Timing belts / P#M / CR / glass fibre (Part Numbers - CAD Download)

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Technical Information

Back to the Category Timing Belt

Technical Drawing - Timing Belts

High Torque Timing Belts - P:Related Image

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Available dimensions and tolerances can be found under the tab More information.

Basic Properties (e.g., material, hardness, coating, tolerance) - Timing Belts

Type	Material
PTBN	Back Rubber	Chloroprene Rubber
	Tooth Rubber
	Core Wire	Glass Fiber
	Tooth Fabric	Nylon Cloth

Further specifications can be found under the tab More information.

Composition of a Product Code - Timing Belts

Part Number

Type	Belt Number	Belt Nominal Width
PTBN	200 P2M	- 060

General Information - Timing Belts

Timing Belt Selection Details

- Material: chloroprene rubber (neoprene), polyurethane (PU)

- Tension cord: glass fibre, aramid fibre, steel

- Width (mm): 1 to 101.6

- Width (in.): 0.19 to 4

- Profile (metric): T5, T10, AT5, AT10, S2M, S3M, S5M, S8M, S14M, MTS8M, EV5GT, EV8YU, 2GT, 3GT, MA3, MA5, MA8, P2M, P3M, P5M, P8M, UP5M, UP8M

- Profile (in.): MXL, XL, L, H

Description/Basics

Timing belts for mechanical engineering are intended for force and power transmission. Depending on the interlocking of the profile, they can alternatively be used for the material flow (transportation) or for positioning.
Timing belts are more maintenance-friendly, efficient and durable compared to roller chains.

Maintenance-friendly: timing belts do not require lubrication, are easy to replace and are very durable, as they do not sag. These properties significantly reduce maintenance costs.

Efficient: drive belts are largely made of natural rubber or polyurethane. As a result, timing belts withstand high speeds. A further advantage of these materials is the weight reduction compared to conventional metal drives. Timing belts are also known for low-noise running and contribute to the general smooth running of an application.

Durability: due to the inserted tension cord made of glass fibre or aramid fibre (Kevlar), timing belts can withstand high tensile stresses and do not tend to sag. An additional layer of nylon fabric on the interlocked side reduces wear due to abrasion and increases the service life.

Timing belts can be used in many ways. The belt profile that suits your application depends on the task of the timing belt. MISUMI offers a suitable belt profile for almost every type of application.

Drive: timing belts are used even at high torque. Drive belts with a rounded trapezoidal profile (e.g., S8M) are often used to drive mechanical components. These are particularly well suited for slip-free transmission of high forces, which can occur in drives of various applications or machines.

Positioning: a semi-circular profile (e.g., GT) is often used for positioning via timing belts. Round profile timing belts are often used in 3D printers and precise scanners. The round shape also offers the advantage that there is little play (reverse play) when the direction changes.

Material flow: timing belts can also be used to transport loads in conveyor systems. A straight trapezoidal profile is often used for this purpose (e.g., AT ). This profile provides a large profile area for load intake and transmission. The MISUMI range also includes conveyor timing belts with nylon fabric on the bearing surface.

An overview of the profile forms by application type can be found in the PDF Overview.

The amount of transmission power depends on many factors. The exact maximum load must be considered and calculated individually according to the application. The calculation for timing belts can be found in the selection of Timing Belts as PDF.
In order not to fall below the minimum number of teeth, the minimum size of the timing pulleys should be considered individually.
In general, a timing belt should be provided with the appropriate pretension to maximize the service life of the timing belt. If the pretension is too low, a jump (slip) can cause wear of the timing belt.

Application Examples - Timing Belts

Application example: synchronous belt - with screw-on terminal and drive belt - synchronous belt for positioning

Application example: workpiece carrier
(1) Stopper bolt with rubber, (2) belt conveyor, (3) workpiece carrier

Application example: synchronous belt drive - synchronous pulley with crimp disc - idler pulley with crimp disc - synchronous tensioner

Application example: of toothed belt drives
(1) Toothed belt, (2) driven Timing pulleys with crimp disc, (3) idler pulley with crimp disc, (4) driving Timing pulleys with crimp disc

Application example: Timing belt
(1) Linear guide, (2) mounting plate, (3) Timing belt, (4) Screw-on terminal

Application example - linear ball bushing and linear shaft synchronous belt - synchronous belt with flange bearings

Application example: Timing belt
(1) Bolt-on terminal, (2) Timing belt, (3) Linear shaft, (4) Linear bushings

Industrial Applications

3D printer industry

Automotive industry

Pharmaceutical industry

Packaging industry

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Part Number
PTBN570P5M-150
PTBN575P5M-100
PTBN575P5M-150
PTBN576P2M-060
PTBN584P8M-150
PTBN584P8M-250
PTBN588P3M-100
PTBN588P3M-150
PTBN590P2M-060
PTBN595P5M-100
PTBN595P5M-150
PTBN600P2M-060
PTBN600P3M-100
PTBN600P3M-150
PTBN600P5M-100
PTBN600P5M-150
PTBN600P8M-150
PTBN600P8M-250
PTBN605P5M-100
PTBN605P5M-150
PTBN625P5M-100
PTBN625P5M-150
PTBN630P2M-060
PTBN632P8M-150
PTBN632P8M-250
PTBN633P3M-100
PTBN633P3M-150
PTBN635P5M-100
PTBN635P5M-150
PTBN638P2M-060
PTBN640P8M-150
PTBN640P8M-250
PTBN645P5M-100
PTBN645P5M-150
PTBN650P5M-100
PTBN650P5M-150
PTBN656P2M-060
PTBN656P8M-150
PTBN656P8M-250
PTBN660P3M-100
PTBN660P3M-150
PTBN670P5M-100
PTBN670P5M-150
PTBN675P3M-100
PTBN675P3M-150
PTBN675P5M-100
PTBN675P5M-150
PTBN676P2M-060
PTBN680P2M-060
PTBN680P8M-150
PTBN680P8M-250
PTBN681P3M-100
PTBN681P3M-150
PTBN690P5M-100
PTBN690P5M-150
PTBN693P3M-100
PTBN693P3M-150
PTBN695P5M-100
PTBN695P5M-150
PTBN699P3M-100

Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	RoHS	Belt Type	Belt Width (mm) (mm)	Circumference Length (mm)	Number of Teeth (Teeth)
23.78 € 11.41 €	1	Available	Same day Stock	10	P5M	15	570	114
15.44 €	1	Available	7 Days	10	P5M	10	575	115
23.92 €	1	Available	7 Days	10	P5M	15	575	115
7.70 €	1	Available	7 Days	10	P2M	6	576	288
25.44 €	1	Available	7 Days	10	P8M	15	584	73
41.76 €	1	Available	7 Days	10	P8M	25	584	73
11.39 €	1	Available	7 Days	10	P3M	10	588	196
18.48 €	1	Available	7 Days	10	P3M	15	588	196
7.70 €	1	Available	7 Days	10	P2M	6	590	295
15.55 €	1	Available	7 Days	10	P5M	10	595	119
24.16 €	1	Available	7 Days	10	P5M	15	595	119
7.70 €	1	Available	7 Days	10	P2M	6	600	300
11.77 €	1	Available	7 Days	10	P3M	10	600	200
18.60 €	1	Available	7 Days	10	P3M	15	600	200
15.55 €	1	Available	7 Days	10	P5M	10	600	120
24.43 €	1	Available	7 Days	10	P5M	15	600	120
25.82 €	1	Available	7 Days	10	P8M	15	600	75
42.78 €	1	Available	7 Days	10	P8M	25	600	75
15.69 €	1	Available	7 Days	10	P5M	10	605	121
24.53 €	1	Available	7 Days	10	P5M	15	605	121
15.94 €	1	Available	7 Days	10	P5M	10	625	125
24.53 €	1	Available	7 Days	10	P5M	15	625	125
7.84 €	1	Available	7 Days	10	P2M	6	630	315
26.70 €	1	Available	7 Days	10	P8M	15	632	79
44.03 €	1	Available	29 Days	10	P8M	25	632	79
12.13 €	1	Available	7 Days	10	P3M	10	633	211
19.35 €	1	Available	7 Days	10	P3M	15	633	211
15.94 €	1	Available	7 Days	10	P5M	10	635	127
24.79 €	1	Available	7 Days	10	P5M	15	635	127
7.84 €	1	Available	7 Days	10	P2M	6	638	319
26.83 €	1	Available	7 Days	10	P8M	15	640	80
44.28 €	1	Available	7 Days	10	P8M	25	640	80
16.32 €	1	Available	7 Days	10	P5M	10	645	129
25.17 €	1	Available	7 Days	10	P5M	15	645	129
16.32 €	1	Available	7 Days	10	P5M	10	650	130
25.44 €	1	Available	7 Days	10	P5M	15	650	130
7.97 €	1	Available	7 Days	10	P2M	6	656	328
27.45 €	1	Available	7 Days	10	P8M	15	656	82
45.30 €	1	Available	7 Days	10	P8M	25	656	82
12.27 €	1	Available	7 Days	10	P3M	10	660	220
19.73 €	1	Available	7 Days	10	P3M	15	660	220
16.70 €	1	Available	7 Days	10	P5M	10	670	134
25.69 €	1	Available	7 Days	10	P5M	15	670	134
12.40 €	1	Available	7 Days	10	P3M	10	675	225
20.00 €	1	Available	7 Days	10	P3M	15	675	225
16.83 €	1	Available	7 Days	10	P5M	10	675	135
25.69 €	1	Available	7 Days	10	P5M	15	675	135
8.10 €	1	Available	7 Days	10	P2M	6	676	338
8.10 €	1	Available	7 Days	10	P2M	6	680	340
28.09 €	1	Available	7 Days	10	P8M	15	680	85
46.57 €	1	Available	7 Days	10	P8M	25	680	85
12.40 €	1	Available	7 Days	10	P3M	10	681	227
20.00 €	1	Available	7 Days	10	P3M	15	681	227
16.83 €	1	Available	7 Days	10	P5M	10	690	138
25.82 €	1	Available	7 Days	10	P5M	15	690	138
12.65 €	1	Available	7 Days	10	P3M	10	693	231
20.25 €	1	Available	7 Days	10	P3M	15	693	231
16.95 €	1	Available	7 Days	10	P5M	10	695	139
25.82 €	1	Available	7 Days	10	P5M	15	695	139
12.78 €	1	Available	7 Days	10	P3M	10	699	233

Back to the Category Timing Belt

Technical Drawing - Timing Belts

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Specification Tables - Timing Belts

Type	Pitch	L	H	h	PLD	r	Unit Mass g/m (Width: 10mm)
P2M	2	1.30	1.3	0.73	0.254	0.2	14.0
P3M	3	1.95	2.1	1.09	0.381	0.3	22.0
P5M	5	3.25	3.6	1.81	0.571	0.5	41.0
P8M	8	5.20	5.5	2.90	0.686	0.8	56.0

Operating Temp.: -25~80°C (Reference Value)
Belt Circumference Length is the length of Core Wire.
Features and Cautions Here
How to select products, >> P.2253

■Type: P2M (Pitch: 2mm)

Part Number			Number of Teeth	Belt Circumference Length (mm)	Unit Price
Type	Belt Number	Nominal Width			Nominal Width
Type	Belt Number	Nominal Width			060
PTBN	80 P2M	060 (6mm)	40	80
	84 P2M		42	84
	88 P2M		44	88
	98 P2M		49	98
	100 P2M		50	100
	112 P2M		56	112
	116 P2M		58	116
	118 P2M		59	118
	124 P2M		62	124
	126 P2M		63	126
	132 P2M		66	132
	134 P2M		67	134
	136 P2M		68	136
	140 P2M		70	140
	142 P2M		71	142
	144 P2M		72	144
	146 P2M		73	146
	152 P2M		76	152
	154 P2M		77	154
	160 P2M		80	160
	162 P2M		81	162
	166 P2M		83	166
	170 P2M		85	170
	172 P2M		86	172
	176 P2M		88	176
	180 P2M		90	180
	186 P2M		93	186
	190 P2M		95	190
	196 P2M		98	196
	200 P2M		100	200
	204 P2M		102	204
	208 P2M		104	208
	212 P2M		106	212
	214 P2M		107	214
	216 P2M		108	216
	220 P2M		110	220
	224 P2M		112	224
	230 P2M		115	230

Part Number			Number of Teeth	Belt Circumference Length (mm)	Unit Price
Type	Belt Number	Nominal Width			Nominal Width
Type	Belt Number	Nominal Width			060
PTBN	234 P2M	060 (6mm)	117	234
	236 P2M		118	236
	240 P2M		120	240
	244 P2M		122	244
	246 P2M		123	246
	250 P2M		125	250
	258 P2M		129	258
	262 P2M		131	262
	266 P2M		133	266
	270 P2M		135	270
	274 P2M		137	274
	280 P2M		140	280
	284 P2M		142	284
	290 P2M		145	290
	300 P2M		150	300
	302 P2M		151	302
	310 P2M		155	310
	318 P2M		159	318
	320 P2M		160	320
	324 P2M		162	324
	328 P2M		164	328
	330 P2M		165	330
	334 P2M		167	334
	340 P2M		170	340
	348 P2M		174	348
	354 P2M		177	354
	360 P2M		180	360
	370 P2M		185	370
	378 P2M		189	378
	380 P2M		190	380
	390 P2M		195	390
	400 P2M		200	400
	408 P2M		204	408
	416 P2M		208	416
	420 P2M		210	420
	424 P2M		212	424
	426 P2M		213	426
	434 P2M		217	434

Part Number			Number of Teeth	Belt Circumference Length (mm)	Unit Price
Type	Belt Number	Nominal Width			Nominal Width
Type	Belt Number	Nominal Width			060
PTBN	440 P2M	060 (6mm)	220	440
	448 P2M		224	448
	464 P2M		232	464
	488 P2M		244	488
	490 P2M		245	490
	500 P2M		250	500
	516 P2M		258	516
	520 P2M		260	520
	530 P2M		265	530
	560 P2M		280	560
	576 P2M		288	576
	590 P2M		295	590
	600 P2M		300	600
	630 P2M		315	630
	638 P2M		319	638
	656 P2M		328	656
	676 P2M		338	676
	680 P2M		340	680
	704 P2M		352	704
	710 P2M		355	710
	754 P2M		377	754
	764 P2M		382	764
	774 P2M		387	774
	788 P2M		394	788
	800 P2M		400	800
	808 P2M		404	808
	824 P2M		412	824
	846 P2M		423	846
	866 P2M		433	866
	898 P2M		449	898
	900 P2M		450	900
	940 P2M		470	940
	956 P2M		478	956
	992 P2M		496	992
	1040 P2M		520	1040
	1242 P2M		641	1242

■Type: P3M (Pitch: 3mm)

Part Number			Number of Teeth	Belt Circumference Length (mm)	Unit Price
Type	Belt Number	Nominal Width			Nominal Width
Type	Belt Number	Nominal Width			100	150
PTBN	120 P3M	100 (10mm) 150 (15mm)	40	120
	123 P3M		41	123
	138 P3M		46	138
	141 P3M		47	141
	144 P3M		48	144
	147 P3M		49	147
	150 P3M		50	150
	153 P3M		51	153
	159 P3M		53	159
	162 P3M		54	162
	171 P3M		57	171
	174 P3M		58	174
	177 P3M		59	177
	183 P3M		61	183
	186 P3M		62	186
	192 P3M		64	192
	195 P3M		65	195
	198 P3M		66	198
	201 P3M		67	201
	207 P3M		69	207
	210 P3M		70	210
	213 P3M		71	213
	219 P3M		73	219
	222 P3M		74	222
	225 P3M		75	225
	231 P3M		77	231
	234 P3M		78	234
	237 P3M		79	237
	240 P3M		80	240
	243 P3M		81	243
	246 P3M		82	246
	252 P3M		84	252
	255 P3M		85	255
	264 P3M		88	264
	270 P3M		90	270
	273 P3M		91	273

Part Number			Number of Teeth	Belt Circumference Length (mm)	Unit Price
Type	Belt Number	Nominal Width			Nominal Width
Type	Belt Number	Nominal Width			100	150
PTBN	276 P3M	100 (10mm) 150 (15mm)	92	276
	279 P3M		93	279
	285 P3M		95	285
	288 P3M		96	288
	291 P3M		97	291
	294 P3M		98	294
	300 P3M		100	300
	303 P3M		101	303
	306 P3M		102	306
	309 P3M		103	309
	312 P3M		104	312
	318 P3M		106	318
	330 P3M		110	330
	339 P3M		113	339
	345 P3M		115	345
	354 P3M		118	354
	360 P3M		120	360
	363 P3M		121	363
	369 P3M		123	369
	372 P3M		124	372
	384 P3M		128	384
	387 P3M		129	387
	393 P3M		131	393
	399 P3M		133	399
	402 P3M		134	402
	411 P3M		137	411
	420 P3M		140	420
	423 P3M		141	423
	432 P3M		144	432
	447 P3M		149	447
	450 P3M		150	450
	453 P3M		151	453
	459 P3M		153	459
	477 P3M		159	477
	483 P3M		161	483
	486 P3M		162	486

Part Number			Number of Teeth	Belt Circumference Length (mm)	Unit Price
Type	Belt Number	Nominal Width			Nominal Width
Type	Belt Number	Nominal Width			100	150
PTBN	489 P3M	100 (10mm) 150 (15mm)	163	489
	501 P3M		167	501
	504 P3M		168	504
	507 P3M		169	507
	510 P3M		170	510
	525 P3M		175	525
	537 P3M		179	537
	552 P3M		184	552
	561 P3M		187	561
	588 P3M		196	588
	600 P3M		200	600
	633 P3M		211	633
	660 P3M		220	660
	675 P3M		225	675
	681 P3M		227	681
	693 P3M		231	693
	699 P3M		233	699
	738 P3M		246	738
	753 P3M		251	753
	756 P3M		252	756
	789 P3M		263	789
	804 P3M		268	804
	852 P3M		284	852
	861 P3M		287	861
	879 P3M		293	879
	891 P3M		297	891
	918 P3M		306	918
	933 P3M		311	933
	948 P3M		316	948
	957 P3M		319	957
	1005 P3M		335	1005
	1023 P3M		341	1023
	1041 P3M		347	1041
	1050 P3M		350	1050
	1191 P3M		397	1191		-

■Type: P5M (Pitch: 5mm)

Part Number			Number of Teeth	Belt Circumference Length (mm)	Unit Price
Type	Belt Number	Nominal Width			Nominal Width
Type	Belt Number	Nominal Width			100	150
PTBN	215 P5M	100 (10mm) 150 (15mm)	43	215
	225 P5M		45	225
	255 P5M		51	255
	260 P5M		52	260
	275 P5M		55	275
	295 P5M		59	295
	300 P5M		60	300
	310 P5M		62	310
	320 P5M		64	320
	325 P5M		65	325
	340 P5M		68	340
	350 P5M		70	350
	370 P5M		74	370
	375 P5M		75	375
	400 P5M		80	400
	420 P5M		84	420
	425 P5M		85	425
	430 P5M		86	430
	440 P5M		88	440
	450 P5M		90	450
	475 P5M		95	475
	490 P5M		98	490
	500 P5M		100	500
	515 P5M		103	515
	520 P5M		104	520
	525 P5M		105	525
	530 P5M		106	530
	550 P5M		110	550
	555 P5M		111	555
	560 P5M		112	560
	565 P5M		113	565
	570 P5M		114	570
	575 P5M		115	575
	595 P5M		119	595

Part Number			Number of Teeth	Belt Circumference Length (mm)	Unit Price
Type	Belt Number	Nominal Width			Nominal Width
Type	Belt Number	Nominal Width			100	150
PTBN	600 P5M	100 (10mm) 150 (15mm)	120	600
	605 P5M		121	605
	625 P5M		125	625
	635 P5M		127	635
	645 P5M		129	645
	650 P5M		130	650
	670 P5M		134	670
	675 P5M		135	675
	690 P5M		138	690
	695 P5M		139	695
	700 P5M		140	700
	710 P5M		142	710
	725 P5M		145	725
	730 P5M		146	730
	740 P5M		148	740
	750 P5M		150	750
	765 P5M		153	765
	780 P5M		156	780
	800 P5M		160	800
	810 P5M		162	810
	830 P5M		166	830
	835 P5M		167	835
	850 P5M		170	850
	865 P5M		173	865
	900 P5M		180	900
	905 P5M		181	905
	940 P5M		188	940
	950 P5M		190	950
	965 P5M		193	965
	985 P5M		197	985
	1000 P5M		200	1000
	1025 P5M		205	1025
	1050 P5M		210	1050

■Type: P8M (Pitch: 8mm)

Part Number			Number of Teeth	Belt Circumference Length (mm)	Unit Price
Type	Belt Number	Nominal Width			Nominal Width
Type	Belt Number	Nominal Width			150	250
PTBN	376 P8M	150 (15mm) 250 (25mm)	47	376
	392 P8M		49	392
	440 P8M		55	440
	480 P8M		60	480
	512 P8M		64	512
	520 P8M		65	520
	536 P8M		67	536
	560 P8M		70	560
	584 P8M		73	584
	600 P8M		75	600
	632 P8M		79	632
	640 P8M		80	640
	656 P8M		82	656
	680 P8M		85	680
	712 P8M		89	712
	720 P8M		90	720
	752 P8M		94	752
	760 P8M		95	760
	800 P8M		100	800
	832 P8M		104	832
	840 P8M		105	840
	848 P8M		106	848
	856 P8M		107	856
	880 P8M		110	880
	896 P8M		112	896
	912 P8M		114	912
	920 P8M		115	920
	936 P8M		117	936
	944 P8M		118	944
	960 P8M		120	960
	984 P8M		123	984
	1000 P8M		125	1000
	1040 P8M		130	1040
	1056 P8M		132	1056
	1080 P8M		135	1080
	1192 P8M		149	1192		-
	1440 P8M		180	1440	-
	2064 P8M		258	2064		-
	2496 P8M		312	2496		-
	2600 P8M		325	2600		-
	2800 P8M		350	2800		-
	3048 P8M		381	3048		-
	3200 P8M		400	3200		-

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Basic information

Belt shape	Closed End	Belt tooth surface	Standard (Single Sided)	Belt material	Rubber Belt
Core Wire Material	Glass Fiber	Belt-shaped type	Circular Tooth Profile PX Belt	Transmission torque	High Torque Transmission

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Basic Attributes

Belt Type
- P2M
- P3M
- P5M
- P8M
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Belt Width (mm)(mm)
6

10

15

25
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Circumference Length(mm)
80

84

88

98

100

112

116

118

120

123

124

126

132

134

136

138

140

141

142

144

146

147

150

152

153

154

159

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162

166

170

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222

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240

243

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252

255

258

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262

264

266

270

273

274

275

276

279

280

284

285

288

290

291

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300

302

303

306

309

310

312

318

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324

325

328

330

334

339

340

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369

370

372

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387

390

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400

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411

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440

447

448

450

453

459

464

475

477

480

483

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490

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501

504

507

510

512

515

516

520

525

530

536

537

550

552

555

560

561

565

570

575

576

584

588

590

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630

632

633

635

638

640

645

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656

660

670

675

676

680

681

690

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700

704

710

712

720

725

730

738

740

750

752

753

754

756

760

764

765

774

780

788

789

800

804

808

810

824

830

832

835

840

846

848

850

852

856

861

865

866

879

880

891

896

898

900

905

912

918

920

933

936

940

944

948

950

956

957

960

965

984

985

992

1000

1005

1023

1025

1040

1041

1050

1056

1080

1191

1192

1242

1440

2064

2496

2600

2800

3048

3200
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Number of Teeth(Teeth)
40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

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75

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77

78

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80

81

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83

84

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97

98

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104

105

106

107

108

110

111

112

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114

115

117

118

119

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121

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124

125

127

128

129

130

131

132

133

134

135

137

138

139

140

141

142

144

145

146

148

149

150

151

153

155

156

159

160

161

162

163

164

165

166

167

168

169

170

173

174

175

177

179

180

181

184

185

187

188

189

190

193

195

196

197

200

204

205

208

210

211

212

213

217

220

224

225

227

231

232

233

244

245

246

250

251

252

258

260

263

265

268

280

284

287

288

293

295

297

300

306

311

312

315

316

319

325

328

335

338

340

341

347

350

352

355

377

381

382

387

394

397

400

404

412

423

433

449

450

470

478

496

520

621
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Type
- PTBN□□P2M
- PTBN□□P3M
- PTBN□□P5M
- PTBN□□P8M
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- 2D
- 3D
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Optional Attributes

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

Frequently Asked Questions (FAQ)

Question:
Where does the idler pulleys have to be placed on the timing belt?: Answer:
As a rule, the idler pulleys are positioned on the slack side, since the tension of the timing belt is here lowest during operation. Ideally, the timing belt is tensioned from the inside, because this prevents the timing belt from bending alternately. This is particularly recommended for timing belts with a steel tension cord. The idler pulley should always be larger than the smallest timing pulley of the belt drive system.
Question:
For what purpose can a timing belt with a round profile be used for?: Answer:
Round profile timing belts can be used in many applications. These are well suited for transmitting torque. In addition, the reverse play is very low due to the round profile shape with changing direction of rotation. The timing belts are also well suited for highly precise positioning. Timing belts with a round tooth profile can therefore often be found in 3D printers.
Question:
Can multiple belts be used for the transfer?: Answer:
A transmission can take place via one or more timing belts. If an equal distribution of the forces across the individual belts is not possible, it must be ensured that one belt alone can withstand the maximum load. In order to enable uniform distribution of forces, a precise adjustment is necessary. For this purpose, a toothed belt disc with clamping sleeve can be used, because it can be adjusted continuously and ensure uniform distribution.
Question:
Can a timing belt used for transmission?: Answer:
With timing belts, a gear ratio or reduction in a drive is possible. The gear ratio is established based on the number of teeth on the pulleys. It should be ensured that the minimum number of teeth of the timing pulley disc is not undercut.
Question:
What is the possible tensile stress for timing belts?: Answer:
The maximum allowable tension for MISUMI timing belts depends on the belt type, speed of rotation and belt pulley diameter. For more information, click on this link.
Question:
What is the minimum size of timing pulleys?: Answer:
The minimum size or the minimum number of teeth of a timing pulley depends on the belt type used and the height of the applied speed or rotation. You can find more detailed information about the minimum number of teeth of timing pulley discs in the selection of Timing Pulleys available as a PDF.
Question:
Does a timing belt stretch a lot?: Answer:
As opposed to a roller chain, the expansion is small. The length extension of timing belts is very stable. Therefore, it is not absolutely necessary to re-tension the timing belt during operation, as is necessary for chain drives. This makes the timing belt very easy to maintain compared to the chain. However, it should be ensured that the timing belt is free of oil, as the natural rubber could swell.
Question:
What is the purpose of a timing belt?: Answer:
The primary task of a timing belt is the synchronous and slip-free transmission of force or power. Depending on the task, various profile shapes are available for timing belts. These can be roughly divided into drive, conveying and positioning. In the following overview, you can view the various areas of use: Overview as PDF