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Timing Belts S8M

Timing Belts S8M
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Product Description

Timing Belts S8M
It is a round tooth profile rubber timing belt. This belt always uses for high torque transmission in an automation machine
[Features]
• Belt Shape: Closed End
• Belt Tooth Type: S8M (round tooth profile)
• Tooth Pitch: 8 mm.
• Belt Width: 15, 25, 30 and 40 mm.
• Circumference Length Shortest/Longest: 400 mm. and 4400 mm.
• Belt Operating Temperature Range: -30 to 90℃.
• Material:
Tooth rubber: Chloroprene
Core wire: Glass Fiber
Backing cloth layer: Nylon canvas
[Applications]
Suitable for use with a timing pulley in a transmission system in an automation machine



Product Overview

Usually, timing pulleys and timing belt are widely used to design mechanisms for transmitting rotational power generated by motors.
Driving and transmission are realized through the engagement between the teeth of timing pulleys and timing belts.

Dimensional Drawing

Dimensional drawing of MISUMI economic type belt

■Material/Specification Table
Type Material
C-HTBN① Rear rubberChloroprene
② Tooth rubber
③ Core wireGlass Fiber
④ Backing clothNylon canvas

Specifications Overview

TypesTooth pitchRaLrHhiPLDUnit weight g/m
(Width: 10mm)
S8M85.25.25.33.052.250.68652
Belt circumference length is core wire length.
C-HTBN belt operating temperature range: -30 to 90 ℃.
The model engraved on the back of the product is the manufacturer model.
MISUMI makes no commitment to this product brand.
For the transmission capacity and calculation and design method of economy series timing belt, please refer to the national standard (GB) design manual.

Specification Table

■ Specification Table
Economic type Toothed timing belt S2M S3M S5M S8M S14M type Ordering example

■C-HTBN
■Type S8M (Tooth pitch: 8mm)
Part NumberNumber of TeethBelt Circumference Length
(mm)
TypeBelt NumberBelt
Nominal Width
C-HTBN
(Chloroprene)
480 S8M150
(15mm)
250
(25mm)
300
(30mm)
400
(40mm)
60480
496 S8M62496
512 S8M64512
520 S8M65520
528 S8M66528
560 S8M70560
584 S8M73584
600 S8M75600
608 S8M76608
632 S8M79632
640 S8M80640
656 S8M82656
672 S8M84672
680 S8M85680
704 S8M88704
712 S8M89712
720 S8M90720
728 S8M91728
736 S8M92736
744 S8M93744
760 S8M95760
768 S8M96768
776 S8M97776
784 S8M98784
800 S8M100800
816 S8M102816
824 S8M103824
832 S8M104832
840 S8M105840
848 S8M106848
856 S8M107856
880 S8M110880
888 S8M111888
896 S8M112896
912 S8M114912
920 S8M115920
944 S8M118944
960 S8M120960
976 S8M122976
C-HTBN
(Chloroprene)
984 S8M150
(15mm)
250
(25mm)
300
(30mm)
400
(40mm)
123984
992 S8M124992
1000 S8M1251000
1008 S8M1261008
1016 S8M1271016
1024 S8M1281024
1032 S8M1291032
1040 S8M1301040
1048 S8M1311048
1056 S8M1321056
1080 S8M1351080
1096 S8M1371096
1104 S8M1381104
1112 S8M1391112
1120 S8M1401120
1128 S8M1411128
1136 S8M1421136
1152 S8M1441152
1160 S8M1451160
1168 S8M1461168
1184 S8M1481184
1192 S8M1491192
1200 S8M1501200
1216 S8M1521216
1224 S8M1531224
1240 S8M1551240
1248 S8M1561248
1256 S8M1571256
1264 S8M1581264
1280 S8M1601280
1296 S8M1621296
1304 S8M1631304
1312 S8M1641312
1320 S8M1651320
1344 S8M1681344
1352 S8M1691352
1360 S8M1701360
1376 S8M1721376
1392 S8M1741392
1400 S8M1751400
1424 S8M1781424
1440 S8M1801440
1480 S8M1851480
1504 S8M1881504
1512 S8M1891512
1520 S8M1901520
1544 S8M1931544
1552 S8M1941552
1560 S8M1951560
1568 S8M1961568
1592 S8M1991592
1600 S8M2001600
1624 S8M2031624
1672 S8M2091672
1680 S8M2101680
1696 S8M2121696
1728 S8M2161728
1760 S8M2201760
1800 S8M2251800
1824 S8M2281824
1832 S8M2291832
1896 S8M2371896
1904 S8M2381904
1920 S8M2401920
2000 S8M2502000
2048 S8M2562048
2056 S8M2572056
2080 S8M2602080
2104 S8M2632104
2160 S8M2702160
2240 S8M2802240
2272 S8M2842272
2288 S8M2862288
2304 S8M2882304
2320 S8M2902320
2400 S8M3002400
2432 S8M3042432
2464 S8M3082464
2496 S8M3122496
2528 S8M3162528
2560 S8M3202560
2600 S8M3252600
2624 S8M3282624
2736 S8M3422736
2800 S8M3502800
C-HTBN
(Chloroprene)
2848 S8M150
(15mm)
250
(25mm)
300
(30mm)
400
(40mm)
3562848
2872 S8M3592872
2936 S8M3672936
2944 S8M3682944
3000 S8M3753000
3048 S8M3813048
3088 S8M3863088
3120 S8M3903120
3200 S8M4003200
3280 S8M4103280
3400 S8M4253400
3600 S8M4503600
3720 S8M4653720
3800 S8M4753800
3880 S8M4853880
4000 S8M5004000
4200 S8M5254200
4400 S8M5504400
4416 S8M5524416
4496 S8M5624496
4720 S8M5904720
5080 S8M6355080
5280 S8M6605280
5496 S8M6875496

Product Feature

S type circular tooth profile economic type timing belt is made of rubber, featuring deviation prevention and wear resistance ■ S type circular tooth profile rubber timing belt (S2M/S3M/S5M/S8M/S14M)
Feature 1: Reasonable semi-circular arc tooth profile design can provide higher torque to adapt to high load transmission.
Feature 2: Reduce the noise generated by high-speed operation.
Feature 3: Tooth peak changes under force, ensuring a longer life than conventional circular tooth profile teeth.
Feature 4: Have certain conductivity
Feature 5: Operating Temperature Range: -30 to 90℃.
Features of P type domestic high-accuracy circular tooth profile timing belt ■ P type circular tooth profile rubber timing belt (P5M/P8M)
Feature 1: Reasonable semi-circular arc tooth profile design can provide higher torque to adapt to high load transmission.
Feature 2: Special concave tooth peak design, better reducing noise generated by high-speed operation.
Feature 3: Tooth peak changes under force, ensuring greater accuracy than conventional circular tooth profile teeth.
Feature 4: Have certain conductivity
Feature 5: Operating Temperature Range: -25 to 80℃.
Trapezoidal tooth profile timing belt is suitable for light load transmission and driving ■ Trapezoidal tooth profile rubber timing belt (MXL/XL/H/T5/T10)
Feature 1: Suitable for light load transmission, standard torque driving.
Feature 2: Tooth rubber uses chloroprene to protect core wire, providing excellent bending fatigue resistance, heat resistance, oil resistance
Feature 3: Ideal choice of economical and maintenance-free alternative to traditional transmission method.
Feature 4: Have certain conductivity
Feature 5: Operating Temperature Range: -30 to 90℃ (MXL/XL/H) , 0 to 80℃ (T5/T10)

Example of Use

Usage Method Example DrawingInstructions for use of timing wheel and timing belt
The TIMING BELT is installed on the motor and the rotating shaft to transmit the rotational force① Driving (The driven wheel is driven by the driving wheel for transmission)
Transmission belt, used for repeated motion with the object not rotating and high requirements on positioning accuracy② Transmission (Used for repeated motion with the object not rotating and high requirements on positioning accuracy)
Usage Method Example DrawingInstructions for use of timing wheel and timing belt
Plates are conveyed by two timing toothed belts③ Conveyance (Plates are conveyed by two timing toothed belts)
Usage method and example for conveyor belt lifting, repeated positioning motion④ Traction transmission (Workpieces are clamped and transmitted by the belt)

Usage Method

■ Installation method for timing belt transmission
Turn off the power supply, remove the protective cover, loosen the motor assembly bolts, move the motor so that the belt is loose enough. The belt can be removed without prying. Never try to pry the belt down.
Remove the old belt and check for abnormal wear. Excessive wear may mean that there are problems in the design or maintenance of the transmission device.
Choose the right belt to replace.
To clean the belt and pulley, wipe with a cloth dipped in a small amount of non-volatile liquid. Soaking in detergent or scrubbing the belt with detergent is not advisable. To remove grease, it is also undesirable to wipe with sandpaper or scratch with a sharp object. The belt must be kept dry before installation and use.
Check the pulley for abnormal wear or cracks. If the wear is excessive, the pulley must be replaced.
Check whether the pulley is linearly symmetrical. Linear symmetry of the pulley is essential for the operation of the timing belt, especially the timing belt transmission device.
Asymmetry of the pulley is shown as follows:
 Usage method Installation guide Complete selection Fit installation
Check the remaining transmission device components, such as bearings and bushings, for symmetry, durability, lubrication and other conditions.
Install a new belt on the pulley. Never pry or use too much force.
Tighten to narrow the center distance of the transmission device until the tension tester detects that the belt tension is appropriate. Turn the driving wheel several times with your hands. Re-test tension.
Tighten the assembly bolts of the motor and correct the torque. Since any change in the center distance of the transmission device during operation will result in poor belt performance, it is important to ensure that all transmission components have been tightened.
Start the device and observe the belt performance to see if there is abnormal vibration, and listen carefully if there is abnormal noise. It is best to turn off the machine and check the conditions of the bearing and motor. If it feels too hot to the touch, the belt may be too tight, the bearing may be asymmetrical, or the lubrication may be incorrect.

Precautions

① Do not bend the timing belt by force.
It is strictly forbidden to bend the belt, which easily causes breakage

Do not use in direct contact with water, solvent, oil, acid, alkali, UV, ozone, etc.
110302717070 Water110302717070 Acid110302717070 Alkali110302717070 Oil110302717070 UV
③ Please avoid using or keeping at extreme high or low temperatures beyond the operating temperature range, or in humid environments.
④ During installation and maintenance, be sure to cut off the power supply and confirm that the machine is completely stopped before proceeding.
⑤ When there may be impurities, be sure to set the guard.

Application Industries

Food Semiconductor Smartphone
110302717070 Lithium battery 110302717070 Semiconductor 110302717070 Smart phone
Automotive Electronic & Electrical Appliances Medical
110302717070 Automotive 110302717070 Electronic & electrical appliances 110302717070 Medical

Related Products

High Torque Timing Pulleys S2M Type Flat belt (Economy series) Toothed timing belt MXL XL L H type
TIMING PULLY High torque timing pulley MISUMI brand Pulley manufacturer S2M FLATBELT Flat belt Conveyor belt Transportation belt MISUMI brand Economic type Domestic timing belt Low price Short delivery time
Typical model: HTPA48S2M040-B-N10 Typical model: HBLT350-4.23 Typical model: C-TBN236MXL025


Part Number 

  • Incomplete part number.
    Please use left hand selections to complete a part number.
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Part Number
C-HTBN1000S8M-150
C-HTBN1000S8M-250
C-HTBN1000S8M-300
C-HTBN1000S8M-400
C-HTBN1008S8M-150
C-HTBN1008S8M-250
C-HTBN1008S8M-300
C-HTBN1008S8M-400
C-HTBN1016S8M-150
C-HTBN1016S8M-250
C-HTBN1016S8M-300
C-HTBN1016S8M-400
C-HTBN1024S8M-150
C-HTBN1024S8M-250
C-HTBN1024S8M-300
C-HTBN1024S8M-400
C-HTBN1032S8M-150
C-HTBN1032S8M-250
C-HTBN1032S8M-300
C-HTBN1032S8M-400
C-HTBN1040S8M-150
C-HTBN1040S8M-250
C-HTBN1040S8M-300
C-HTBN1040S8M-400
C-HTBN1048S8M-150
C-HTBN1048S8M-250
C-HTBN1048S8M-300
C-HTBN1048S8M-400
C-HTBN1056S8M-150
C-HTBN1056S8M-250
C-HTBN1056S8M-300
C-HTBN1056S8M-400
C-HTBN1072S8M-150
C-HTBN1072S8M-250
C-HTBN1072S8M-300
C-HTBN1072S8M-400
C-HTBN1080S8M-150
C-HTBN1080S8M-250
C-HTBN1080S8M-300
C-HTBN1080S8M-400
C-HTBN1088S8M-150
C-HTBN1088S8M-250
C-HTBN1088S8M-300
C-HTBN1088S8M-400
C-HTBN1096S8M-150
C-HTBN1096S8M-250
C-HTBN1096S8M-300
C-HTBN1096S8M-400
C-HTBN1104S8M-150
C-HTBN1104S8M-250
C-HTBN1104S8M-300
C-HTBN1104S8M-400
C-HTBN1112S8M-150
C-HTBN1112S8M-250
C-HTBN1112S8M-300
C-HTBN1112S8M-400
C-HTBN1120S8M-150
C-HTBN1120S8M-250
C-HTBN1120S8M-300
C-HTBN1120S8M-400
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(mm)
Circumference Length
(mm)
Number of Teeth

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Basic Information

Belt Shape Closed End Belt Tooth Surface Standard (Single Sided) Belt Material Rubber Belt
Belt Type S8M Belt Shape Type Round Tooth Profile Super Torque Transmission Torque High Torque Transmission

Frequently asked question (FAQ)

Question: Why is the order model of the timing belt inconsistent with the actual belt label and engraving?
Answer: Order model is MISUMI product model, the label on the belt or printed model on the belt surface is the belt manufacturer model, which varies with manufacturer, but there will be no influence on the product itself.
Question: The timing belt has been broken after use for a very short period of time. Is there a problem with the quality of the belt?
Answer: The timing belt is a standard product, and the same batch of products have very few individual quality problems, please refer to Main causes of premature breakage and corresponding countermeasures to troubleshoot the equipment in use.
Question: Can alteration be made to the timing belt?
Answer: Alteration cannot be made to the circumference of the timing belt, and partial alteration can be made to the width.
Question: What kind of belt is better to use under conditions that require high cleanliness?
Answer: The use of urethane belts is recommended, which has significantly improved dust drop, compared to the rubber belt.
Question: What are the two main types of timing belts according to their functions? What is the role?
Answer: Timing belts are mainly divided into transmission type and driving type. For transmission type, the load can be placed on the timing belt surface for transmission. For driving type, no load is carried, and only the role of transmitting torque is played, which is similar to the role of chain.
Question: How to judge or measure whether the belt tension meets the installation requirements?
Answer: It is recommended that the customer purchase the tension meter by himself and make a judgment according to the calculation formula of the initial design.
Question: Which tooth type of the timing belt has the smallest clearance? What will it affect?
Answer: The arc tooth type has minimum clearance, which can improve such indicators as positioning accuracy and rigidity.

Check other FAQ (4 items) Hide