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Standard Belt S2M (60S2M848G)

Standard Belt S2M (60S2M848G)
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Caution

  • Some of the items are scheduled to be discontinued as of end of March in 2023. The manufacturer keep the items produced but they are not available with Misumi.
    There are not the replacement items and the plan to resumption of sale. Please check the quotation and order screen for details.


Product Description

Standard rubber and urethane timing belt with a smooth meshing round tooth shape.
[Features]
·A product with a wide variety of tooth profiles and size variations, with excellent versatility and availability.
·The belt is supple and can be used with a small pulley diameter.
·Smooth engagement and quiet operation are possible.
·Can be used with low axial load.
[Application]
·Ideal for office equipment, vending machines, electronic application equipment, measuring instruments, home appliances, etc.

INDEX

Drawing

Standard belt size

Belt tooth pattern (Super Torque S2M)

Belt tooth pattern (Super Torque S2M)

Standard belt size

Standard belt size

Product Specifications

Super Torque S2M Specifications

Super Torque (G / U) Timing Belt

Super Torque (G / U) Timing Belt

Standard rubber and urethane timing belt with a smooth meshing round tooth shape.
A product with a wide variety of tooth profiles and size variations, with excellent versatility and availability.

Relationship between belt width and pulley width

Belt-shapedBelt widthPulley tooth width (mm)
NominalWidth (mm)With flangeNo Flange
S2M40459
606711
100101115

Belt width tolerance

Super Torque belt width tolerance

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

Trapezoidal belt width tolerance

Belt width (mm)Belt length (mm)
351 or lessOver 351 and 840 or lessOver 840 and 1,680 or lessMore than 1,680
3 or less+0.3
-0.4
+0.3
-0.4
+0.3
-0.4
+0.3
-0.4
Over 3 and 10 or less+0.3
-0.6
+0.3
-0.6
+0.3
-0.6
+0.3
-0.6
Over 10 and 40 or less±0.6±0.6±0.6±0.6
Over 40 and 50 or less±0.6±0.6±1.0+1.0
-1.3
Over 50 and 75 or less+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: Clean operation is possible with little scattering of rubber powder.

Structural features and compatible conditions

Structural features and compatible conditions

  • Widely usable for general industry.
  • Can also be used for high loads.
  • Standard belts can be used in the range of -30 to +80°C. If you want heat resistance up to 100°C, please use a heat-resistant belt.
  • The standard belt is conductive. (Electrical resistance value: 6 MΩ or less)
  • In order to prevent the belt from shifting, the tension body uses S-twist and Z-twist alternately.

Timing belt system table

Timing belt system table

Timing belt system table

 

S2M standard transmission capacity table

Belt width per 4.0 mm (Unit: W)
S2M standard transmission capacity table
 

S2M allowable torque table

Belt width per 4.0 mm (Unit: N cm)
S2M allowable torque table

Standard table

Belt nominal lengthNumber of teethBelt pitch
Circumference length (mm)
Whether or not of production
GBU
S2M 663366
S2M 723672
S2M 743774
S2M 763876
S2M 783978
S2M 804080
S2M 844284
S2M 864386
S2M 884488
S2M 904590
S2M 984998
S2M 10050100
S2M 10251102
S2M 10452104
S2M 10653106
S2M 10854108
S2M 11055110
S2M 11256112
S2M 11457114
S2M 11658116
S2M 11859118
S2M 12060120
S2M 12261122
S2M 12462124
S2M 12663126
S2M 12864128
S2M 13065130
S2M 13266132
S2M 13467134
S2M 13668136
S2M 13869138
S2M 14070140
S2M 14271142
S2M 14472144
S2M 14673146
S2M 14874148
S2M 15075150
S2M 15276152
S2M 15678156
S2M 15879158
S2M 16080160
S2M 16482164
S2M 16683166
S2M 16884168
S2M 17085170
S2M 17286172
S2M 17487174
S2M 17688176
S2M 17889178
S2M 18090180
Belt nominal lengthNumber of teethBelt pitch
Circumference length (mm)
Whether or not of production
GBU
S2M 18291182
S2M 18492184
S2M 18693186
S2M 18894188
S2M 19095190
S2M 19296192
S2M 19497194
S2M 19698196
S2M 19899198
S2M 200100200
S2M 202101202
S2M 204102204
S2M 206103206
S2M 208104208
S2M 210105210
S2M 212106212
S2M 214107214
S2M 216108216
S2M 218109218
S2M 220110220
S2M 224112224
S2M 226113226
S2M 230115230
S2M 232116232
S2M 234117234
S2M 236118236
S2M 238119238
S2M 240120240
S2M 242121242
S2M 244122244
S2M 246123246
S2M 248124248
S2M 250125250
S2M 252126252
S2M 254127254
S2M 256128256
S2M 258129258
S2M 260130260
S2M 262131262
S2M 264132264
S2M 266133266
S2M 268134268
S2M 270135270
S2M 272136272
S2M 276138276
S2M 278139278
S2M 280140280
S2M 284142284
S2M 286143286
S2M 288144288
Belt nominal lengthNumber of teethBelt pitch
Circumference length (mm)
Whether or not of production
GBU
S2M 290145290
S2M 292146292
S2M 296148296
S2M 300150300
S2M 302151302
S2M 304152304
S2M 306153306
S2M 308154308
S2M 310155310
S2M 312156312
S2M 316158316
S2M 318159318
S2M 320160320
S2M 322161322
S2M 324162324
S2M 326163326
S2M 328164328
S2M 330165330
S2M 334167334
S2M 338169338
S2M 340170340
S2M 342171342
S2M 344172344
S2M 350175350
S2M 354177354
S2M 360180360
S2M 364182364
S2M 370185370
S2M 372186372
S2M 374187374
S2M 376188376
S2M 380190380
S2M 386193386
S2M 390195390
S2M 396198396
S2M 400200400
S2M 402201402
S2M 408204408
S2M 410205410
S2M 420210420
S2M 426213426
S2M 430215430
S2M 434217434
S2M 436218436
S2M 438219438
S2M 440220440
S2M 442221442
S2M 444222444
S2M 448224448
S2M 452226452
S2M 456228456
S2M 460230460
S2M 464232464
S2M 468234468
S2M 474237474
S2M 476238476
S2M 480240480
S2M 486243486
S2M 488244488
S2M 494247494
S2M 500250500
S2M 520260520
S2M 524262524
Belt nominal lengthNumber of teethBelt pitch
Circumference length (mm)
Whether or not of production
GBU
S2M 530265530
S2M 550275550
S2M 560280560
S2M 572286572
S2M 580290580
S2M 586293586
S2M 594297594
S2M 600300600
S2M 630315630
S2M 638319638
S2M 648324648
S2M 656328656
S2M 660330660
S2M 672336672
S2M 676338676
S2M 694347694
S2M 710355710
S2M 726363726
S2M 740370740
S2M 752376752
S2M 772386772
S2M 778389778
S2M 796398796
S2M 800400800
S2M 810405810
S2M 822411822
S2M 826413826
S2M 828414828
S2M 848424848
S2M 856428856
S2M 862431862
S2M 866433866
S2M 880440880
S2M 882441882
S2M 898449898
S2M 900450900
S2M 910455910
S2M 930465930
S2M 944472944
S2M 950475950
S2M 976488976
S2M 984492984
S2M 10165081,016
S2M 10325161,032
S2M 10625311,062
S2M 10645321,064
S2M 10665331,066
S2M 11005501,100
S2M 11365681,136
S2M 11405701,140
S2M 11485741,148
S2M 11965981,196
S2M 12246121,224
S2M 12506251,250
S2M 12746371,274
S2M 12906451,290
S2M 13306651,330
S2M 14207101,420
S2M 15167581,516
S2M 15247621,524
S2M 18789391,878
S2M 21301,0652,130
 

Example of use

About belt installation

1. Turn off the machine's power supply

2. Confirmation in the same plane

2. Confirmation in the same plane

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

3. Reduce the distance between axes

3. Reduce the distance between axes

Loosen the bolts such as the slide base and shorten the distance between the shafts until the belt is comfortably applied.

4. Give tension to the belt

4. Tense the belt

Align the teeth of the belt with the tooth groove of pulley and slowly pull the slide base, etc., to give tension to the belt. Since the belt is a little short when there is no tension, the belt and pulley may not be completely engaged with a pulley with a large number of teeth, so pull slowly that there is no defective part of the belt and pulley.

5. Pull the belt to the specified tension

5. Pull the belt to the specified tension

Tighten the belt so that the deflection load when the center of the belt span (the part where the belt is not applied to the pulley) is pushed in by a certain amount (span length 16/1,000) is the value calculated from the above formula.

6. Alignment readjustment

6. Alignment readjustment

With the belt stretched, please check the alignment again using the straight edge, and if there is any deviation, remove the belt and readjust.
Especially in the case of one-sided bearings, the shaft may bend during operation and the belt may bend to the opposite side of the bearing. In this case, please correct the stage parallelism of the axis by the amount of deflection in advance.

7. Firmly fix the slide base, etc., so that it does not move

 

8. Check the engagement

  • Slowly rotate the pulley to make sure the belt and pulley are firmly engaged. If the belt does not fit tightly, please check the following.
  • The belt is too tight or too loose
  • Abnormal outer diameter of pulley: The outer diameter has become smaller due to wear, etc.
  • The shape of the pulley and the shape of the belt do not match

How to install the tension pulley

1. Conditions for using the tension pulley

Please use the tension pulley only when it is unavoidable due to the following functions.

 

·When using with fixed shafts
If the tension cannot be adjusted by the distance between the shafts, please add a tension pulley to adjust the tension.

·When the number of meshing teeth of the small pulley becomes small, such as when the gear ratio is large and you want to increase the number of meshing teeth of the small pulley, or when the gear ratio is large, add a tension pulley to increase the number of meshing teeth.

2. Installation of tension pulley

Please adjust the alignment of the tension pulley accurately. Also, please attach it to the loose side while driving.

Inner tension pulley

·Inner tension pulley
When using the tension pulley from the inside, please use a pulley diameter larger than the minimum pulley diameter in the catalog.

  • The tension pulley from the inside should be on the loose side and close to the large pulley.
  • Please use a toothed pulley for the tension pulley.
Outer tension pulley

·Outer tension pulley
When using the tension pulley from the outside, please use a pulley diameter that is 20% or more larger than the minimum pulley diameter in the catalog.

  • When using the tension pulley from the outside, please make sure it is on the loose side and close to the small pulley.
  • The bending angle of the belt should be 140° or more.
  • Please use a flat pulley without a crown for the tension pulley.
  • Please avoid using the outer idler for urethane belts.

Timing belt replacement time

Tooth rubber / tooth tip / tooth cloth (reinforcing cloth) / tooth bottom / tooth surface / core line

Tooth rubber / tooth tip / tooth cloth (reinforcing cloth) / tooth bottom / tooth surface / core line

When the tooth cloth is worn and the rubber and core wire are exposed / When the back rubber of the belt is cracked due to increased hardness, etc. / When the classic is generated at the tooth root of the belt / When the belt side surface is damaged due to wear / tooth lacking / back wearing / core wire cutting

 

Cautions/prohibitions

Items to check during test run

Please test run the belt for a few minutes and check the following items. If any of the following phenomena occur, please take countermeasures.
Please never bring your hands or body close to the pulley or belt while driving. Also, please be sure to check that the belt is completely stopped and then turn off the power supply before performing inspections, etc.

  1. 1. Is the belt riding on the flange of the pulley? (Countermeasure) Adjust the alignment of the pulley.
  2. 2. Is the belt resonating? (Countermeasure) Change the initial tension (mounting tension) of the belt, or install a new pulley (flat pulley) so that the belt is lightly pressed from the back of the belt.
  3. 3. Does the belt have jumping (a phenomenon in which the teeth of the belt jump over the teeth of the pulley)? (Countermeasure) Increase the initial tension (mounting tension) of the belt. If jumping occurs even if the belt is stretched strongly, the belt may be under more force than the allowable transmission, so reconsider the design.
  4. 4. Does the belt tension drop abnormally? (Countermeasure) Check if the slide base, etc., is loose. Also, it is possible that the belt did not mesh properly when it was attached, so please re-tighten the belt.

About daily inspection

Please pay attention to the following items for daily inspection of the belt.

  1. 1. Is the belt mounting tension extremely low? The belt mounting tension will drop slightly due to the familiarity of the pulley within a few hours after operation. After mounting, please rotate the belt about 10 times, let it fit in, and then stretch it with the specified tension. There is no need to re-tension after that. Re-tensioning the timing belt may result in poor engagement and shorten the belt lifespan.
  2. 2. Are there any cracks on the back of the belt?
  3. 3. Are there any cracks in the teeth of the belt?
  4. 4. Is the cloth on the bottom of the belt between the teeth worn to expose the rubber layer or core wire?
  5. 5. Is there a wear or damage in the end face of the belt due to rubbing against the flange?
  6. 6. Is the belt meandering significantly when traveling? In the case of forward rotational or reverse rotational operation, the belt may move in the pulley, but this is not a malfunction.
  7. 7. Is there water or oil on the belt?
  8. 8. Is the foundation loose?
  9. 9. Is there rust on the tooth surface or flange of the pulley?
  10. 10. Isn't it noisier than usual?

As mentioned above, please check at the time of inspection.

Part Number
60S2M848G
Part NumberPriceMinimum Order Qty.Volume DiscountDays to ShipRoHSBelt Material Core Wire Material Nominal Width W (mm)
(mm)
Belt Length
(mm)
Circumference length
(mm)
The Number of Teeth

₹ 549.51

1 Piece(s) 10 Day(s) or more 10Rubber BeltGlass Fiber6848-424

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  1. 1

Basic Information

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