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  • Notice of End of Sales for Economy Series Pneumatic Equipment Category. More information.

Toothed Timing Belts P8M (C-PTBN720P8M-250)

Part Number

Configured Part Number is shown.

C-PTBN720P8M-250


Product Overview
Usually, timing pulleys and timing belts 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.
Local production in China delivers MISUMI quality at low price.
Dimensional Drawing
Dimensional Drawing of MISUMI Economy Series Toothed Timing Belt P5M P8M
Specifications Overview
■Material/Specification Table
Type Material
C-PTBNBodyChloroprene
Toothed FaceNylon canvas
Core WireGlass Fiber
 
TypeTooth PitchLHhPLDrUnit weight g/m
(Width: 10mm)
P8M85.25.52.90.6860.856
Operating Temperature -25 to 80℃
Belt circumference length is core wire length
MISUMI makes no commitment to this product brand
The model number on the back of the product is the supplier model.
■Specification Table
Ordering Example of MISUMI Economy Series Toothed Timing Belt P5M P8M
 
TypeTooth PitchLHhPLDrUnit weight g/m
(Width: 10mm)
P8M85.25.52.90.6860.856

■ Type P8M (Tooth Pitch: 8mm)
Part NumberNumber of TeethBelt Circumference Length (mm)
TypeBelt NumberNominal Width
C-PTBN376 P8M150
(15mm)

250
(25mm)
47376
384 P8M48384
480 P8M60480
560 P8M70560
720 P8M90720
760 P8M95760
800 P8M100800
840 P8M105840
856 P8M107856
880 P8M110880
920 P8M115920
960 P8M120960
1000 P8M1251000
1040 P8M1301040
1056 P8M1321056
1064 P8M1331064
1080 P8M1351080
1096 P8M1371096
1120 P8M1401120
1160 P8M1451160
1200 P8M1501200
1760 P8M2201760
2000 P8M2502000
2400 P8M3002400
2552 P8M3192552
2600 P8M3252600
3200 P8M4003200
4400 P8M5504400
Product Features
S type circular tooth profile economy series 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/L/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 force①Driving (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 accuracy②Transmission (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 belts③Conveyance (Plates are conveyed by two timing toothed belts)
Usage method and example for conveyor belt lifting, repeated positioning motion④Traction 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
①Do not bend the belt by force.
It is strictly forbidden to bend the belt, which easily causes breakage

②Do 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 Smart Phones
110302717070 Lithium battery 110302717070 Semiconductor 110302717070 Smart phone
Automotive Electronic & Electrical Medical
110302717070 Automotive 110302717070 Electronic & electrical appliances 110302717070 Medical
Related Products
High Torque Timing Pulleys S2M Type Flat Belt Timing Belts MXL
TIMING PULLY High torque timing pulley MISUMI brand Pulley manufacturer S2M FLATBELT Flat belt Conveyor belt Transportation belt MISUMI brand Economy series Domestic timing belt Low price Short delivery time
Representative model: HTPA48S2M040-B-N10 Representative model: HBLT350-4.23 Representative model: C-TBN236MXL025
Part Number
C-PTBN720P8M-250
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipRoHSBelt Width (mm)
(mm)

SGD 8.80

1 Piece(s)Available 9 Day(s) 1025

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Basic Information

Belt Type P8M Belt Shape Closed End Belt Material Rubber Belt
Belt Tooth Surface Standard (Single Sided) Core Wire Material Glass Core Wire Belt Shape Type Circular Tooth Profile PX Belt
Transmission Torque High Torque Transmission

Please check the type/dimensions/specifications of the part C-PTBN720P8M-250 in the Toothed Timing Belts P8M series.

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

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(mm)

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