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Timing Pulleys Keyless/High Torque/S5M

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
MISUMI Keyless Timing Pulley S5M Specifications Drawing
The shaft bore may not have surface treatment.
Bushings are available in Standard Type (ST Bushing) and Short Type (SH Bushing). Refer to Detailed Specifications of Bushings
Specifications Overview
Part Number Material Surface Treatment
Belt Width 10mmBelt Width 15mmBelt Width 25mmPulleyFlangeBushingPulleyFlangeBushing
A: 11  W: 16A: 17  W: 22A: 27  W: 32
E-HTLA□□S5M100E-HTLA□□S5M150E-HTLA□□S5M250Aluminum Alloy 7A09Aluminum AlloyEquivalent to S45CClear Anodized-
E-HTLK□□S5M100E-HTLK□□S5M150E-HTLK□□S5M250Hard Clear Anodize-
E-HTPL□□S5M100E-HTPL□□S5M150E-HTPL□□S5M250Equivalent to S45CSPCCEquivalent to S45CFerroferric Oxide Protective Film
E-HTLG□□S5M100E-HTLG□□S5M150E-HTLG□□S5M250Electroless Nickel Plating
Film hardness of hard clear anodize is 300HV~.
If there are requirements for rust prevention, give priority to products with surface treatment of electroless nickel plating on other pages.
Specification Table
Part NumberPulley
Shape
dH7 range (select Shaft Bore Dia. according to Table 1)P.D.O.D.FE
S5M100S5M150S5M250
TypeNumber of TeethType & Nominal WidthShape E
(ST Bushing)
Shape F
(SH Bushing)
Shape E
(ST Bushing)
Shape F
(SH Bushing)
Shape E
(ST Bushing)
Shape F
(SH Bushing)
E-HTLA
E-HTLK
E-HTPL
E-HTLG
22S5M100
*A:11
*W:16

S5M150
*A:17
*W:22

S5M250
*A:27
*W:32
E
F
8-----35.0134.054027
248・10810810838.237.244530
258・10810810839.7938.83
268~12810・11・128~1210・11・128~1241.3840.424835
288~12810・11・128~1210・11・128~1244.5643.6
3010~15-10~1510・11・1210~1510・11・1247.7546.795236
3210~1710~1710・11・1210~1710・11・1250.9349.975540
3410~1710~1710・11・1210~1710~1754.1153.156145
3610~1710~1710・11・1210~1710~1757.356.34
4010~1710~1710・11・1210~1710~1763.6662.76750
4412~2512~251212~2512~2570.0369.077458
4812~2812~281212~2812~2876.3975.438363
5012~32-12~321212~3212~3279.5878.628767
6012~3212~401212~4012~3595.4994.539980
7212~3212~421212~4212~35114.59113.63119100
Select Shaft Bore Dia. according to Table 1

■Table 1: Shaft Bore Dia. Selection
H7Allowable max. torque N・mD(L)
ST BushingSH BushingST BushingSH Bushing
8168.525.524.58.5
103918302910.5
1143203130
1248233231
147337353612
1578393637
168342373813
1788453839
1815448434014
19163494542
20171974646
221861104847
242061215049
252161245251
28353141545315.5
303821495756
32412163595816.5
354511736361
38686-70-19
4072571
427577420
Using a bushing with electroless nickel plated surface reduces maximum allowable torque and axial load by 20%-30%.
Product Features
Features of MISUMI Keyless Timing Pulleys
Feature 1: Keyless timing pulleys require no keyway machining, and round shaft and round hole can be used directly.
    Urgent design changes can be made due to the reduction of cutting and machining time.
MISUMI keyless timing pulleys can accommodate urgent design changes

Feature 2: Keyless timing pulleys are connected with bolts only, allowing for easy installation and removal.
    Equipment maintenance can be easily carried out without using a special tool. Parts are reusable, effectively reducing the cost.
MISUMI keyless timing pulleys are easy to install and remove

Feature 3: Keyless timing pulleys enable free alignment at any position during assembly.
    Alignment control is possible during assembly, thus eliminating the need to align the key and tooth in the design phase.
Keyless timing pulleys, free alignment

Feature 4: Keyless timing pulleys have no loosening. When a key is used, the keyway becomes loose, but there is no gap in the keyless bushing. It is therefore suitable for places where there are repeated forward and reverse rotations.
    Long-term high coaxiality connection can be achieved. Suitable for servo motors and other places where there are repeated forward and reverse rotations.
Keyless timing pulleys, no loosening
Usage Method
■Mounting method for keyless timing pulleys
①Wipe off the stains on the shaft surface and apply a layer of lubricant or grease. (Do not use any lubricant or grease that contains molybdenum abrasion inhibiting agent.)
②Also wipe the contact surface between the timing pulley and the bushing, and apply lubricant or grease. In addition, the fastening bolt thread surface and bearing surface must be applied lubricant or grease.
③Insert the timing pulley and bushing into the shaft after temporary assembly. (Do not tighten the bushing directly with the bolt without putting it through the shaft.)
④After positioning is completed, tighten the bolts gently (about 1/4 of the specified tightening torque) and diagonally in sequence with a torque wrench.
⑤Tighten with increased tightening torque (about 1/2 of the specified tightening torque).
⑥Tighten again to the specified tightening torque.
⑦Tighten the fastening bolt circumferentially in sequence.

■Disassembly method for keyless timing pulleys
①Work with the unit at a complete stop.
②Loose the fastening bolt circumferentially in sequence
③Insert the bolt into the threaded hole for disassembly and evenly screw it in.
④When reinstalling, repeat the steps in “Installation”.
Precautions
① If there are requirements for rust prevention, give priority to products with surface treatment of electroless nickel plating on other pages.
 Please refer tosurface treatment and rust prevention methods
② When installing a keyless bushing, be sure to apply lubricant or grease to the shaft surface, the contact surface between the pulley and the bushing, and the fastening bolt.
 Otherwise it will not be securely tightened and may cause the shaft to idle.
③Tighten the bolt after inserting the bushing into the shaft. (If the bolts is tightened before inserting the bushing, it will cause deformation of the bushing.)
④Use a torque spanner to tighten the bolts.
⑤Do not use bolts other than those supplied.
Example of Use
MISUMI Keyless Timing Pulley Example
■Mechanism name
Dustproof Lifting Machine

■Mechanism function
Lifting machine for heavy workpieces
Use in dusty places

■Function of Keyless Timing Pulleys
Rotates ball screws by means of a keyless toothed timing belt, lifting and lowering the positioning stage

For details, please click Dustproof Lifting Machine
Application Industries
Smart Phones Medical Electronic & Electrical
MISUMI keyless timing pulleys are applicable to the smart phone industry MISUMI keyless timing pulleys are applicable to the medical industry MISUMI keyless timing pulleys are applicable to the electronics and electrical appliances industry
Automotive Robotics Lithium battery
MISUMI keyless timing pulleys are applicable to the automotive industry MISUMI keyless timing pulleys are applicable to the robotics industry MISUMI keyless timing pulleys are applicable to the lithium battery industry
Related Products
S5M Timing Belt Idler Pulley S5M Timing Belt Timing Pulleys High Torque S5M
MISUMI Idlers for Flat Belts MISUMI Idlers for Flat Belts MISUMI High Torque Timing Pulleys S2M Type
C-AHTFW26-S5M150-10 Representative model: C-HTBN230S5M-150 E-HTPK26S5M150-B-NK10
Advantage: Short delivery time, multiple types Advantage: Short delivery time, multiple types Advantage: Short delivery time, multiple types
Related Documents


Part Number 

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Part Number
E-HTLG22S5M100-E-8
E-HTLG24S5M100-E-[8,​10]
E-HTLG24S5M100-F-8
E-HTLG24S5M150-E-10
E-HTLG24S5M150-F-8
E-HTLG24S5M250-E-10
E-HTLG24S5M250-F-8
E-HTLG25S5M100-E-[8,​10]
E-HTLG25S5M100-F-8
E-HTLG25S5M150-E-10
E-HTLG25S5M150-F-8
E-HTLG25S5M250-E-10
E-HTLG25S5M250-F-8
E-HTLG26S5M100-E-[8,​10,​11,​12]
E-HTLG26S5M100-F-8
E-HTLG26S5M150-E-[10,​11,​12]
E-HTLG26S5M150-F-[8,​10,​11,​12]
E-HTLG26S5M250-E-[10,​11,​12]
E-HTLG26S5M250-F-[8,​10,​11,​12]
E-HTLG28S5M100-E-[8,​10,​11,​12]
E-HTLG28S5M100-F-8
E-HTLG28S5M150-E-[10,​11,​12]
E-HTLG28S5M150-F-[8,​10,​11,​12]
E-HTLG28S5M250-E-[10,​11,​12]
E-HTLG28S5M250-F-[8,​10,​11,​12]
E-HTLG30S5M100-E-[10,​11,​12,​14,​15]
E-HTLG30S5M150-E-[10,​11,​12,​14,​15]
E-HTLG30S5M150-F-[10,​11,​12]
E-HTLG30S5M250-E-[10,​11,​12,​14,​15]
E-HTLG30S5M250-F-[10,​11,​12]
E-HTLG32S5M100-E-[10,​11,​12,​14,​15,​16,​17]
E-HTLG32S5M150-E-[10,​11,​12,​14,​15,​16,​17]
E-HTLG32S5M150-F-[10,​11,​12]
E-HTLG32S5M250-E-[10,​11,​12,​14,​15,​16,​17]
E-HTLG32S5M250-F-[10,​11,​12]
E-HTLG34S5M100-E-[10,​11,​12,​14,​15,​16,​17]
E-HTLG34S5M150-E-[10,​11,​12,​14,​15,​16,​17]
E-HTLG34S5M150-F-[10,​11,​12]
E-HTLG34S5M250-E-[10,​11,​12,​14,​15,​16,​17]
E-HTLG34S5M250-F-[10,​11,​12,​14,​15,​16,​17]
E-HTLG36S5M100-E-[10,​11,​12,​14,​15,​16,​17]
E-HTLG36S5M150-E-[10,​11,​12,​14,​15,​16,​17]
E-HTLG36S5M150-F-[10,​11,​12]
E-HTLG36S5M250-E-[10,​11,​12,​14,​15,​16,​17]
E-HTLG36S5M250-F-[10,​11,​12,​14,​15,​16,​17]
E-HTLG40S5M100-E-[10,​11,​12,​14,​15,​16,​17]
E-HTLG40S5M150-E-[10,​11,​12,​14,​15,​16,​17]
E-HTLG40S5M150-F-[10,​11,​12]
E-HTLG40S5M250-E-[10,​11,​12,​14,​15,​16,​17]
E-HTLG40S5M250-F-[10,​11,​12,​14,​15,​16,​17]
E-HTLG44S5M100-E-[12,​14,​15,​16,​17,​18,​19,​20,​22,​24,​25]
E-HTLG44S5M150-E-[12,​14,​15,​16,​17,​18,​19,​20,​22,​24,​25]
E-HTLG44S5M150-F-12
E-HTLG44S5M250-E-[12,​14,​15,​16,​17,​18,​19,​20,​22,​24,​25]
E-HTLG44S5M250-F-[12,​14,​15,​16,​17,​18,​19,​20,​22,​24,​25]
E-HTLG48S5M100-E-[12,​14,​15,​16,​17,​18,​19,​20,​22,​24,​25,​28]
E-HTLG48S5M150-E-[12,​14,​15,​16,​17,​18,​19,​20,​22,​24,​25,​28]
E-HTLG48S5M150-F-12
E-HTLG48S5M250-E-[12,​14,​15,​16,​17,​18,​19,​20,​22,​24,​25,​28]
E-HTLG48S5M250-F-[12,​14,​15,​16,​17,​18,​19,​20,​22,​24,​25,​28]
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipRoHSBelt Width Used
(mm)
Pulley Shape Material Surface Treatment Number of Teeth Shaft Bore Dia. [d]
(mm)

-

1 Piece(s) 8 Day(s) 1010Shape E[Steel] S45C EquivalentElectroless Nickel Plating228

-

1 Piece(s) 8 Day(s) 1010Shape E[Steel] S45C EquivalentElectroless Nickel Plating248 ~ 10

-

1 Piece(s) 8 Day(s) 1010Shape F[Steel] S45C EquivalentElectroless Nickel Plating248

-

1 Piece(s) 8 Day(s) 1015Shape E[Steel] S45C EquivalentElectroless Nickel Plating2410

-

1 Piece(s) 8 Day(s) 1015Shape F[Steel] S45C EquivalentElectroless Nickel Plating248

-

1 Piece(s) 8 Day(s) 1025Shape E[Steel] S45C EquivalentElectroless Nickel Plating2410

-

1 Piece(s) 8 Day(s) 1025Shape F[Steel] S45C EquivalentElectroless Nickel Plating248

-

1 Piece(s) 8 Day(s) 1010Shape E[Steel] S45C EquivalentElectroless Nickel Plating258 ~ 10

-

1 Piece(s) 8 Day(s) 1010Shape F[Steel] S45C EquivalentElectroless Nickel Plating258

-

1 Piece(s) 8 Day(s) 1015Shape E[Steel] S45C EquivalentElectroless Nickel Plating2510

-

1 Piece(s) 8 Day(s) 1015Shape F[Steel] S45C EquivalentElectroless Nickel Plating258

-

1 Piece(s) 8 Day(s) 1025Shape E[Steel] S45C EquivalentElectroless Nickel Plating2510

-

1 Piece(s) 8 Day(s) 1025Shape F[Steel] S45C EquivalentElectroless Nickel Plating258

-

1 Piece(s) 8 Day(s) 1010Shape E[Steel] S45C EquivalentElectroless Nickel Plating268 ~ 12

-

1 Piece(s) 8 Day(s) 1010Shape F[Steel] S45C EquivalentElectroless Nickel Plating268

-

1 Piece(s) 8 Day(s) 1015Shape E[Steel] S45C EquivalentElectroless Nickel Plating2610 ~ 12

-

1 Piece(s) 8 Day(s) 1015Shape F[Steel] S45C EquivalentElectroless Nickel Plating268 ~ 12

-

1 Piece(s) 8 Day(s) 1025Shape E[Steel] S45C EquivalentElectroless Nickel Plating2610 ~ 12

-

1 Piece(s) 8 Day(s) 1025Shape F[Steel] S45C EquivalentElectroless Nickel Plating268 ~ 12

-

1 Piece(s) 8 Day(s) 1010Shape E[Steel] S45C EquivalentElectroless Nickel Plating288 ~ 12

-

1 Piece(s) 8 Day(s) 1010Shape F[Steel] S45C EquivalentElectroless Nickel Plating288

-

1 Piece(s) 8 Day(s) 1015Shape E[Steel] S45C EquivalentElectroless Nickel Plating2810 ~ 12

-

1 Piece(s) 8 Day(s) 1015Shape F[Steel] S45C EquivalentElectroless Nickel Plating288 ~ 12

-

1 Piece(s) 8 Day(s) 1025Shape E[Steel] S45C EquivalentElectroless Nickel Plating2810 ~ 12

-

1 Piece(s) 8 Day(s) 1025Shape F[Steel] S45C EquivalentElectroless Nickel Plating288 ~ 12

-

1 Piece(s) 8 Day(s) 1010Shape E[Steel] S45C EquivalentElectroless Nickel Plating3010 ~ 15

-

1 Piece(s) 8 Day(s) 1015Shape E[Steel] S45C EquivalentElectroless Nickel Plating3010 ~ 15

-

1 Piece(s) 8 Day(s) 1015Shape F[Steel] S45C EquivalentElectroless Nickel Plating3010 ~ 12

-

1 Piece(s) 8 Day(s) 1025Shape E[Steel] S45C EquivalentElectroless Nickel Plating3010 ~ 15

-

1 Piece(s) 8 Day(s) 1025Shape F[Steel] S45C EquivalentElectroless Nickel Plating3010 ~ 12

-

1 Piece(s) 8 Day(s) 1010Shape E[Steel] S45C EquivalentElectroless Nickel Plating3210 ~ 17

-

1 Piece(s) 8 Day(s) 1015Shape E[Steel] S45C EquivalentElectroless Nickel Plating3210 ~ 17

-

1 Piece(s) 8 Day(s) 1015Shape F[Steel] S45C EquivalentElectroless Nickel Plating3210 ~ 12

-

1 Piece(s) 8 Day(s) 1025Shape E[Steel] S45C EquivalentElectroless Nickel Plating3210 ~ 17

-

1 Piece(s) 8 Day(s) 1025Shape F[Steel] S45C EquivalentElectroless Nickel Plating3210 ~ 12

-

1 Piece(s) 8 Day(s) 1010Shape E[Steel] S45C EquivalentElectroless Nickel Plating3410 ~ 17

-

1 Piece(s) 8 Day(s) 1015Shape E[Steel] S45C EquivalentElectroless Nickel Plating3410 ~ 17

-

1 Piece(s) 8 Day(s) 1015Shape F[Steel] S45C EquivalentElectroless Nickel Plating3410 ~ 12

-

1 Piece(s) 8 Day(s) 1025Shape E[Steel] S45C EquivalentElectroless Nickel Plating3410 ~ 17

-

1 Piece(s) 8 Day(s) 1025Shape F[Steel] S45C EquivalentElectroless Nickel Plating3410 ~ 17

-

1 Piece(s) 8 Day(s) 1010Shape E[Steel] S45C EquivalentElectroless Nickel Plating3610 ~ 17

-

1 Piece(s) 8 Day(s) 1015Shape E[Steel] S45C EquivalentElectroless Nickel Plating3610 ~ 17

-

1 Piece(s) 8 Day(s) 1015Shape F[Steel] S45C EquivalentElectroless Nickel Plating3610 ~ 12

-

1 Piece(s) 8 Day(s) 1025Shape E[Steel] S45C EquivalentElectroless Nickel Plating3610 ~ 17

-

1 Piece(s) 8 Day(s) 1025Shape F[Steel] S45C EquivalentElectroless Nickel Plating3610 ~ 17

-

1 Piece(s) 8 Day(s) 1010Shape E[Steel] S45C EquivalentElectroless Nickel Plating4010 ~ 17

-

1 Piece(s) 8 Day(s) 1015Shape E[Steel] S45C EquivalentElectroless Nickel Plating4010 ~ 17

-

1 Piece(s) 8 Day(s) 1015Shape F[Steel] S45C EquivalentElectroless Nickel Plating4010 ~ 12

-

1 Piece(s) 8 Day(s) 1025Shape E[Steel] S45C EquivalentElectroless Nickel Plating4010 ~ 17

-

1 Piece(s) 8 Day(s) 1025Shape F[Steel] S45C EquivalentElectroless Nickel Plating4010 ~ 17

-

1 Piece(s) 8 Day(s) 1010Shape E[Steel] S45C EquivalentElectroless Nickel Plating4412 ~ 25

-

1 Piece(s) 8 Day(s) 1015Shape E[Steel] S45C EquivalentElectroless Nickel Plating4412 ~ 25

-

1 Piece(s) 8 Day(s) 1015Shape F[Steel] S45C EquivalentElectroless Nickel Plating4412

-

1 Piece(s) 8 Day(s) 1025Shape E[Steel] S45C EquivalentElectroless Nickel Plating4412 ~ 25

-

1 Piece(s) 8 Day(s) 1025Shape F[Steel] S45C EquivalentElectroless Nickel Plating4412 ~ 25

-

1 Piece(s) 8 Day(s) 1010Shape E[Steel] S45C EquivalentElectroless Nickel Plating4812 ~ 28

-

1 Piece(s) 8 Day(s) 1015Shape E[Steel] S45C EquivalentElectroless Nickel Plating4812 ~ 28

-

1 Piece(s) 8 Day(s) 1015Shape F[Steel] S45C EquivalentElectroless Nickel Plating4812

-

1 Piece(s) 8 Day(s) 1025Shape E[Steel] S45C EquivalentElectroless Nickel Plating4812 ~ 28

-

1 Piece(s) 8 Day(s) 1025Shape F[Steel] S45C EquivalentElectroless Nickel Plating4812 ~ 28

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Basic Information

Type Keyless Bushings Belt Type S5M

Tech Support