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Keyless High Torque Timing Pulleys - S5M - MechaLock Standard Type Incorporated (with Centering Function) (Part Numbers)

On Sale Till 31/03/2025
Volume Discount

MISUMI

[Material]
· Pulley: Extra super duralumin aluminum alloy, aluminum alloy, S45C equivalent
· Flange: Aluminum alloy, SPCC
· MegaLock: Aluminum alloy, S45C equivalent

(i)Caution

Regarding RoHS compliance: The products are RoHS non-compliant only when alteration BMC is selected. The products are RoHS-compliant when BMC is not selected. As some parts used in the alteration are RoHS non-compliant, the RoHS notation on this page has been changed to non-compliant. "Non-compliant" is also indicated in the certificate due to information on the left. Since there are no changes to the product, please contact us if you need a Certificate of RoHS Compliance for a part number that does not have alteration BMC selected.
Please note that the swaged flange options, NFC, RFC, and LFC, are not reflected in the CAD data.

Part Number

Configured Part Number is shown.

■S5M

Tooth groove dimensions slightly
vary according to the number of
teeth. (Pitch: 5.0mm)

Standard Tooth Profile

mm	d
mm	Up to 10	12 to 22	24 or more
Y	14	22	27

● Pulley Shape

Shape E

Shape F

HHAA

HHT□

HHAA

HHT□

*3. When d = 6, d + 2.5; and when d = 15, 16, d + 3.5.
*4. For the combination of nominal width and MechaLock inner diameter shown in Table 2, the MechaLock mounting holes are not stepped holes, but are through holes of the MechaLock outer diameter. ([!] Shape E only)
[ ! ] Surface treatment may not be applied to the shaft bores.
[ ! ] Flange is installed.
[ ! ] For orders with no flange, please specify the alteration NFC.
[ ! ] Compatible with S5M type from Mitsuboshi Belting Ltd. as well as Bando Chemical Industries Ltd.
[ ! ] Unless otherwise specified except for teeth and F dimensions, the dimension tolerance conforms to JIS B 0405 Class m.

Table 1: Select Shaft Bore Dia.

d_H7	HHAA					HHTA HHTK HHTN HHTT HHTM	HHTP	HHTAS HHTS	D₁	(L)
d_H7	Max. allowable torque (N⋅m)	D₂	B	G	n	Max. allowable torque (N⋅m)			D₁	(L)
6	4	17	4	20	0.5	—	—	—	—	—
8	6	19	5	22	0.5	19.6	16.6	10.7	23.5	6
10	8	21	5	24	0.5	27.5	19.6	12.7	25.5	6
12	12	24	6	27	1.0	44.1	36.2	24.5	28.5	6.5
14	18	26	6	29	1.0	63.7	50.9	28.4	30.5
15	25	28	7	31	1.2	80.4	54.8	30.4	31.5
16	26	29	7	32	1.2	83.3	58.8	—	33
17	—	—	—	—	—	92.2	76.4	—	33.5
18						95.1	80.3	—	34.5
19						98.1	85.2	—	35.5
20						216	183	122	42	8
22						255	201	—	44
24						363	252	—	46
25						392	264	153	47
28						441	295	—	50	8.5
30						500	396	230	52
32						530	423	—	54
35						883	548	—	62	10

■List of MechaLocks by part number

HHAA	HHTA	HHTK	HHTN	HHTAS	HHTT	HHTM	HHTP	HHTS
MLBA	MLM			MLHS	MLM	MLMB	MLMP	MLHS

Table 2: pulley through hole combination

Nominal Width	MechaLock inner dia. d_H7
S5M100	10·12·14
S5M150	20·22

■Belt Nominal Width / Dimensions

mm	Nominal
mm	S5M100	S5M150	S5M250
A	11	17	27
W	16	22	32

■Mechalock bolt tightening torque (N⋅m)

type	MLBA	MLM	MLMB	MLMP	MLHS
d
6	0.9	3.9	3.2	3.9	2.7
8
10
12
14
15	1.5
16
17	‐
18
19
20		8.8	7.5	8.8	5.6
22
24
25
28
30
32
35		15.7	12.7	15.7	9.6

■Dimensional Tolerances Without Command

Dimension Range		Tolerance (mm)
Over	or Less	Tolerance (mm)
0.5	3	±0.1
3	6	±0.1
6	30	±0.2
30	120	±0.3
120	400	±0.5

[ ! ]Compliant with JIS B 0405 Class m (intermediate).

Type	Part number			[M]Material^*1			[S] Surface Treatment
	Belt Width: 10 mm	Belt width: 15 mm	Belt width: 25 mm	Pulley	Flange	MechaLock	Pulley	Flange	MechaLock
	S5M100	S5M150	S5M250
HHAA	●	●	●	2000 Series Aluminum alloy	Aluminum alloy	2000 Series Aluminum alloy	Clear Anodize
HHTA	●	●	●	Extra Super Duralumin Aluminum alloy	Aluminum alloy	S45C equivalent	Clear Anodize		—
HHTK	●	●	●				Hard Clear Anodized ^*2		—
HHTN	●	●	●				Electroless nickel plating		—
HHTAS	●	●	●			SUS304 Equivalent	Clear Anodize		—
HHTT	●	●	●	S45C equivalent	SPCC	S45C equivalent	—
HHTM	●	●	●				Black Oxide Coating
HHTP	●	●	●				Electroless nickel plating
HHTS	●	●	-	SUS304	SUS304	SUS304 Equivalent	—

*1The above materials and accessories might be changed to the ones equivalent to the originals.
*2 Hard clear anodize: film hardness 300 HV or more

Specification Table

Part number	—	Pulley Shape	—	Shaft Bore Dia.
HHTA 60S5M250	—	F	—	30

Part number			Pulley Shape	d_H7 range 1 mm increments															P.D	O.D	F	E
Type	Number of Teeth	Type Nominal Width		HHAA		HHTA·HHTK·HHTN・HHTT·HHTM·HHTP					HHTAS					HHTS
				Shape E	Shape F	Shape E			Shape F		Shape E			Shape F		Shape E		Shape F
				S5M100	S5M150	S5M100	S5M150	S5M250	S5M150	S5M250	S5M100	S5M150	S5M250	S5M150	S5M250	S5M100	S5M150	S5M150
HHAA HHTA HHTK HHTN HHTAS HHTT HHTM HHTP HHTS	20	S5M100 S5M150 S5M250	E F	6	—	—					—					—			31.83	30.87	36	24
	21																		33.42	32.46	40	27
	22			8	—														35.01	34.05	40	27
	23																		36.61	35.65	45	30
	24			8·10	—	8					8					8			38.20	37.24
	25																		39.79	38.83
	26			8·10		8·10					8·10					8·10			41.38	40.42	48	35
	27																		42.97	42.01
	28																		44.56	43.60
	29																		46.15	45.19	52	36
	30			10·12		10			10	10	18					18			47.75	46.79
	31																		49.34	48.38	55	40
	32			10·12·14·15		10·12·14			10	10·12·14	10·12· 14			10	10·12·14	10·12·14		10	50.93	49.97
	33																		52.52	51.56	58
	34			10·12· 14 to 16		10·12·14	10·12· 14 to 16		10	10·12· 14 to 16	10·12· 14	10·12· 14·15			10·12· 14·15	10·12· 14	10·12· 14·15		54.11	53.15	61	45
	35																		55.70	54.74
	36																		57.30	56.34
	37																		58.89	57.93	67	50
	38																		60.48	59.52
	39																		62.07	61.11
	40			10·12· 14 to 16		10·12·14	10·12· 14 to 19		10	10·12· 14 to 19									63.66	62.70
	41			—	—	10·12·14	10·12· 14 to 19		—	10·12· 14 to 19				—				—	65.25	64.29	70	56
	42																		66.85	65.89
	43																		68.44	67.48	74	58
	44					12·14	12·14 to 20·22			12·14 or more 20·22	12·14	12·14· 15·20	12·14· 15·20		12·14· 15·20	12·14	12·14· 15·20		70.03	69.07
	45																		71.62	70.66	80	60
	46																		73.21	72.25
	47																		74.80	73.84
	48					12·14	12·14 to 20·22	12·14 to 20·22·24		12·14 or more 20·22·24									76.39	75.43	83	63
	49																		77.99	77.03
	50					12·14	12·14 to 20·22	12·14 to 20·22·24·25·28		12·14 to 20·22·24·25·28			12·14· 15·20· 25		12·14· 15·20· 25				79.58	78.62	87	67
	51																		81.17	80.21
	52																		82.76	81.80
	53																		84.35	83.39	95	75
	54																		85.94	84.98
	55																		87.54	86.58
	56																		89.13	88.17	99	80
	57																		90.72	89.76
	58																		92.31	91.35
	59																		93.90	92.94
	60					12·14	12·14 to 20·22	12·14 to 20·22·24·25·28·30		12·14 to 20·22·24·25·28·30			12·14· 15·20· 25·30		12·14· 15·20· 25·30				95.49	94.53
	72					12·14	12·14 to 20·22	12·14 to 20·22·24·25·28·30·32·35											114.59	113.63	119	100

Alterations

Part number	—	Pulley Shape	—	Shaft Bore Dia.	—	(BMC·BMR·FC·NFC·LFC·RFC)
HHTA 60S5M250	—	E	—	25	—	BMC

Alterations	Surface Treatment	Flange Cut		No Flange	Single Flange
Code	BMC·BMR	FC		NFC	LFC·RFC
Spec.	Applies electroless nickel plating on a MechaLock. (Antirusting treatment is applied to screws.) [ ! ] Electroless nickel plating decreases bushing's allowable torque by 20 to 30%. [NG] HHAA is not applicable BMC: Not RoHS Compliant (Screw: SCM435 Dacrotized Treatment) BMR: RoHS Compliant (Screw: SCM435 GeoMet Coating)	Lowers the flange by cutting. FC: 0.5 mm Increments [ ! ] No surface treatment is applied on flange circumference.		The product is shipped without swaging the flange. (Flange Included)	The product is shipped by swaging the flanges either on the bushing side (LFC) or the opposite side (RFC). (Flange 1 pc. Included)
Spec.			[ ! ]FC ≥ (O. D.) +1 [ ! ]FC ≤ F－2 Ordering Code FC35

Part Number

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*In order to open the CAD Data download and 3D preview screen, the part number must be fixed.
Please confirm the part number from "Specification / Dimension"on the left side, and then perform the CAD Data Download / 3D Preview operation.

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Part Number

Part Number	Minimum order quantity	Volume Discount	Days to Ship	RoHS	Belt Width Used (mm)	No. of Teeth (T)	Pulley Shape	Material	Surface Treatment	Shaft Bore Dia. d (mm)

Part Number

Part Number	Minimum order quantity	Volume Discount	Days to Ship	RoHS	Belt Width Used (mm)	No. of Teeth (T)	Pulley Shape	Material	Surface Treatment	Shaft Bore Dia. d (mm)

Download (PDF)

Catalog (2 page view)

Product TOP

Basic Information

Type	Keyless Bushings	Belt Type	S5M	Timing Pulley / Idler	Pulleys

Configure

285 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

Belt Width Used(mm)
10

15

25
Clear
No. of Teeth(T)
20

22

24

25

26

28

30

32

34

36

40

44

48

50

60

72
Clear
Pulley Shape
- Shape E
- Shape F
Clear
Material
- Steel
  - S45C Equivalent
- Aluminum
  - 2000 Series Aluminum Alloy
  - Ultra Super Duralmin Type Aluminum Alloy
Clear
Shaft Bore Dia. d(mm)
6

8

10

12

14

15

16

17

18

19

20

22

24

25

28

30

32

35
Clear
type
- HHAA□□S5M
- HHTA□□S5M
- HHTK□□S5M
- HHTM□□S5M
- HHTN□□S5M
- HHTP□□S5M
- HHTT□□S5M
Clear
Surface Treatment
- Not Provided
- Black Oxide Coating
- Clear Anodize
- Hard Clear Anodize
- Electroless Nickel Plating
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

7 Day(s) or Less

10 Day(s) or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

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Keyless High Torque Timing Pulleys - S5M - MechaLock Standard Type Incorporated (with Centering Function) (Part Numbers)

(i)Caution

2D/3D CAD ?

2D CAD Data with Dim. Fixed

Specification Table

Alterations

Part Number

Basic Information

Configure

Specification/Dimensions

Belt Width Used(mm)

No. of Teeth(T)

Pulley Shape

Material

Shaft Bore Dia. d(mm)

type

Surface Treatment

CAD

Days to Ship

Specify Alterations

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MISUMI Contact 9:00 am – 6:00 pm (Mon – Fri), 9:00 am – 3 pm (Sat)