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Tensioner Idlers / toothed / profile selectable / flanged pulley deselectable / single bearing, double bearing / material selectable / treatment selectable (AHTFW28-S5M250-10)

Tensioner Idlers / toothed / profile selectable / flanged pulley deselectable / single bearing, double bearing / material selectable / treatment selectable
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MISUMI

MISUMI

Product Details:

Manufacturer part number: AHTFW28-S5M250-10

Brand: MISUMI

Price: 71.74 €

Delivery time: 10 Days


Technical Data:

Belt Type: S5M

Belt Width: 25 mm

[T] Number of Teeth: 28

Material: [Aluminum] 2000 Series Aluminum Alloy (Duralumin)

Surface Treatment: Clear Anodize


  • Order quantities extended (D-JIT)

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  • Please note that the swaged flange options, NFC, RFC, and LFC, are not reflected in the CAD data.

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AHTFW28-S5M250-10

Back to the Category Toothed Pulleys/Timing Pulleys/Idler Pulleys

Technical Drawing - Toothed Pulleys/Timing Pulleys/Idler Pulleys

Flanged Idlers with Teeth - Center Bearing:Related Image
Open the technical drawing in the new window
 

Available dimensions and tolerances can be found under the tab More Information.
 

Basic Properties (e.g., material, hardness, coating, tolerance) - Toothed Pulleys/Timing Pulleys/Idler Pulleys

 
TypeMaterialSurface Treatment
Center BearingBoth Sides BearingMain BodyFlangeBearing
S5MS8MS14M
AHTFAHTFWAluminum Alloy 2000 seriesEN AW-7075 Equiv.-EN AW-5052 Equiv.SteelClear Anodize
KHTFKHTFWHard Clear Anodize *1
BHTFBHTFWEN 1.1191 Equiv.EN 1.1191 Equiv.Black Oxide
BHTFWNF*2
MHTFMHTFWEN 1.1191 Equiv.Electroless Nickel Plating
SHTF-EN 1.4301 Equiv.--EN 1.4301 Equiv.Stainless Steel-
*1 Hard Clear Anodize: Film Hardness 300HV ~
*2 Compatible with S14M Type only. On 2014 and later, S14M Type is to be delivered with flange not swaged on, but included.

Further specifications can be found under the tab More Information.
 

Composition of a Product Code - Toothed Pulleys/Timing Pulleys/Idler Pulleys

• Center Bearing
Part Number
     
Type Number of Teeth Applicable Belt
AHTF 30 S5M100

• Both Sides Bearing
Part Number-d
     
Type Number of
Teeth		-Applicable Belt
BHTFWNF 28-S14M400-30

Alterations - Toothed Pulleys/Timing Pulleys/Idler Pulleys

Flanged Idlers with Teeth - Center Bearing:Related Image

Here to the Overview of Options as PDF.

General Information - Toothed Pulleys/Timing Pulleys/Idler Pulleys

Toothed pulley - synchronous pulley - belt pulley - product assortment

 

Selection details of toothed pulleys/timing pulleys/idler pulleys

- Material: aluminum, steel, stainless steel (stainless steel), plastic

- Coatings: uncoated, burnished, anodized, nickel-plated

- Profile form: 1.5GT, 2GT, 3GT, 5GT, P2M, P3M, P5M, P8M, S2M, S3M, S5M, S8M, S14M, T2.5, T5, T10, AT5, AT10, 5M, 8M, 14M, 8YU, H, L, MXL, XL, PowerGrip GT3: MR2, MR3, MR5

- ISO tolerances: H7

- Belt width (mm): 4, 4.8, 6, 6.4, 7, 7.9, 9, 9.5, 10, 12, 12.7, 15, 18, 19.1, 20, 25, 25.4, 26, 28, 30, 31, 38,1, 40, 50, 50.8, 53, 60, 74, 76.2, 100

- Belt width (inches): 0.19, 0.25, 0.31, 0.37, 0.5, 0.75, 1, 1.5, 2

- Number of teeth: 10 to 72

 

Description/Basics

The toothed pulley for mechanical engineering is intended for the transmission of force and torque. Timing pulleys enable a gear ratio of speeds through belt pulleys of different sizes. Timing pulleys are more efficient, durable and significantly more maintenance-friendly compared to chain transmissions.

How much torque and load a timing pulley can transmit depends on the width of the belt. The width of the belt must be calculated. It is recommended to ensure the belt is correctly tensioned. MISUMI already offers the suitable idler pulley and return rollers with integrated ball bearings. For design and design help follow this link.

Different profile shapes of the toothed belts and belt pulleys are responsible for the transmission of power. Depending on the positioning accuracy, the applied torque and the conveying weight, MISUMI offers the fitting pulley. Toothed belt drives are generally used in the industry in three areas:
Positioning: Timing pulleys is often used in 3D printers. A toothed pulley with a semi-circular profile (e.g., GT) is often used for the required position accuracy of a 3D printers. The round shape offers the benefit of little play when the direction changes.
Drive: toothed pulleys are also used for high torque. In most cases, a timing pulley with a rounded trapezoidal profile (e.g., S8M) is used. These are particularly well suited for the transmission of high forces, which occur in drives of various applications in order to drive mechanical components.
Conveying: toothed pulleys can also be used for transporting loads. A straight trapezoidal profile is often used for this purpose (e.g., AT). This toothed pulley shape offers a large surface for loading and transmitting of loads.

Which toothed pulley or timing pulley is the right one for your application depends on the respective task of the toothed belt drive. Different toothed disc profiles have proven themselves for each type of application.

Various bore hole shapes and fastening variants are available for shaft mounting. These allow fastening via set screws, keyways and by means of Mecha locks. Fastening via a clamping sleeve has the further advantage that it allows adjusting the alignment continuously. The MISUMI product assortment has these ready-to-install.

Application Examples - Toothed Pulleys/Timing Pulleys/Idler Pulleys

Application example: idler pulley - idler pully toothed with chain tensioner - toothed pulley with chain tensioner

Application example: idler pulley
(1) Idler pulleys, (2) chain tensioner

Application example: return roller - return roller with cantilever pin - synchronous pulley with on-board disc - toothed pulley with on-board disc

Application example: deflection roller
S (1) Toothed pulleys with crimp disc, (2) nut, (3) washer, (4) cantilever shaft, (5) retaining ring

Application example: synchronous pulleys - toothed pulleys with toothed belts - toothed pulley with screw-on clamp

Application example: timing pulleys
(1) Flat head screw, (2) Timing pulley, (3) Timing belt, (4) Screw-on terminal

Application example: toothed belt drives - toothed pulleys with crimp disc - idler pulley with crimp disc - tensioning of the toothed belt

Application example: of toothed belt drives
(1) Toothed belt, (2) driven toothed pulley with crimp disc, (3) idler pulley with crimp disc, (4) driving toothed pulley with crimp disc

 

Industrial Applications

3D printer industry
Automotive industry
Pharmaceutical industry
Packaging industry

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Part Number
AHTFW28-S5M250-10
Part Number
Standard Unit Price
Minimum order quantityVolume Discount
Standard
Shipping Days
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RoHSBelt Type Belt Width
(mm) 		[T] Number of Teeth Material Surface Treatment [d] Diameter (Shaft Bore)
(mm)

71.74 €

1 Available 10 Days 10S5M2528[Aluminum] 2000 Series Aluminum Alloy (Duralumin)Clear Anodize10

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Back to the Category Toothed Pulleys/Timing Pulleys/Idler Pulleys

Technical Drawing - Toothed Pulleys/Timing Pulleys/Idler Pulleys

Flanged Idlers with Teeth - Center Bearing:Related Image
Open the technical drawing in the new window

Specification Tables - Toothed Pulleys/Timing Pulleys/Idler Pulleys

■S5M (Center Bearing)
Part NumberShaft Dia.
d		P.D.O.D.FEAWSBearing DimensionsUnit Price
TypeNumber of TeethApplicable BeltNo.DBAHTFKHTFBHTFMHTFSHTF
AHTF
KHTF
BHTF
MHTF
SHTF		16S5M100625.4624.50322011165606ZZx1176    -
18S5M100828.6527.69332211165698ZZx1196    -
20S5M100831.8330.87362411165698ZZx1196     
S5M15017225698ZZx2     
22S5M100835.0134.05402711164628ZZx1248    -
S5M15017223628ZZx2    -
24S5M1001038.2037.244530111646000ZZx1268    -
S5M150172236000ZZx2    -
25S5M1001039.7938.834530111646000ZZx1268     
S5M150172236000ZZx2     
26S5M1001041.3840.42483511163.56200ZZx1309    -
28S5M1001044.5643.60483511163.56200ZZx1309     
S5M15017226.5     
30S5M1001247.7546.795236111636201ZZx13210     
S5M15017226     
32S5M1001250.9349.975540111636201ZZx13210  ---
S5M15010172236000ZZx2268  ---
36S5M1001257.3056.346145111636201ZZx13210    -
40S5M1001263.6662.706750111636201ZZx13210  ---

■S5M (Both Sides Bearing)
Part NumberShaft Dia. dP.D.O.D.FEAWDhBearing DimensionsUnit Price
TypeNumber of TeethApplicable BeltNo.DBAHTFWKHTFWBHTFWMHTFW
AHTFW
KHTFW
BHTFW
MHTFW		16S5M150625.4624.503220172214.5606ZZx2176    
S5M2502732  --
18S5M150828.6527.693322172216.5698ZZx2196    
S5M2502732  --
20S5M150831.8330.873624172216.5698ZZx2196    
S5M2502732  --
22S5M150835.0134.054027172219.5608ZZx2227    
S5M2502732  --
24S5M150838.2037.244530172219.5608ZZx2227    
S5M2502732  --
25S5M100639.7938.834530111613696ZZx2155    
S5M1501722    
S5M250273214.5606ZZx2176  --
25S5M100839.7938.834530111616.5698ZZx2196    
S5M1501722    
S5M250273219.5608ZZx2227  --
26S5M1501041.3840.4248351722256200ZZx2309    
S5M2502732  --
28S5M1001044.5643.604835111619.56900ZZx2226    
S5M1501722    
S5M2502732256200ZZx2309  --
30S5M1501247.7546.7952361722256001ZZx2288    
S5M2502732276201ZZx23210  --
32S5M1501250.9349.9755401722256001ZZx2288  --
S5M2502732276201ZZx23210  --
36S5M1501557.3056.3461451722296002ZZx2329    
S5M2502732306202ZZx23511  --
40S5M1501563.6662.7067501722296002ZZx2329  --
S5M2502732306202ZZx23511  --

■S8M (Center Bearing)
Part NumberShaft Dia.
d		P.D.O.D.FEAWSBearing DimensionsUnit Price
TypeNumber of TeethApplicable BeltNo.DBAHTFKHTFBHTFMHTF
AHTF
KHTF
BHTF
MHTF		20S8M1501250.9349.565840172266201ZZx13210    
S8M2501528335.56202ZZx23511    
22S8M1501256.0254.656145172266201ZZx13210    
24S8M1501261.1259.746750172266201ZZx13210    
S8M25028336.56201ZZx2    
S8M30015333886202ZZx23511--  
S8M400444913.5    
25S8M1501563.6662.29705617225.56202ZZx13511    
26S8M1501566.2164.84745817225.56202ZZx13511    
28S8M1501571.3069.93806017225.56202ZZx13511    
30S8M1501576.3975.02876717225.56202ZZx13511    
S8M25028335.56202ZZx2    
S8M30020333856204ZZx24714--  
S8M400444910.5    
32S8M1502081.4980.128767172246204ZZx14714    
34S8M1502086.5885.219575172246204ZZx14714    
40S8M15025101.86100.491119017223.56205ZZx15215  --

■S8M (Both Sides Bearing)
Part NumberShaft Dia. dP.D.O.D.FEAWDhBearing DimensionsUnit Price
TypeNumber of TeethApplicable BeltNo.DBAHTFWKHTFWBHTFWMHTFW
AHTFW
KHTFW
BHTFW
MHTFW		22S8M2501256.0254.6561452833276201ZZx23210    
S8M3003338--  
S8M4004449    
24S8M2501261.1259.7467502833276201ZZx23210    
S8M3003338--  
S8M4004449    
25S8M2501263.6662.2970562833276201ZZx23210    
S8M3003338--  
S8M4004449    
26S8M1501266.2164.8474581722256001ZZx2288    
S8M2502833    
S8M3003338276201ZZx23210--  
S8M4004449    
28S8M2501571.3069.9380602833306202ZZx23511    
S8M3003338--  
S8M4004449    
30S8M1501576.3975.0287671722296002ZZx2329    
S8M2502833    
S8M3003338306202ZZx23511--  
S8M4004449    
30S8M2502076.3975.0287672833376004ZZx24212    
S8M3003338416204ZZx24714--  
S8M4004449    
32S8M2502081.4980.1287672833416204ZZx24714    
S8M3003338--  
S8M4004449    
34S8M2502086.5885.2195752833416204ZZx24714    
S8M3003338--  
S8M4004449    
40S8M25025101.86100.49111902833436005ZZx24712  --
S8M3003338476205ZZx25215  --
S8M4004449  --

■S14M (Both Sides Bearing) On 2014 and later, S14M Type is to be delivered with flange included (but not swaged on).
Part NumberShaft Dia.
d		P.D.O.D.FEAWDhBearing DimensionsUnit Price
TypeNumber of TeethApplicable BeltNo.DBBHTFWNF
BHTFWNF28S14M40030124.78121.981361014653576206ZZx26216 
S14M6006774 
S14M40040124.78121.98136101465373.56208ZZx28018 
S14M6006774 
For orders of 5 or more pieces of S14M, please request a quotation.

Alterations - Toothed Pulleys/Timing Pulleys/Idler Pulleys


Flanged Idlers with Teeth - Center Bearing:Related Image

Here to the Option Overview PDF
 

Basic information

Type Idlers with Teeth Timing Pulleys/Idlers Idlers

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Basic Attributes

  • Belt Type

    • S3M
    • S5M
    • S8M
    • S14M

    Clear

  • Belt Width(mm)

    • 10
    • 15
    • 25
    • 30
    • 40
    • 60

    Clear

  • [T] Number of Teeth

    • 16
    • 18
    • 20
    • 22
    • 24
    • 25
    • 26
    • 28
    • 30
    • 32
    • 34
    • 36
    • 40

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  • Material

    • EN 1.1191 Equiv.
    • Aluminum
      • 2000 Series Aluminum Alloy (Duralumin)
      • Aluminum Alloy 7000 series
    • EN 1.4301 Equiv.

    Clear

  • Surface Treatment

    • Not Provided
    • Black Oxide
    • Clear Anodize
    • Hard Clear Anodize
    • Electroless Nickel Plating

    Clear

  • [d] Diameter (Shaft Bore)(mm)

    • 6
    • 8
    • 10
    • 12
    • 15
    • 20
    • 25
    • 30
    • 40

    Clear

  • Type

    • AHTFW□□-S3M
    • AHTFW□□-S5M
    • AHTFW□□-S8M
    • AHTF□□S5M
    • AHTF□□S8M
    • BHTFWNF
    • BHTFW□□-S14M
    • BHTFW□□-S5M
    • BHTFW□□-S8M
    • BHTF□□S5M
    • BHTF□□S8M
    • KHTFW□□-S5M
    • KHTFW□□-S8M
    • KHTF□□S5M
    • KHTF□□S8M
    • MHTFW□□-S5M
    • MHTFW□□-S8M
    • MHTF□□S5M
    • MHTF□□S8M
    • SHTF□□S5M

    Clear

  • Filter by CAD data type

    • 2D
    • 3D

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    • 6 Days or Less
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    • 9 Days or Less
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Optional Attributes

Frequently Asked Questions (FAQ)

Question:

Do you have any belt pulleys without a hole?
Answer:

The MISUMI toothed pulleys always have a pilot bore. It is expanded depending on your configuration. It provides the advantage that the belt pulleys are already provided with a suitable shaft bore ready for installation. Therefore, it does not require time-consuming post-processing.
Question:

Do you have timing pulleys made of aluminum?
Answer:

The MISUMI online shop also offers timing pulleys or toothed pulleys in aluminum. Furthermore, we are also offering belt pulleys in steel and stainless steel. The return rollers and idler pulleys for the timing belts are also available in plastic.
Question:

Is a transmission with toothed belt pulleys possible?
Answer:

With toothed pulleys, a gear ratio is possible in a drive. The gear ratio is established based on the number of teeth on the belt pulleys. It should be ensured that the minimum number of teeth of the timing pulley disc is not undercut.

Question:

Which type of the toothed belt pulley can be clamped during assembly?
Answer:

There are a number of ways to install timing pulleys on a shaft. For applications that are not exposed to high torque, such as conveyors, it can be sufficient to fasten a timing pulley using clamping threaded pins. For this purpose, the shaft should have a flat surface.
For higher loads, a toothed pulley with a keyway can also be used.
A further variant is the fastening of a timing pulley via a conical chip sleeve. Depending on the type of Mecha lock, the timing pulley requires lateral internal threads, which can be added through additional options in the MISUMI online shop.
A timing pulley with a bore hole can also be combined with a Mech lock. MISUMI is offering this combination as a set.

Question:

Where do you position the tension roller?
Answer:

If an idler pulley should be utilised, it should be positioned on the sag side. This means that the idler pulley is attached to the side not subjected to pull.
Ideally, a toothed idler pulley is mounted on the inside of the toothed belt. The tensioning roller should always be larger than the smallest toothed idler pulley of the belt drive system.
If an idler pulley must tension the toothed belt from the outside, then a non-toothed (flat) idler pulley should be used. Cantilever pins, which MISUMI offers in various geometric versions, are suitable for fastening.

Question:

Which parallel key can be used for the toothed pulleys?
Answer:

The parallel key size is based on the shaft diameter. In this case, it is recommended using the MISUMI parallel keys, as they fit better when MISUMI toothed pulleys are used. See Overview available as PDF for keyway tolerances.
Question:

Is a timing pulley with a round profile better?
Answer:

Timing pulleys and round-profile timing belts are not recommended for every application. For example, the round profile shape is well suited for applications that require high positioning accuracy. Therefore, they are often used in 3D printers and scanners. Compared to other profile shapes, the round profile shape has a higher wear resistance. Another advantage of the round profile shape is the minimized play in the return (reverse play).
Question:

Which belt pulley is suitable for Gates toothed belts?
Answer:

The GT and EV timing pulleys are suitable for Gates’ toothed belts. However, these require you put attention to the slope (distance of the teeth) of the toothed belt. It must be checked whether these correspond to the selected toothed pulley.
Question:

Are the curtain discs necessary for the toothed pulleys?
Answer:

It is recommended using the smaller belt pulleys particularly with curb disc. The curb disk ensures that the toothed belt does not migrate down from the toothed belt pulley. Even with the smallest misalignment of a pulley, there may be a risk that the toothed belt will move and jump during operation.
Question:

How is the gearing of the toothed pulleys manufactured?
Answer:

The gear teeth of the MISUMI toothed belt pulley are mainly pushed. This ensures high manufacturing accuracy. As a result, the teeth fit precisely into the toothed belt profile of the timing belts and ensure optimal power and torque transmission.

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