Timing Belts S8M

Brand :

MISUMI

Caution

Product Description

Timing Belts S8M
It is a round tooth profile rubber timing belt. This belt always uses for high torque transmission in an automation machine
[Features]
• Belt Shape: Closed End
• Belt Tooth Type: S8M (round tooth profile)
• Tooth Pitch: 8 mm.
• Belt Width: 15, 25, 30 and 40 mm.
• Circumference Length Shortest/Longest: 400 mm. and 4400 mm.
• Belt Operating Temperature Range: －30 to 90℃.
• Material:
Tooth rubber: Chloroprene
Core wire: Glass Fiber
Backing cloth layer: Nylon canvas
[Applications]
Suitable for use with a timing pulley in a transmission system in an automation machine

Economy S8M Timing Belt

Minimizing VibrationTemperature RangeExceptional Torque

- With increased belt width options and a wider range of lengths, our S8M belts are built to handle the toughest conditions and heavy loads.

- Constructed with high-quality chloroprene rubber, these belts excel in resisting abrasion, oil, and grease, ensuring extended service life even in demanding environments.

- The accurately designed circular tooth profile guarantees smooth and efficient power transmission, minimizing noise and vibration for optimal performance.

- Engineered to function reliably in temperatures ranging from -30°C to 90°C, these belts offer versatility across various operating conditions.

- Designed to handle extremely high torque loads, these S8M belts are engineered for heavy-duty applications where maximum power transmission is required.

MISUMI Standard

Cheaper Price

Product Variety

3D CAD
3D CAD Support

Product Overview

Usually, timing pulleys and timing belt 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

■ Material

Material
①Back Rubber	②Tooth Rubber	③Core Wire	④Tooth Fabric
Chloroprene Rubber	Chloroprene Rubber	Glass Fiber	Nylon Cloth

Dimensional drawing of MISUMI economic type belt

Specification Table

Economic type Toothed timing belt S2M S3M S5M S8M S14M type Ordering example

Types	Nominal Width	Pitch (mm)	Ra	Lr	H	h	i	PLD	Unit weight g/m (Width：10mm)

S8M	150 (15mm) 250 (25mm) 300 (30mm) 400 (40mm)	8	5.2	5.2	5.3	3.05	2.25	0.686	52

Belt circumference length is core wire length.

Belt operating temperature range: -30 to 90 ℃.

The model engraved on the back of the product is the factory-managed model, which may be different from the actual product.

For the transmission capacity and calculation and design method of Economy series timing belt, please refer to the national standard (GB) design manual.

Weight is a theoretical value for reference only, which may be different from the actual product.

■ Specification Table
C-HTBN
Type S8M (Tooth pitch: 8mm)

Part Number		Belt Nominal Width	Number of Teeth	Belt Circumference Length (mm)
Type	Belt Number	Belt Nominal Width	Number of Teeth	Belt Circumference Length (mm)
C-HTBN	288S8M	150 (15mm) 250 (25mm) 300 (30mm) 400 (40mm)	36	288
	328S8M		41	328
	352S8M		44	352
	376S8M		47	376
	384S8M		48	384
	392S8M		49	392
	400S8M		50	400
	408S8M		51	408
	416S8M		52	416
	424S8M		53	424
	432S8M		54	432
	440S8M		55	440
	448S8M		56	448
	456S8M		57	456
	464S8M		58	464
	472S8M		59	472
	480S8M		60	480
	488S8M		61	488
	496S8M		62	496
	512S8M		64	512
	520S8M		65	520
	528S8M		66	528
	536S8M		67	536
	544S8M		68	544
	552S8M		69	552
	560S8M		70	560
	576S8M		72	576
	584S8M		73	584
	592S8M		74	592
	600S8M		75	600
	608S8M		76	608
	616S8M		77	616
	624S8M		78	624
	632S8M		79	632
	640S8M		80	640
	648S8M		81	648
	656S8M		82	656
	664S8M		83	664
	672S8M		84	672
	680S8M		85	680
	688S8M		86	688
	696S8M		87	696
	704S8M		88	704
	712S8M		89	712
	720S8M		90	720
	728S8M		91	728
	736S8M		92	736
	744S8M		93	744
	752S8M		94	752
	760S8M		95	760
	768S8M		96	768
	776S8M		97	776
	784S8M		98	784
	792S8M		99	792
	800S8M		100	800
	808S8M		101	808
	816S8M		102	816
	824S8M		103	824
	832S8M		104	832
	840S8M		105	840
	848S8M		106	848
	856S8M		107	856
	864S8M		108	864
	872S8M		109	872
880S8M	110	880
888S8M	111	888
896S8M	112	896
904S8M	113	904
912S8M	114	912
920S8M	115	920
928S8M	116	928
936S8M	117	936
944S8M	118	944
952S8M	119	952
960S8M	120	960
968S8M	121	968
976S8M	122	976
984S8M	123	984
992S8M	124	992
1000S8M	125	1000
1008S8M	126	1008
1016S8M	127	1016
1024S8M	128	1024
1032S8M	129	1032
1040S8M	130	1040
1048S8M	131	1048
1056S8M	132	1056
1064S8M	133	1064
1072S8M	134	1072
1080S8M	135	1080
1088S8M	136	1088
1096S8M	137	1096
1104S8M	138	1104
1112S8M	139	1112
1120S8M	140	1120
1128S8M	141	1128
1136S8M	142	1136
1144S8M	143	1144
1152S8M	144	1152
1160S8M	145	1160
1168S8M	146	1168
1176S8M	147	1176
1184S8M	148	1184
1192S8M	149	1192
1200S8M	150	1200
1208S8M	151	1208
1216S8M	152	1216
1224S8M	153	1224
1232S8M	154	1232
1240S8M	155	1240
1248S8M	156	1248
1256S8M	157	1256
1264S8M	158	1264
1272S8M	159	1272
1280S8M	160	1280
1296S8M	162	1296
1304S8M	163	1304
1312S8M	164	1312
1320S8M	165	1320
1328S8M	166	1328
1336S8M	167	1336
1344S8M	168	1344
1352S8M	169	1352
1360S8M	170	1360
1376S8M	172	1376
1384S8M	173	1384
1392S8M	174	1392
1400S8M	175	1400
1424S8M	178	1424
1432S8M	179	1432
1440S8M	180	1440
1480S8M	185	1480
1504S8M	188	1504
1512S8M	189	1512
1520S8M	190	1520
1528S8M	191	1528
1536S8M	192	1536
1544S8M	193	1544
1552S8M	194	1552
1560S8M	195	1560
1568S8M	196	1568
1576S8M	197	1576
1584S8M	198	1584
1592S8M	199	1592
1600S8M	200	1600
1608S8M	201	1608
1624S8M	203	1624
1632S8M	204	1632
1640S8M	205	1640
1648S8M	206	1648
1672S8M	209	1672
1680S8M	210	1680
1688S8M	211	1688
1696S8M	212	1696
1728S8M	216	1728
1760S8M	220	1760
1776S8M	222	1776
1792S8M	224	1792
1800S8M	225	1800
1816S8M	227	1816
1824S8M	228	1824
1832S8M	229	1832
1840S8M	230	1840
1880S8M	235	1880
1896S8M	237	1896
1904S8M	238	1904
1912S8M	239	1912
1920S8M	240	1920
1928S8M	241	1928
1936S8M	242	1936
1952S8M	244	1952
1960S8M	245	1960
2000S8M	250	2000
2016S8M	252	2016
2032S8M	254	2032
2040S8M	255	2040
2048S8M	256	2048
2056S8M	257	2056
2080S8M	260	2080
2104S8M	263	2104
2120S8M	265	2120
2136S8M	267	2136
2160S8M	270	2160
2200S8M	275	2200
2240S8M	280	2240
2256S8M	282	2256
2272S8M	284	2272
2288S8M	286	2288
2296S8M	287	2296
2304S8M	288	2304
2320S8M	290	2320
2400S8M	300	2400
2432S8M	304	2432
2448S8M	306	2448
2464S8M	308	2464
2496S8M	312	2496
2504S8M	313	2504
2520S8M	315	2520
2536S8M	317	2536
2560S8M	320	2560
2600S8M	325	2600
2624S8M	328	2624
2680S8M	335	2680
2736S8M	342	2736
2760S8M	345	2760
2800S8M	350	2800
2848S8M	356	2848
2880S8M	360	2880
2904S8M	363	2904
2920S8M	365	2920
2944S8M	368	2944
3000S8M	375	3000
3048S8M	381	3048
3120S8M	390	3120
3200S8M	400	3200
3264S8M	408	3264
3280S8M	410	3280
3304S8M	413	3304
3400S8M	425	3400
3440S8M	430	3440
3600S8M	450	3600
3680S8M	460	3680
3800S8M	475	3800
3880S8M	485	3880
4000S8M	500	4000
4400S8M	550	4400
5280S8M	660	5280

Product Feature

		■ 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℃.
		■ 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 rubber timing belt (MXL/XL/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 Drawing	Instructions for use of timing wheel and timing belt
	① Driving (The driven wheel is driven by the driving wheel for transmission)
	② Transmission (Used for repeated motion with the object not rotating and high requirements on positioning accuracy)

Usage Method Example Drawing	Instructions for use of timing wheel and timing belt
	③ Conveyance (Plates are conveyed by two timing toothed belts)
	④ Traction transmission (Workpieces are clamped and transmitted by the belt)

Usage Method

■ Installation method for timing belt transmission
①	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.
②	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.
③	Choose the right belt to replace.
④	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.
⑤	Check the pulley for abnormal wear or cracks. If the wear is excessive, the pulley must be replaced.
⑥	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:

⑦	Check the remaining transmission device components, such as bearings and bushings, for symmetry, durability, lubrication and other conditions.
⑧	Install a new belt on the pulley. Never pry or use too much force.
⑨	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.
⑩	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.
⑪	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

① Do not bend the timing belt by force.
It is strictly forbidden to bend the belt, which easily causes breakage

Do not use in direct contact with water, solvent, oil, acid, alkali, UV, ozone, etc.

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	Smartphone

Automotive	Electronic & Electrical Appliances	Medical

High Torque Timing Pulleys S2M Type	Flat Belt	(Economy Series) Toothed Timing Belt MXL XL L H Type

Typical model: HTPA48S2M040-B-N10	Typical model: HBLT350-4.23	Typical model: C-TBN236MXL025