Why is the order model of the timing belt inconsistent with the actual belt label and engraving?

Order model is MISUMI product model, the label on the belt or printed model on the belt surface is the belt manufacturer model, which varies with manufacturer, but there will be no influence on the product itself.

The timing belt has been broken after use for a very short period of time. Is there a problem with the quality of the belt?

The timing belt is a standard product, and the same batch of products have very few individual quality problems, please refer to 【Main causes of premature breakage and corresponding countermeasures】 to troubleshoot the equipment in use.

Can alteration be made to the timing belt?

Alteration cannot be made to the circumference of the timing belt, and partial alteration can be made to the width.

What kind of belt is better to use under conditions that require high cleanliness?

The use of urethane belts is recommended, which has significantly improved dust drop, compared to the rubber belt.

What are the two main types of timing belts according to their functions? What is the role?

Timing belts are mainly divided into transmission type and driving type. For transmission type, the load can be placed on the timing belt surface for transmission. For driving type, no load is carried, and only the role of transmitting torque is played, which is similar to the role of chain.

How to judge or measure whether the belt tension meets the installation requirements?

It is recommended that the customer purchase the tension meter by himself and make a judgment according to the calculation formula of the initial design.

Which tooth type of the timing belt has the smallest clearance? What will it affect?

The arc tooth type has minimum clearance, which can improve such indicators as positioning accuracy and rigidity.

Notice of End of Sales for Economy Series Pneumatic Equipment Category. More information.

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Part Number Complete

C-HTBN872H8M-300

type Belt Shape Belt Width (mm) Core Wire Material Circumference Length Number of Teeth CAD Days to Ship

Specification/Dimensions

type
- C-HTBN□□H8M
Clear
Belt Shape
- Closed End
Clear
Belt Width (mm)(mm)
20

25

30

40

50

85
Clear
Core Wire Material
- Glass Fiber
  - Glass Core Wire
  - Glass Fiber
Clear
Circumference Length(mm)
288

320

336

344

352

368

376

384

400

408

416

424

440

448

456

472

480

488

496

512

520

536

544

552

560

568

576

584

592

600

608

624

632

640

656

664

672

680

688

696

712

720

728

736

744

760

768

776

784

792

800

808

816

824

832

840

848

856

864

872

880

888

896

912

920

928

936

944

952

960

968

976

984

992

1000

1008

1016

1024

1032

1040

1048

1056

1064

1072

1080

1088

1096

1104

1112

1120

1128

1136

1144

1152

1160

1168

1176

1184

1192

1200

1208

1216

1224

1232

1240

1248

1256

1264

1272

1280

1288

1296

1304

1312

1320

1328

1336

1344

1360

1368

1384

1392

1400

1408

1416

1424

1432

1440

1448

1456

1464

1480

1512

1520

1528

1536

1552

1560

1576

1584

1600

1608

1624

1640

1648

1656

1680

1696

1704

1720

1728

1760

1768

1776

1784

1792

1800

1824

1840

1848

1856

1872

1880

1888

1896

1904

1912

1920

1936

1944

1952

1960

2000

2008

2016

2032

2048

2056

2080

2096

2104

2120

2160

2176

2184

2200

2208

2224

2240

2248

2256

2272

2304

2320

2352

2392

2400

2488

2504

2536

2560

2600

2656

2688

2736

2800

2840

2848

3048

3072

3120

3168

3200

3264

3280

3360

3400

3408

3424

3600

3824

4000

4224

4400

4520

4656

5120
Clear
Number of Teeth
36

40

42

43

44

46

47

48

50

51

52

53

55

56

57

59

60

61

62

64

65

67

68

69

70

71

72

73

74

75

76

78

79

80

82

83

84

85

86

87

89

90

91

92

93

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

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148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

170

171

173

174

175

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177

178

179

180

181

182

183

185

189

190

191

192

194

195

197

198

200

201

203

205

206

207

210

212

213

215

216

220

221

222

223

224

225

228

230

231

232

234

235

236

237

238

239

240

242

243

244

245

250

251

252

254

256

257

260

262

263

265

270

272

273

275

276

278

280

281

282

284

288

290

294

299

300

311

313

317

320

325

332

336

342

350

355

356

381

384

390

396

400

408

410

420

425

426

428

450

478

500

528

550

565

582

640
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

Same day

14 Day(s) or Less
Clear

Specify Alterations

Timing Belts HTD8M (C-HTBN872H8M-300)

Volume Discount

Check FAQ of this product (7 items)

Brand :

MiSUMi Economy

Order Qty :
Total Price :

---
Days to ship :

---

Select part number to Order Now/ Add to Cart

CAD Download

Product Description

Timing Belts HTD8M
It is an arc tooth profile that has higher transmission power than the trapezoidal tooth timing belt.
This belt always uses for high torque transmission in an automation machine
[Features]
• Belt Shape: Closed End
• Belt Tooth Type: H8M (arc tooth profile) • Tooth Pitch: 8 mm.
• Belt Width: 20, 25, 30, 40, 50 and 85 mm.
• Circumference Length Shortest/Longest: 288 mm. and 5120 mm.
• Belt Operating Temperature Range: －10 to 90℃.
• Material:
Tooth rubber: Chloroprene
Core wire: Glass Fiber
Tooth surface protection layer: Nylon canvas
[Applications]
Suitable for use with a timing pulley in a transmission system in an automation machine

Economy HTD 8M Timing Belt

Heavy-DutyLongevityReduced Vibration

- With a wider range of belt widths and lengths, our HTD 8M belts are designed to handle increased loads and higher torque requirements.

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

- The unique arc tooth profile delivers higher power transmission compared to traditional trapezoidal profiles, ensuring optimal efficiency and reduced energy loss.

- The arc tooth profile contributes to minimal vibration and noise generation, creating a smoother and quieter operation.

- Engineered to function reliably in temperatures ranging from -10°C to 90°C, these belts offer versatility across various operating conditions.

MISUMI Standard

Cheaper Price

Product Variety

3D CAD
3D CAD Support

Timing Belt 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.
Local production in China delivers MISUMI quality at low price.

Timing Belt Product Features

■ HTD type arc tooth profile rubber Timing Belt (H8M)
Feature 1: The arc tooth profile has higher transmission power in comparison with the trapezoidal tooth.
Feature 2: Economical and maintenance free.
Feature 3: The tooth rubber adopts chloroprene to protect core wire from dirt, grease, and wet environments.
Feature 4:·Have certain conductivity.
Feature 5:·Recommended Operating Temperature Range: -10 to 90℃.

Timing Belt Dimensional Drawing

Dimensional drawing of MISUMI Economy series product belt

Timing Belt Specifications Overview

■Timing Belt Material/Specification Table

Material
① Rear rubber	Chloroprene
② Tooth rubber	Chloroprene
③ Core wire	Glass Fiber
④ Backing cloth	Nylon canvas

Types	Tooth pitch	Lr	H	h	PLD
H8M	8	5.15	6	3.38	0.686

Belt circumference length is core wire length.

Belt Operating Temperature Range: －10 to 90℃.

The model engraved on the back of the product is the manufacturer model.

MISUMI makes no commitment to this product brand.

For the transmission capacity and calculation and design method of economy series Timing Belt, please refer to the national standard (GB) design manual.

Example of Timing Belt Use

Timing Belt Usage Method Example Drawing	Instructions for use of timing wheel and Timing Belt
	①Driving (The driven wheel is driven by the driving wheel for transmission)
	②Transmission (Used for repeated motion with the object not rotating and high requirements on positioning accuracy)

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

Timing Belt Application Industries

Food	Semiconductor	Smart phone

Automotive	Electronic & Electrical Appliances	Medical

Timing 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.

Timing Belt Precautions

①Do 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.

Timing Belt Related Products

Timing Belts S8M		Timing Pulleys HTD 3M		Timing Pulleys HTD 5M

Part Number

Incomplete part number.
Please use left hand selections to complete a part number.

: 30; 45; 60

Part Number
C-HTBN872H8M-300

Part Number	Price	Minimum Order Qty.	Volume Discount	Days to Ship	RoHS	Belt Shape	Belt Width (mm) (mm)	Core Wire Material	Circumference Length (mm)	Number of Teeth
	₹ 1,591.00	2 Piece(s)	Available	14 Day(s)	10	Closed End	30	[Glass Fiber] Glass Fiber	872	109

Dimensional Drawing of Timing Belt

MISUMI Complete specifications Factory direct sales Original quality

Timing Belt Specification Table

■Specification Table
■Type S8M (Pitch: 8mm)

M Products Model	Width	Number of Teeth	Circumference Length
288H8M	200 (20mm) 250 (25mm) 300 (30mm) 400 (40mm) 500 (50mm) 850 (85mm)	36	288
320H8M		40	320
336H8M		42	336
344H8M		43	344
352H8M		44	352
368H8M		46	368
376H8M		47	376
384H8M		48	384
400H8M		50	400
408H8M		51	408
416H8M		52	416
424H8M		53	424
440H8M		55	440
448H8M		56	448
456H8M		57	456
472H8M		59	472
480H8M		60	480
488H8M		61	488
496H8M		62	496
512H8M		64	512
520H8M		65	520
536H8M		67	536
544H8M		68	544
552H8M		69	552
560H8M		70	560
568H8M		71	568
576H8M		72	576
584H8M		73	584
592H8M		74	592
600H8M		75	600
608H8M		76	608
624H8M		78	624
632H8M		79	632
640H8M		80	640
656H8M		82	656
664H8M		83	664
672H8M		84	672
680H8M		85	680
688H8M		86	688
696H8M		87	696
712H8M		89	712
720H8M		90	720
728H8M		91	728
736H8M		92	736
744H8M		93	744
760H8M		95	760
768H8M		96	768
776H8M		97	776
784H8M		98	784
792H8M		99	792
800H8M		100	800
808H8M		101	808
816H8M		102	816
824H8M		103	824
832H8M		104	832
840H8M		105	840
848H8M		106	848
856H8M		107	856
864H8M		108	864
872H8M		109	872
880H8M		110	880
888H8M		111	888
896H8M		112	896
912H8M		114	912
920H8M	115	920
928H8M	116	928
936H8M	117	936
944H8M	118	944
952H8M	119	952
960H8M	120	960
968H8M	121	968
976H8M	122	976
984H8M	123	984
992H8M	124	992
1000H8M	125	1000
1008H8M	126	1008
1016H8M	127	1016
1024H8M	128	1024
1032H8M	129	1032
1040H8M	130	1040
1048H8M	131	1048
1056H8M	132	1056
1064H8M	133	1064
1072H8M	134	1072
1080H8M	135	1080
1088H8M	136	1088
1096H8M	137	1096
1104H8M	138	1104
1112H8M	139	1112
1120H8M	140	1120
1128H8M	141	1128
1136H8M	142	1136
1144H8M	143	1144
1152H8M	144	1152
1160H8M	145	1160
1168H8M	146	1168
1176H8M	147	1176
1184H8M	148	1184
1192H8M	149	1192
1200H8M	150	1200
1208H8M	151	1208
1216H8M	152	1216
1224H8M	153	1224
1232H8M	154	1232
1240H8M	155	1240
1248H8M	156	1248
1256H8M	157	1256
1264H8M	158	1264
1272H8M	159	1272
1280H8M	160	1280
1288H8M	161	1288
1296H8M	162	1296
1304H8M	163	1304
1312H8M	164	1312
1320H8M	165	1320
1328H8M	166	1328
1336H8M	167	1336
1344H8M	168	1344
1360H8M	170	1360
1368H8M	171	1368
1384H8M	173	1384
1392H8M	174	1392
1400H8M	175	1400
1408H8M	176	1408
1416H8M	177	1416
1424H8M	178	1424
1432H8M	179	1432
1440H8M	180	1440
1448H8M	181	1448
1456H8M	182	1456
1464H8M	183	1464
1480H8M	185	1480
1512H8M	189	1512
1520H8M	190	1520
1528H8M	191	1528
1536H8M	192	1536
1552H8M	194	1552
1560H8M	195	1560
1576H8M	197	1576
1584H8M	198	1584
1600H8M	200	1600
1608H8M	201	1608
1624H8M	203	1624
1640H8M	205	1640
1648H8M	206	1648
1656H8M	207	1656
1680H8M	210	1680
1696H8M	212	1696
1704H8M	213	1704
1720H8M	215	1720
1728H8M	216	1728
1760H8M	220	1760
1768H8M	221	1768
1776H8M	222	1776
1784H8M	223	1784
1792H8M	224	1792
1800H8M	225	1800
1824H8M	228	1824
1840H8M	230	1840
1848H8M	231	1848
1856H8M	232	1856
1872H8M	234	1872
1880H8M	235	1880
1888H8M	236	1888
1896H8M	237	1896
1904H8M	238	1904
1912H8M	239	1912
1920H8M	240	1920
1936H8M	242	1936
1944H8M	243	1944
1952H8M	244	1952
1960H8M	245	1960
2000H8M	250	2000
2008H8M	251	2008
2016H8M	252	2016
2032H8M	254	2032
2048H8M	256	2048
2056H8M	257	2056
2080H8M	260	2080
2096H8M	262	2096
2104H8M	263	2104
2120H8M	265	2120
2160H8M	270	2160
2176H8M	272	2176
2184H8M	273	2184
2200H8M	275	2200
2208H8M	276	2208
2224H8M	278	2224
2240H8M	280	2240
2248H8M	281	2248
2256H8M	282	2256
2272H8M	284	2272
2304H8M	288	2304
2320H8M	290	2320
2352H8M	294	2352
2392H8M	299	2392
2400H8M	300	2400
2488H8M	311	2488
2504H8M	313	2504
2536H8M	317	2536
2560H8M	320	2560
2600H8M	325	2600
2656H8M	332	2656
2688H8M	336	2688
2736H8M	342	2736
2800H8M	350	2800
2840H8M	355	2840
2848H8M	356	2848
3048H8M	381	3048
3072H8M	384	3072
3120H8M	390	3120
3168H8M	396	3168
3200H8M	400	3200
3264H8M	408	3264
3280H8M	410	3280
3360H8M	420	3360
3400H8M	425	3400
3408H8M	426	3408
3424H8M	428	3424
3600H8M	450	3600
3824H8M	478	3824
4000H8M	500	4000
4224H8M	528	4224
4400H8M	550	4400
4520H8M	565	4520
4656H8M	582	4656
5120H8M	640	5120

Basic Information

Belt Type	HTD 8M	Belt Material	Rubber Belt	Belt Tooth Surface	Standard (Single Sided)
Belt Shape Type	Circular Tooth Profile HTD Belt	Transmission Torque	High Torque Transmission

Please check the type/dimensions/specifications of the part C-HTBN872H8M-300 in the Timing Belts HTD8M series.

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

Frequently asked question (FAQ)

Question: Why is the order model of the timing belt inconsistent with the actual belt label and engraving?: Answer: Order model is MISUMI product model, the label on the belt or printed model on the belt surface is the belt manufacturer model, which varies with manufacturer, but there will be no influence on the product itself.
Question: The timing belt has been broken after use for a very short period of time. Is there a problem with the quality of the belt?: Answer:
The timing belt is a standard product, and the same batch of products have very few individual quality problems, please refer to 【Main causes of premature breakage and corresponding countermeasures】to troubleshoot the equipment in use.
Question: Can alteration be made to the timing belt?: Answer: Alteration cannot be made to the circumference of the timing belt, and partial alteration can be made to the width.
Question: What kind of belt is better to use under conditions that require high cleanliness?: Answer: The use of urethane belts is recommended, which has significantly improved dust drop, compared to the rubber belt.
Question: What are the two main types of timing belts according to their functions? What is the role?: Answer: Timing belts are mainly divided into transmission type and driving type. For transmission type, the load can be placed on the timing belt surface for transmission. For driving type, no load is carried, and only the role of transmitting torque is played, which is similar to the role of chain.
Question: How to judge or measure whether the belt tension meets the installation requirements?: Answer: It is recommended that the customer purchase the tension meter by himself and make a judgment according to the calculation formula of the initial design.
Question: Which tooth type of the timing belt has the smallest clearance? What will it affect?: Answer: The arc tooth type has minimum clearance, which can improve such indicators as positioning accuracy and rigidity.

Check other FAQ (4 items) Hide

Product variants

Part Number
C-HTBN1000H8M-400
C-HTBN1000H8M-500
C-HTBN1000H8M-850
C-HTBN872H8M-400
C-HTBN872H8M-500
C-HTBN872H8M-850

Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	RoHS	Belt Shape	Belt Width (mm) (mm)	Core Wire Material	Circumference Length (mm)	Number of Teeth
₹ 2,319.00	2 Piece(s)	Available	14 Day(s)	10	Closed End	40	[Glass Fiber] Glass Fiber	1000	125
₹ 2,645.00	2 Piece(s)	Available	14 Day(s)	10	Closed End	50	[Glass Fiber] Glass Fiber	1000	125
₹ 4,130.00	2 Piece(s)	Available	14 Day(s)	10	Closed End	85	[Glass Fiber] Glass Fiber	1000	125
₹ 2,058.00	2 Piece(s)	Available	14 Day(s)	10	Closed End	40	[Glass Fiber] Glass Fiber	872	109
₹ 2,387.00	2 Piece(s)	Available	14 Day(s)	10	Closed End	50	[Glass Fiber] Glass Fiber	872	109
₹ 3,693.00	2 Piece(s)	Available	14 Day(s)	10	Closed End	85	[Glass Fiber] Glass Fiber	872	109

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