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Timing Pulleys High Torque/S8M

Timing Pulleys High Torque/S8M

MISUMI

MiSUMi Economy

MISUMI

Part Number

Configured Part Number is shown.

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.
Dimensional Drawing
Dimensional Drawing
Specifications Overview
Part Number Material Surface Treatment
Belt Width 15mmBelt Width 25mmBelt Width 30mmBelt Width 40mmPulleyFlange
A: 17 W: 22 L: 37(42)A: 28 W: 33 L: 48(53)A: 33 W: 38 L: 53(58)A: 44 W: 49 L: 64(69)
E-HTPA□□S8M150E-HTPA□□S8M250E-HTPA□□S8M300E-HTPA□□S8M400Aluminum AlloyAluminum AlloyClear Anodized
E-HTPB□□S8M150E-HTPA□□S8M250E-HTPA□□S8M300E-HTPA□□S8M400Black Anodized
E-HTPK□□S8M150E-HTPK□□S8M250E-HTPK□□S8M300E-HTPK□□S8M400Hard Clear Anodize＊
E-HTPM□□S8M150E-HTPM□□S8M250E-HTPM□□S8M300E-HTPM□□S8M400Equivalent to S45CSPCCBlack Oxide Coating
E-HTPP□□S8M150E-HTPP□□S8M250E-HTPP□□S8M300E-HTPP□□S8M400Electroless Nickel Plating
*Film hardness of hard clear anodize is 300HV~.
The flange is riveted, and set screws are included for shaft bore specs. P, N or C.
Values in () for dimension L apply to the number of teeth 44～72.
If there are requirements for rust prevention, give priority to products made of aluminum alloy, stainless steel SUS304 and with surface treatment of electroless nickel plating.
     For anti-rust performance and maintenance of metal materials and surface treatment, clickhere.
Specification Table
Part NumberPulley
Shape		Shaft Bore Specs.Shaft Bore Specs. (1mm increments)P.D.O.D.DFE

H

Round Hole

P

Round Hole+Threaded Hole

N

Keyway Hole + Threaded Hole

TypeNumber of TeethType & Nominal Width
 		dH7
Shape AShape BShape AShape BShape AShape B
(Aluminum Alloy)
E-HTPA
E-HTPB
E-HTPK

(S45C equivalent)
E-HTPM
E-HTPP		18S8M150
＊A ：17
＊W ：22
＊L ：37
(L：42)

S8M250
＊A ：28
＊W ：33
＊L ：48
(L：53)

S8M300
＊A ：33
＊W ：38
＊L ：53
(L：58)

S8M400
＊A ：44
＊W ：49
＊L ：64
(L：69)		A


B		H


P


N		12～3212~2812～2612~2212~2612~2045.8444.46325236
1912～3612~3112~2812~2512~2812~2048.3847.01355540
2012～3612~3212~3012～2612~3012~2250.9349.563658
2112～4112~3612～3212~3012~3212~2453.4852.10406145
2212～4112~3712~3412~3012~3412~2556.0254.6541
2412～4612~4212~4012~3412~4012~2861.1259.74466750
2512～5212～4412~4012~3612~4012～2863.6662.29487056
2614～5414~4714~4514~3914～4514~3166.2164.84517458
2814～5614～5114~4814～4314~4814~3571.3069.93558060
3014～6314~5614～5014~4614~5014~3876.3975.02608767
3214～6314~5914~5514~4914～5514~4581.4980.1263
3416~6716~6616~6016~5616～5516~4886.5885.21709575
3616~7216～7116~6516~6116～5516～5091.6790.30759980
3816～7616~7616~6516~6516～5516~5096.7795.398010484
4020~8520~8020～7020～6520～5520～55101.86100.498511190
4420～8520~8020～7020～7020～5520～55112.05110.6790119100
4820～8520～8520～7020～7020～5520～55122.23120.86100127105
5020～8520～8520～7020～7020～5520～55127.32125.95135115
6020～8520～8520～7020～7020～5520～55152.79151.42160140
7220～8520～8520～7020～7020～5520～55183.35181.97100190170
 Z-d≥2 for Shaft Bore Specs. V or F.
Q(R)-d≥2 for Shaft Bore Specs. Y.
Values in () for dimension L apply to the number of teeth 44～72.
Shaft Bore Dia. 51~55 are not available for Shaft Bore Specs. N.
Shaft Bore Dia. 13, 14, 17 and 21~55 are not available for Shaft Bore Specs. C.
Product Features
Feature 1: S specification timing pulleys, suitable for high torque transmission and conveyance design.
Feature 2: S specification timing pulleys provide great transmission accuracy and efficiency, making them suitable for high-precision transmission and conveyance designs.
Feature 3: S specification timing pulleys can be designed for use in mechanisms with larger shaft spacing, applicable to most mechanisms and equipment.
Feature 1: MISUMI timing pulleys satisfy industrial standards, enabling for a reliable purchase and simple equipment maintenance.
Feature 2: MISUMI timing pulleys are available in various materials and suitable for a wide range of design environments.
Feature 3: MISUMI timing pulleys are made with meticulous attention to detail, allowing customers to make purchases with more confidence.
 
Features of MISUMI Timing Pulleys S8M timing pulley①Well processed teeth→High processing accuracy

②Threaded hole deburred→Longer service life of timing belt

③Evenly press-fitted retainer→Firm retainer, not easy to fall off

④Beautiful tooth shape→Precisely engaged belt, with high concentricity
Usage Method
Usage Method Example DrawingUsage Method of Timing Wheel and Timing Belt
MISUMI Timing Pulley Driving Example①Driving
The driven wheel is driven by the driving wheel for transmission
MISUMI Timing Pulley Linear Driving Example②Linear driving
Reciprocating motion is carried out through the free-end toothed timing belt.
Usage Method Example DrawingUsage Method of Timing Wheel and Timing Belt
MISUMI Timing Pulley Conveyance Example③Conveyance
Plates are conveyed by two toothed timing belts
MISUMI Timing Pulley Traction Transmission Example④Traction transmission
Workpieces are clamped and transmitted by the belt
 
Shape S timing pulleys, suitable for MISUMI standard and economy series S specification belts.
Precautions
①For Shaft Bore Specs. P (round hole+threaded hole) or N, the attached set screws are shipped in the same package (may drop in the packaging bag).
②There is no threaded hole for Shaft Bore Specs. H (round hole).
③There may be no surface treatment in the shaft bore.
④If there are requirements on the fit clearance between timing pulley and toothed timing belt, please select MISUMI non-backlash timing pulleys. For details, refer to “Non-Backlash Timing Pulleys S8M” on MISUMI official website.
⑤For the N keyway hole, the position relation between keyway and tooth is not fixed.
Example of Use
Example drawing of a workpiece reversal transfer mechanism designed using MISUMI timing pulley
Example Name:
        Workpiece Reversal Transfer Mechanism
Purpose:
        Rotates the workpiece on the conveyor belt by 90 degrees and transfers it to the next process, using the transmission power of the timing pulley and the timing belt.
        At this time, the clamping mechanism rotates 180 degrees and does not change the direction of the workpiece relative to the conveying direction at the same time during transfer.
Purpose of Timing Pulley:
        The transmission of the timing pulley and the timing belt changes the placement direction of the workpiece while transferring the workpiece. (Applicable to S specification and GT specification timing pulleys)

For detailed information, clickhere.
Application Industries
Semiconductor Automotive Smart Phones
MISUMI Timing Pulleys S8M are applicable to the semiconductor industry MISUMI Timing Pulleys S8M are applicable to the automotive industry MISUMI Timing Pulleys S3M are applicable to the smart phone industry
Medical Electronic & Electrical Robotics
MISUMI Timing Pulleys S8M are applicable to the medical industry MISUMI Timing Pulleys S8M are applicable to the electronics and electrical appliances industry MISUMI Timing Pulleys S8M are applicable to the robotics industry
Related Products
Idler High Torque Toothed Timing Belts S8M Toothed Timing Belts
High Torque Timing Belts S5M, S8M and S14M Idler Drawing idler High Torque Timing Belts S2M, S3M, S5M and S8M Drawing timing belt Economy series Toothed Timing Belt Drawing
Representative model: AHTF20S8M150 Representative model: HTBN480S8M-150 Representative model: C-HTBN656S8M-150
Related Documents
Technical Data of Toothed Timing Belts and Timing Pulleys
①For the data on the selection of timing pulleys and toothed timing belts, tensioning force, etc. (drive), please click here and check.
②For the data on the selection of timing pulleys and toothed timing belts, tensioning force, etc. (transmission & conveyance), please click here and check.
③For the main causes and countermeasures for the damage, breakage, abnormal noise of timing toothed belts, please click here and check.
④For the reference data on the replacement time of toothed timing belts, please click here and check.
⑤For the data on dimensional tolerance of timing pulleys, please click here and check.

Part Number 

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Part Number
E-HTPM18S8M150-B-H12.7
E-HTPM18S8M150-B-H[12-28/1]
E-HTPM18S8M150-B-N[12-20/1]
E-HTPM18S8M150-B-P12.7
E-HTPM18S8M150-B-P[12-22/1]
E-HTPM18S8M250-A-H12.7
E-HTPM18S8M250-A-H[12-32/1]
E-HTPM18S8M250-A-N[12-26/1]
E-HTPM18S8M250-A-P12.7
E-HTPM18S8M250-A-P[12-26/1]
E-HTPM18S8M250-B-H12.7
E-HTPM18S8M250-B-H[12-28/1]
E-HTPM18S8M250-B-N[12-20/1]
E-HTPM18S8M250-B-P12.7
E-HTPM18S8M250-B-P[12-22/1]
E-HTPM18S8M300-A-H12.7
E-HTPM18S8M300-A-H[12-32/1]
E-HTPM18S8M300-A-N[12-26/1]
E-HTPM18S8M300-A-P12.7
E-HTPM18S8M300-A-P[12-26/1]
E-HTPM18S8M300-B-H12.7
E-HTPM18S8M300-B-H[12-28/1]
E-HTPM18S8M300-B-N[12-20/1]
E-HTPM18S8M300-B-P12.7
E-HTPM18S8M300-B-P[12-22/1]
E-HTPM18S8M400-A-H12.7
E-HTPM18S8M400-A-H[12-32/1]
E-HTPM18S8M400-A-N[12-26/1]
E-HTPM18S8M400-A-P12.7
E-HTPM18S8M400-A-P[12-26/1]
E-HTPM18S8M400-B-H12.7
E-HTPM18S8M400-B-H[12-28/1]
E-HTPM18S8M400-B-N[12-20/1]
E-HTPM18S8M400-B-P12.7
E-HTPM18S8M400-B-P[12-22/1]
E-HTPM19S8M150-A-H12.7
E-HTPM19S8M150-A-H[12-36/1]
E-HTPM19S8M150-A-N[12-28/1]
E-HTPM19S8M150-A-P12.7
E-HTPM19S8M150-A-P[12-28/1]
E-HTPM19S8M150-B-H12.7
E-HTPM19S8M150-B-H[12-31/1]
E-HTPM19S8M150-B-N[12-20/1]
E-HTPM19S8M150-B-P12.7
E-HTPM19S8M150-B-P[12-25/1]
E-HTPM19S8M250-A-H12.7
E-HTPM19S8M250-A-H[12-36/1]
E-HTPM19S8M250-A-N[12-28/1]
E-HTPM19S8M250-A-P12.7
E-HTPM19S8M250-A-P[12-28/1]
E-HTPM19S8M250-B-H12.7
E-HTPM19S8M250-B-H[12-31/1]
E-HTPM19S8M250-B-N[12-20/1]
E-HTPM19S8M250-B-P12.7
E-HTPM19S8M250-B-P[12-25/1]
E-HTPM19S8M300-A-H12.7
E-HTPM19S8M300-A-H[12-36/1]
E-HTPM19S8M300-A-N[12-28/1]
E-HTPM19S8M300-A-P12.7
E-HTPM19S8M300-A-P[12-28/1]
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipRoHSBelt Width Used
(mm) 		Pulley Shape Material Surface Treatment Number of Teeth Shaft Bore Specs. (Round Hole+Threaded Hole) [P]
(mm) 		Shaft Bore Specs. (Round Hole) [H]
(mm) 		Shaft Bore Specs. (New JIS Keyway Hole+Threaded Hole) [N]
(mm)

-

1 Piece(s) 7 Day(s) 1015Shape B[Steel] S45C EquivalentBlack Oxide Coating18-12.7-

-

1 Piece(s) 7 Day(s) 1015Shape B[Steel] S45C EquivalentBlack Oxide Coating18-12 ～ 28-

-

1 Piece(s) 7 Day(s) 1015Shape B[Steel] S45C EquivalentBlack Oxide Coating18--12 ～ 20

-

1 Piece(s) 7 Day(s) 1015Shape B[Steel] S45C EquivalentBlack Oxide Coating1812.7--

-

1 Piece(s) 7 Day(s) 1015Shape B[Steel] S45C EquivalentBlack Oxide Coating1812 ～ 22--

-

1 Piece(s) 7 Day(s) 1025Shape A[Steel] S45C EquivalentBlack Oxide Coating18-12.7-

-

1 Piece(s) 7 Day(s) 1025Shape A[Steel] S45C EquivalentBlack Oxide Coating18-12 ～ 32-

-

1 Piece(s) 7 Day(s) 1025Shape A[Steel] S45C EquivalentBlack Oxide Coating18--12 ～ 26

-

1 Piece(s) 7 Day(s) 1025Shape A[Steel] S45C EquivalentBlack Oxide Coating1812.7--

-

1 Piece(s) 7 Day(s) 1025Shape A[Steel] S45C EquivalentBlack Oxide Coating1812 ～ 26--

-

1 Piece(s) 7 Day(s) 1025Shape B[Steel] S45C EquivalentBlack Oxide Coating18-12.7-

-

1 Piece(s) 7 Day(s) 1025Shape B[Steel] S45C EquivalentBlack Oxide Coating18-12 ～ 28-

-

1 Piece(s) 7 Day(s) 1025Shape B[Steel] S45C EquivalentBlack Oxide Coating18--12 ～ 20

-

1 Piece(s) 7 Day(s) 1025Shape B[Steel] S45C EquivalentBlack Oxide Coating1812.7--

-

1 Piece(s) 7 Day(s) 1025Shape B[Steel] S45C EquivalentBlack Oxide Coating1812 ～ 22--

-

1 Piece(s) 7 Day(s) 1030Shape A[Steel] S45C EquivalentBlack Oxide Coating18-12.7-

-

1 Piece(s) 7 Day(s) 1030Shape A[Steel] S45C EquivalentBlack Oxide Coating18-12 ～ 32-

-

1 Piece(s) 7 Day(s) 1030Shape A[Steel] S45C EquivalentBlack Oxide Coating18--12 ～ 26

-

1 Piece(s) 7 Day(s) 1030Shape A[Steel] S45C EquivalentBlack Oxide Coating1812.7--

-

1 Piece(s) 7 Day(s) 1030Shape A[Steel] S45C EquivalentBlack Oxide Coating1812 ～ 26--

-

1 Piece(s) 7 Day(s) 1030Shape B[Steel] S45C EquivalentBlack Oxide Coating18-12.7-

-

1 Piece(s) 7 Day(s) 1030Shape B[Steel] S45C EquivalentBlack Oxide Coating18-12 ～ 28-

-

1 Piece(s) 7 Day(s) 1030Shape B[Steel] S45C EquivalentBlack Oxide Coating18--12 ～ 20

-

1 Piece(s) 7 Day(s) 1030Shape B[Steel] S45C EquivalentBlack Oxide Coating1812.7--

-

1 Piece(s) 7 Day(s) 1030Shape B[Steel] S45C EquivalentBlack Oxide Coating1812 ～ 22--

-

1 Piece(s) 7 Day(s) 1040Shape A[Steel] S45C EquivalentBlack Oxide Coating18-12.7-

-

1 Piece(s) 7 Day(s) 1040Shape A[Steel] S45C EquivalentBlack Oxide Coating18-12 ～ 32-

-

1 Piece(s) 7 Day(s) 1040Shape A[Steel] S45C EquivalentBlack Oxide Coating18--12 ～ 26

-

1 Piece(s) 7 Day(s) 1040Shape A[Steel] S45C EquivalentBlack Oxide Coating1812.7--

-

1 Piece(s) 7 Day(s) 1040Shape A[Steel] S45C EquivalentBlack Oxide Coating1812 ～ 26--

-

1 Piece(s) 7 Day(s) 1040Shape B[Steel] S45C EquivalentBlack Oxide Coating18-12.7-

-

1 Piece(s) 7 Day(s) 1040Shape B[Steel] S45C EquivalentBlack Oxide Coating18-12 ～ 28-

-

1 Piece(s) 7 Day(s) 1040Shape B[Steel] S45C EquivalentBlack Oxide Coating18--12 ～ 20

-

1 Piece(s) 7 Day(s) 1040Shape B[Steel] S45C EquivalentBlack Oxide Coating1812.7--

-

1 Piece(s) 7 Day(s) 1040Shape B[Steel] S45C EquivalentBlack Oxide Coating1812 ～ 22--

-

1 Piece(s) 7 Day(s) 1015Shape A[Steel] S45C EquivalentBlack Oxide Coating19-12.7-

-

1 Piece(s) 7 Day(s) 1015Shape A[Steel] S45C EquivalentBlack Oxide Coating19-12 ～ 36-

-

1 Piece(s) 7 Day(s) 1015Shape A[Steel] S45C EquivalentBlack Oxide Coating19--12 ～ 28

-

1 Piece(s) 7 Day(s) 1015Shape A[Steel] S45C EquivalentBlack Oxide Coating1912.7--

-

1 Piece(s) 7 Day(s) 1015Shape A[Steel] S45C EquivalentBlack Oxide Coating1912 ～ 28--

-

1 Piece(s) 7 Day(s) 1015Shape B[Steel] S45C EquivalentBlack Oxide Coating19-12.7-

-

1 Piece(s) 7 Day(s) 1015Shape B[Steel] S45C EquivalentBlack Oxide Coating19-12 ～ 31-

-

1 Piece(s) 7 Day(s) 1015Shape B[Steel] S45C EquivalentBlack Oxide Coating19--12 ～ 20

-

1 Piece(s) 7 Day(s) 1015Shape B[Steel] S45C EquivalentBlack Oxide Coating1912.7--

-

1 Piece(s) 7 Day(s) 1015Shape B[Steel] S45C EquivalentBlack Oxide Coating1912 ～ 25--

-

1 Piece(s) 7 Day(s) 1025Shape A[Steel] S45C EquivalentBlack Oxide Coating19-12.7-

-

1 Piece(s) 7 Day(s) 1025Shape A[Steel] S45C EquivalentBlack Oxide Coating19-12 ～ 36-

-

1 Piece(s) 7 Day(s) 1025Shape A[Steel] S45C EquivalentBlack Oxide Coating19--12 ～ 28

-

1 Piece(s) 7 Day(s) 1025Shape A[Steel] S45C EquivalentBlack Oxide Coating1912.7--

-

1 Piece(s) 7 Day(s) 1025Shape A[Steel] S45C EquivalentBlack Oxide Coating1912 ～ 28--

-

1 Piece(s) 7 Day(s) 1025Shape B[Steel] S45C EquivalentBlack Oxide Coating19-12.7-

-

1 Piece(s) 7 Day(s) 1025Shape B[Steel] S45C EquivalentBlack Oxide Coating19-12 ～ 31-

-

1 Piece(s) 7 Day(s) 1025Shape B[Steel] S45C EquivalentBlack Oxide Coating19--12 ～ 20

-

1 Piece(s) 7 Day(s) 1025Shape B[Steel] S45C EquivalentBlack Oxide Coating1912.7--

-

1 Piece(s) 7 Day(s) 1025Shape B[Steel] S45C EquivalentBlack Oxide Coating1912 ～ 25--

-

1 Piece(s) 7 Day(s) 1030Shape A[Steel] S45C EquivalentBlack Oxide Coating19-12.7-

-

1 Piece(s) 7 Day(s) 1030Shape A[Steel] S45C EquivalentBlack Oxide Coating19-12 ～ 36-

-

1 Piece(s) 7 Day(s) 1030Shape A[Steel] S45C EquivalentBlack Oxide Coating19--12 ～ 28

-

1 Piece(s) 7 Day(s) 1030Shape A[Steel] S45C EquivalentBlack Oxide Coating1912.7--

-

1 Piece(s) 7 Day(s) 1030Shape A[Steel] S45C EquivalentBlack Oxide Coating1912 ～ 28--

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Basic Information

Type Timing Pulleys Belt Type S8M

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1,538 Part Numbers

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Specification/Dimensions

  • Belt Width Used(mm)

    • 15
    • 25
    • 30
    • 40

    Clear

  • Pulley Shape

    • Shape A
    • Shape B

    Clear

  • Surface Treatment

    • Black Oxide Coating
    • Clear Anodize
    • Black Anodize
    • Hard Clear Anodize
    • Electroless Nickel Plating

    Clear

  • Number of Teeth

    • 18
    • 19
    • 20
    • 21
    • 22
    • 24
    • 25
    • 26
    • 28
    • 30
    • 32
    • 34
    • 36
    • 38
    • 40
    • 44
    • 48
    • 50
    • 60
    • 72

    Clear

  • Shaft Bore Specs. (Round Hole+Threaded Hole) [P](mm)

    • 12.7

     [12-70/1mm Unit(s)]

    Clear

  • Shaft Bore Specs. (Round Hole) [H](mm)

    • 12.7

     [12-85/1mm Unit(s)]

    Clear

  • Shaft Bore Specs. (New JIS Keyway Hole+Threaded Hole) [N](mm)

    • 55

     [12-50/1mm Unit(s)]

    Clear

  • type

    • E-HTPA□□S8M
    • E-HTPB□□S8M150
    • E-HTPB□□S8M250
    • E-HTPB□□S8M300
    • E-HTPB□□S8M400
    • E-HTPK□□S8M150
    • E-HTPK□□S8M250
    • E-HTPK□□S8M300
    • E-HTPK□□S8M400
    • E-HTPM□□S8M150
    • E-HTPM□□S8M250
    • E-HTPM□□S8M300
    • E-HTPM□□S8M400
    • E-HTPP□□S8M150
    • E-HTPP□□S8M250
    • E-HTPP□□S8M300
    • E-HTPP□□S8M400

    Clear

  • Material

    • Steel
      • S45C Equivalent
    • Aluminum
      • Aluminum Alloy

    Clear

  • CAD

    • 2D
    • 3D

    Clear

Days to Ship

    • All
    • 7 Day(s) or Less

    Clear

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