  • The standard belt can be used within a temperature range of -30°C to +80°C. If heat resistance up to 100°C is required, please use a heat resistant belt.
  • The standard belt has conductivity. (Electrical resistance: 6 MΩ or less)
  • To prevent belt misalignment, the tension member alternates between S twist and Z twist.

Timing Belt System Table

Timing Belt System Table

Timing Belt System Table

 

S2M Standard Transmission Capacity Table

Per 4.0 mm belt width (Unit: W)
S2M Standard Transmission Capacity Table
 

S2M Allowable Torque Table

Per 4.0 mm belt width (Unit: N·cm)
S2M Allowable Torque Table

Specifications Table

Belt nominal lengthNumber of teethBelt pitch
circumference (mm)
Manufacturability
GBU
S2M 663366Yes-
S2M 723672Yes-
S2M 743774Yes-
S2M 763876Yes-
S2M 783978Yes-
S2M 804080YesYes
S2M 844284Yes-
S2M 864386Yes-
S2M 884488Yes-
S2M 904590YesYes
S2M 984998YesYes
S2M 10050100YesYes
S2M 10251102Yes-
S2M 10452104Yes-
S2M 10653106Yes-
S2M 10854108Yes-
S2M 11055110Yes-
S2M 11256112YesYes
S2M 11457114YesYes
S2M 11658116Yes-
S2M 11859118YesYes
S2M 12060120YesYes
S2M 12261122YesYes
S2M 12462124Yes-
S2M 12663126YesYes
S2M 12864128Yes-
S2M 13065130YesYes
S2M 13266132Yes-
S2M 13467134Yes-
S2M 13668136Yes-
S2M 13869138YesYes
S2M 14070140YesYes
S2M 14271142Yes-
S2M 14472144YesYes
S2M 14673146Yes-
S2M 14874148Yes-
S2M 15075150Yes-
S2M 15276152YesYes
S2M 15678156Yes-
S2M 15879158YesYes
S2M 16080160YesYes
S2M 16482164YesYes
S2M 16683166YesYes
S2M 16884168Yes-
S2M 17085170Yes-
S2M 17286172YesYes
S2M 17487174Yes-
S2M 17688176Yes-
S2M 17889178Yes-
S2M 18090180Yes-
Belt nominal lengthNumber of teethBelt pitch
circumference (mm)
Manufacturability
GBU
S2M 18291182Yes-
S2M 18492184Yes-
S2M 18693186Yes-
S2M 18894188Yes-
S2M 19095190YesYes
S2M 19296192Yes-
S2M 19497194YesYes
S2M 19698196Yes-
S2M 19899198Yes-
S2M 200100200YesYes
S2M 202101202Yes-
S2M 204102204Yes-
S2M 206103206Yes-
S2M 208104208Yes-
S2M 210105210YesYes
S2M 212106212YesYes
S2M 214107214Yes-
S2M 216108216Yes-
S2M 218109218-Yes
S2M 220110220YesYes
S2M 224112224YesYes
S2M 226113226Yes-
S2M 230115230YesYes
S2M 232116232Yes-
S2M 234117234Yes-
S2M 236118236YesYes
S2M 238119238Yes-
S2M 240120240YesYes
S2M 242121242-Yes
S2M 244122244YesYes
S2M 246123246YesYes
S2M 248124248Yes-
S2M 250125250YesYes
S2M 252126252Yes-
S2M 254127254Yes-
S2M 256128256Yes-
S2M 258129258Yes-
S2M 260130260YesYes
S2M 262131262Yes-
S2M 264132264Yes-
S2M 266133266Yes-
S2M 268134268Yes-
S2M 270135270Yes-
S2M 272136272Yes-
S2M 276138276Yes-
S2M 278139278Yes-
S2M 280140280YesYes
S2M 284142284Yes-
S2M 286143286Yes-
S2M 288144288Yes-
Belt nominal lengthNumber of teethBelt pitch
circumference (mm)
Manufacturability
GBU
S2M 290145290YesYes
S2M 292146292Yes-
S2M 296148296Yes-
S2M 300150300Yes-
S2M 302151302Yes-
S2M 304152304Yes-
S2M 306153306Yes-
S2M 308154308Yes-
S2M 310155310Yes-
S2M 312156312Yes-
S2M 316158316Yes-
S2M 318159318Yes-
S2M 320160320YesYes
S2M 322161322Yes-
S2M 324162324Yes-
S2M 326163326Yes-
S2M 328164328Yes-
S2M 330165330YesYes
S2M 334167334Yes-
S2M 338169338Yes-
S2M 340170340Yes-
S2M 342171342Yes-
S2M 344172344Yes-
S2M 350175350Yes-
S2M 354177354Yes-
S2M 360180360YesYes
S2M 364182364Yes-
S2M 370185370YesYes
S2M 372186372Yes-
S2M 374187374Yes-
S2M 376188376Yes-
S2M 380190380Yes-
S2M 386193386Yes-
S2M 390195390Yes-
S2M 396198396YesYes
S2M 400200400Yes-
S2M 402201402Yes-
S2M 408204408Yes-
S2M 410205410Yes-
S2M 420210420Yes-
S2M 426213426Yes-
S2M 430215430Yes-
S2M 434217434Yes-
S2M 436218436YesYes
S2M 438219438Yes-
S2M 440220440Yes-
S2M 442221442Yes-
S2M 444222444Yes-
S2M 448224448YesYes
S2M 452226452Yes-
S2M 456228456Yes-
S2M 460230460Yes-
S2M 464232464Yes-
S2M 468234468Yes-
S2M 474237474Yes-
S2M 476238476Yes-
S2M 480240480Yes-
S2M 486243486YesYes
S2M 488244488-Yes
S2M 494247494Yes-
S2M 500250500Yes-
S2M 520260520YesYes
S2M 524262524Yes-
Belt nominal lengthNumber of teethBelt pitch
circumference (mm)
Manufacturability
GBU
S2M 530265530Yes-
S2M 550275550Yes-
S2M 560280560YesYes
S2M 572286572YesYes
S2M 580290580-Yes
S2M 586293586Yes-
S2M 594297594Yes-
S2M 600300600Yes-
S2M 630315630YesYes
S2M 638319638Yes-
S2M 648324648Yes-
S2M 656328656Yes-
S2M 660330660Yes-
S2M 672336672Yes-
S2M 676338676Yes-
S2M 694347694Yes-
S2M 710355710Yes-
S2M 726363726Yes-
S2M 740370740Yes-
S2M 752376752Yes-
S2M 772386772Yes-
S2M 778389778Yes-
S2M 796398796Yes-
S2M 800400800Yes-
S2M 810405810Yes-
S2M 822411822Yes-
S2M 826413826Yes-
S2M 828414828Yes-
S2M 848424848Yes-
S2M 856428856Yes-
S2M 862431862Yes-
S2M 866433866Yes-
S2M 880440880Yes-
S2M 882441882Yes-
S2M 898449898Yes-
S2M 900450900Yes-
S2M 910455910Yes-
S2M 930465930Yes-
S2M 944472944Yes-
S2M 950475950Yes-
S2M 976488976Yes-
S2M 984492984YesYes
S2M 10165081,016Yes-
S2M 10325161,032-Yes
S2M 10625311,062Yes-
S2M 10645321,064Yes-
S2M 10665331,066Yes-
S2M 11005501,100Yes-
S2M 11365681,136Yes-
S2M 11405701,140Yes-
S2M 11485741,148Yes-
S2M 11965981,196YesYes
S2M 12246121,224Yes-
S2M 12506251,250YesYes
S2M 12746371,274Yes-
S2M 12906451,290Yes-
S2M 13306651,330Yes-
S2M 14207101,420Yes-
S2M 15167581,516Yes-
S2M 15247621,524Yes-
S2M 18789391,878Yes-
S2M 21301,0652,130Yes-
 

Usage Example

Installation of the belt

1. Turn off the power to the machine

2. Check that they are on the same plane

2. Check that they are on the same plane

Adjust the X dimension so that it is as close to 0 (zero) as possible. Place a straight edge against the side of the pulley and make sure that the pair of pulleys are on the same plane.

3. Reduce the distance between shafts

3. Reduce the distance between shafts

Loosen the bolts on the slide base or similar parts, and reduce the distance between shafts until the belt can be installed without force.

 4. Apply tension to the belt

4. Apply tension to the belt

Align the teeth of the belt with the grooves of the pulley, and slowly pull the slide base or similar parts to apply tension to the belt. Because the belt is slightly shorter when there is no tension, the belt and pulley may not be fully engaged on pulleys with a large number of teeth. Slowly pull to ensure there are no areas where the belt and pulley are not properly meshed.

5. Pull the belt to the specified tension

5. Pull the belt to the specified tension

Tension the belt so that the deflection load when pressing the center of the belt span (the part of the belt not in contact with the pulley) by a specified amount (16/1000 of the span length) matches the value calculated by the above formula.

6. Alignment Readjustment

6. Alignment Readjustment

With the belt tensioned, use a straight edge again to check the alignment. If there is any misalignment, remove the belt and readjust.
Especially in cases with a bearing on only one side, the shaft may deflect during operation, causing the belt to shift toward the side opposite the bearing. In this case, please adjust the parallelism of the shaft in advance by the amount of deflection.

7. Secure the slide base and other components firmly to prevent any movement.

 

8. Engagement check

  • Slowly rotate the pulley and make sure that the belt and pulley are properly engaged. If the belt does not mesh properly, please check the following.
  • Excessive belt tension or looseness
  • Abnormal pulley outer diameter: The outer diameter has become smaller due to wear, etc.
  • The shape of the pulley does not match the shape of the belt.

Tension pulley mounting method

1. Usage conditions for the tension pulley

Use the tension pulley only in cases where it is functionally unavoidable as described below.

 

· When used with fixed shaft spacing
If tension adjustment cannot be made by changing the distance between shafts, add a tension pulley to adjust the tension.

· When the gear ratio is large and you want to increase the number of engaged teeth on the small pulley
If the gear ratio is large and the number of engaged teeth on the small pulley becomes too low, add a tension pulley to increase the number of engaged teeth.

2. Tension pulley mounting

Adjust the alignment of the tension pulley accurately. Also, attach it to the slack side during operation.

inner tension pulley

· Inner tension pulley
When using a tension pulley from the inside, use a pulley diameter equal to or greater than the minimum pulley diameter specified in the catalog.

  • For an inside tension pulley, position it on the slack side close to the larger pulley.
  • For the tension pulley, use a toothed pulley.
outer tension pulley

· Outside tension pulley
When using a tension pulley on the outside, use a pulley diameter at least 20% larger than the minimum pulley diameter specified in the catalog.

  • If a tension pulley is used on the outside, position it on the slack side close to the smaller pulley.
  • Bending angle of the belt should be at least 140°.
  • Please use a flat pulley without a crowned surface for the tension pulley.
  • Avoid using an outside idler on urethane belts.

Belt Replacement Timing for Timing Belts

Tooth rubber / tooth tip / tooth fabric (reinforcing fabric) / tooth root surface / tooth surface / core wire

Tooth rubber / tooth tip / tooth fabric (reinforcing fabric) / tooth root surface / tooth surface / core wire

When the tooth fabric is worn and the rubber or core wire is exposed / when cracks appear in the back rubber of the belt due to increased hardness, etc. / when crazing occurs at the tooth root of the belt / when the side of the belt is damaged due to wear / tooth breakage / back wear / core wire breakage

 

Cautions and Prohibitions

Items to Check During Test Operation

Please perform a test run of the belt for several minutes and check the following items. If the following phenomena occur, please take appropriate measures.
Never bring your hands or body close to the pulley or belt while operating. Also, always make sure the belt has come to a complete stop and turn off the power before performing inspections or maintenance.

  1. 1.Check that the belt is not riding up onto the pulley flange.
    (Countermeasure) Adjust the alignment of the pulley.
  2. 2.Check that the belt is not vibrating excessively.
    (Countermeasure) Change the initial belt tension (installation tension), or install an additional pulley (flat pulley) to gently press the back of the belt.
  3. 3.Check if belt jumping (a phenomenon where the belt tooth skips over the pulley tooth) is occurring.
    (Countermeasure) Increase the initial belt tension (mounting tension). If jumping still occurs even when the belt is tightened, it is possible that a force exceeding the allowable transmission is being applied to the belt, so please review the design again.
  4. 4.Check that the belt tension does not decrease abnormally.
    (Countermeasure) Make sure that the slide base and similar components are not loose. It is also possible that the belt was not properly engaged during mounting, so please re-tension the belt.

Guide for daily maintenance

For daily maintenance of the belt, please pay attention to the following items.

  1. 1.Check that the belt mounting tension has not dropped significantly.
    The belt mounting tension may decrease slightly after several hours of operation as the pulley settles in. After installation, rotate the belt about 10 times to allow it to settle, then tension it to the specified value. No retensioning is required afterward. If the timing belt is retensioned, it may not mesh properly and the belt lifespan may be shortened.
  2. 2.Check that there are no cracks on the back of the belt.
  3. 3.Check that there are no cracks at the tooth root of the belt.
  4. 4.Check that the fabric at the tooth root area between the teeth of the belt is not worn, exposing the rubber layer or core wire.
  5. 5.Check that there is no wear or damage on the end face of the belt caused by rubbing against the flange.
  6. 6.Check that the belt is not significantly meandering during operation.
    The belt may move within the pulley during forward or reverse rotating operation, but this is not abnormal.
  7. 7.Check that there is no water or oil adhering to the belt.
  8. 8.Check that the foundation is not loose.
  9. 9.Check that there is no rust on the tooth surface or flange of the pulley.
  10. 10.Is the noise level higher than usual?

Please check all of the above during inspection.

Part Number
100S2M152G
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipRoHSNominal Width W (mm)
(mm)
Belt Material Core Wire Material Belt Length
(mm)
Circumference length
(mm)
The Number of Teeth

MYR 27.97

1 Piece(s)Available 4 Day(s) or more 1010Rubber BeltGlass Fiber15215276

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Basic Information

Belt Series S2M Belt Shape Closed End Belt Tooth Surface Standard (One Side)
Belt Shape Type Round tooth profile super torque Transmission Torque High Torque

Please check the type/dimensions/specifications of the part 100S2M152G in the Standard belt S2M series.

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