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Timing belts / S#M / PUR, CR / glass fibre, aramid, steel (HTBN1680S8M-250)

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Promotional pricing ends 30/11/2024
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MISUMI

Product Details:

Manufacturer part number: HTBN1680S8M-250

Brand: MISUMI

Price: 89.58 €

Delivery time: 7 Days

Technical Data:

Belt material: Rubber Belt

Core Wire Material: [Glass Fiber] Glass Fiber

Belt Type: S8M

Belt Width (mm): 25 mm

Circumference Length: 1680 mm

Part Number

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HTBN1680S8M-250

Drawing / Specifications
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Part Numbers
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Technical Information

Back to the Category Timing Belt

Technical Drawing - Timing Belts

High Torque Timing Belts - S2M, S3M, S5M, S8M, S14M:Related Image

Open the technical drawing in the new window

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

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

Type	Material
HTBN	Back Rubber	Chloroprene Rubber
	Tooth Rubber	Chloroprene Rubber
	Core Wire	Fiberglass Cord S/Z Alternately Twisted Continuous
	Tooth Fabric	Nylon Cloth
HTUN	Main Body	Polyurethane
HTUN	Core Wire	Aramid Fiber

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
HTBN HTUN	2800 S14M 225 S3M	- -	400 100

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

Part Number:

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Part Number
HTBN1680S8M-250

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	RoHS	Belt material	Core Wire Material	Belt Type	Belt Width (mm) (mm)	Circumference Length (mm)	Number of Teeth (Teeth)
	89.58 €	1	Available	7 Days	10	Rubber Belt	[Glass Fiber] Glass Fiber	S8M	25	1680	210

Back to the Category Timing Belt

Technical Drawing - Timing Belts

Open the technical drawing in the new window

Specification Tables - Timing Belts

Type	Pitch	Ra	Lr	H	h	i	PLD	Unit Mass g/m (Width: 10mm)
S2M	2	1.3	1.3	1.36	0.76	0.6	0.254	13.0(11.0)
S3M	3	1.95	1.95	1.94	1.14	0.8	0.381	19.0(15.0)
S5M	5	3.25	3.25	3.41	1.91	1.5	0.480	34.0
S8M	8	5.2	5.2	5.3	3.05	2.25	0.686	52.0
S14M	14	9.1	9.1	10.2	5.3	4.9	1.397	100.0

Values in ( ) are the unit mass of polyurethane.
Operating Temp. Rubber: -30~90°C, Polyurethane: 0~80°C (Reference Value)
Although some tooth fabrics for S2M, S3M and S5M rubber belts (HTBN) are changed from black to brown to prevent rubber-dust generation, it does not affect the performance.
HTBN has no groove between teeth. (* Marked Parts)
Belt Circumference Length is the length of Core Wire.
HTUN - Polyurethane Type - cannot be used with tension from back side.
Features and Cautions Here How to select products, >> P.2253.

■Type: S2M (Pitch: 2mm)

Part Number			Number of Teeth	Belt Circumference Length (mm)	Unit Price
Type	Belt Number	Belt Nominal Width			HTBN			HTUN
Type	Belt Number	Belt Nominal Width			40	60	100	40	60	100
HTBN (Rubber) HTUN (Polyurethane)	76 S2M	40 (4mm) 60 (6mm) 100 (10mm)	38	76				-	-	-
	78 S2M		39	78				-	-	-
	80 S2M		40	80
	88 S2M		44	88				-	-	-
	90 S2M		45	90						-
	100 S2M		50	100
	112 S2M		56	112
	116 S2M		58	116				-	-	-
	118 S2M		59	118
	122 S2M		61	122
	124 S2M		62	124
	126 S2M		63	126						-
	128 S2M		64	128				-	-
	130 S2M		65	130
	132 S2M		66	132
	134 S2M		67	134
	138 S2M		69	138
	140 S2M		70	140
	142 S2M		71	142				-	-	-
	144 S2M		72	144
	152 S2M		76	152				-	-	-
	160 S2M		80	160
	164 S2M		82	164
	166 S2M		83	166
	172 S2M		86	172
	176 S2M		88	176				-	-	-
	180 S2M		90	180
	186 S2M		93	186				-	-	-
	190 S2M		95	190
	194 S2M		97	194
	200 S2M		100	200
	204 S2M		102	204				-	-	-
	210 S2M		105	210
	212 S2M		106	212
	214 S2M		107	214				-	-	-
	218 S2M		109	218	-	-	-
	220 S2M		110	220
	224 S2M		112	224
	230 S2M		115	230
	234 S2M		117	234				-	-	-
	236 S2M		118	236
	240 S2M		120	240	-	-	-
	242 S2M		121	242	-	-	-
	244 S2M		122	244
	246 S2M		123	246
	250 S2M		125	250
	256 S2M		128	256				-	-	-
	260 S2M		130	260	-	-	-
	266 S2M		133	266				-	-	-
	280 S2M		140	280
	290 S2M		145	290
	300 S2M		150	300				-	-	-
	320 S2M		160	320
	324 S2M		162	324				-	-	-
	328 S2M		164	328				-	-	-
	330 S2M		165	330
	340 S2M		170	340				-	-	-
	360 S2M		180	360
	370 S2M		185	370
	380 S2M		190	380				-	-	-
	396 S2M		198	396	-	-	-
	400 S2M		200	400				-	-	-
	436 S2M		218	436
	448 S2M		224	448
486 S2M	243	486	-	-	-
488 S2M	244	488	-	-	-
500 S2M	250	500				-	-	-
520 S2M	260	520
560 S2M	280	560
572 S2M	286	572			-
580 S2M	290	580	-	-	-
600 S2M	300	600				-	-	-
630 S2M	315	630
710 S2M	355	710				-	-	-
800 S2M	400	800
900 S2M	450	900				-	-	-
984 S2M	492	984
1196 S2M	598	1196
1250 S2M	625	1250
1274 S2M	637	1274
1290 S2M	645	1290				-	-	-

■Type: S3M (Pitch: 3mm)

Part Number			Number of Teeth	Belt Circumference Length (mm)	Unit Price
Type	Belt Number	Belt Nominal Width			HTBN			HTUN
Type	Belt Number	Belt Nominal Width			60	100	150	60	100	150
HTBN (Rubber) HTUN (Polyurethane)	120 S3M	60 (6mm) 100 (10mm) 150 (15mm)	40	120				-	-	-
	123 S3M		41	123			-
	129 S3M		43	129
	141 S3M		47	141
	144 S3M		48	144
	150 S3M		50	150				-	-
	162 S3M		54	162
	171 S3M		57	171				-	-	-
	174 S3M		58	174
	177 S3M		59	177
	180 S3M		60	180
	186 S3M		62	186
	189 S3M		63	189			-	-	-	-
	192 S3M		64	192
	195 S3M		65	195				-	-
	201 S3M		67	201
	207 S3M		69	207				-	-	-
	210 S3M		70	210
	213 S3M		71	213
	219 S3M		73	219
	222 S3M		74	222				-	-	-
	225 S3M		75	225
	234 S3M		78	234				-	-
	237 S3M		79	237				-	-
	246 S3M		82	246
	249 S3M		83	249	-	-	-
	252 S3M		84	252
	255 S3M		85	255
	264 S3M		88	264
	273 S3M		91	273				-	-	-
	276 S3M		92	276
	279 S3M		93	279				-	-	-
	285 S3M		95	285
	288 S3M		96	288
	291 S3M		97	291
	300 S3M		100	300
	312 S3M		104	312
	318 S3M		106	318
	327 S3M		109	327	-	-	-
	339 S3M		113	339				-	-	-
	345 S3M		115	345
	354 S3M		118	354				-	-	-
	360 S3M		120	360	-	-	-
	363 S3M		121	363
	369 S3M		123	369
	375 S3M		125	375
	384 S3M		128	384				-	-	-
	387 S3M		129	387
	396 S3M		132	396				-	-	-
	402 S3M		134	402	-	-	-
	405 S3M		135	405
	408 S3M		136	408
	420 S3M		140	420
	423 S3M		141	423				-	-	-
	432 S3M		144	432
	453 S3M		151	453
	456 S3M		152	456				-	-	-
	459 S3M		153	459				-	-	-
	474 S3M		158	474
	480 S3M		160	480				-	-	-
	483 S3M		161	483
	486 S3M		162	486				-	-	-
	501 S3M		167	501
	507 S3M		169	507				-	-	-
519 S3M	173	519
525 S3M	175	525	-	-				-
537 S3M	179	537
540 S3M	180	540
564 S3M	188	564	-	-	-
591 S3M	197	591
600 S3M	200	600
612 S3M	204	612				-	-	-
633 S3M	211	633
645 S3M	215	645
660 S3M	220	660				-	-	-
681 S3M	227	681	-	-	-
741 S3M	247	741
750 S3M	250	750
804 S3M	268	804				-	-	-
810 S3M	270	810
852 S3M	284	852
900 S3M	300	900
918 S3M	306	918
1050 S3M	350	1050
1080 S3M	360	1080				-	-	-
1119 S3M	373	1119
1170 S3M	390	1170
1203 S3M	401	1203
1221 S3M	407	1221
1236 S3M	412	1236
1245 S3M	415	1245
1260 S3M	420	1260
1290 S3M	430	1290
1299 S3M	433	1299				-	-	-
1332 S3M	444	1332
1401 S3M	467	1401
1596 S3M	532	1596
1680 S3M	560	1680
1788 S3M	596	1788
2100 S3M	700	2100

■Type: S5M (Pitch: 5mm)

Part Number			Number of Teeth	Belt Circumference Length (mm)	Unit Price
Type	Belt	Belt Nominal Width			HTBN
Type	Number	Belt Nominal Width			100	150	250
HTBN (Rubber)	225 S5M	100 (10mm) 150 (15mm) 250 (25mm)	45	225
	230 S5M		46	230
	255 S5M		51	255
	260 S5M		52	260
	295 S5M		59	295
	300 S5M		60	300
	305 S5M		61	305
	320 S5M		64	320
	325 S5M		65	325
	340 S5M		68	340
	350 S5M		70	350
	360 S5M		72	360
	370 S5M		74	370
	375 S5M		75	375
	380 S5M		76	380
	390 S5M		78	390
	400 S5M		80	400
	415 S5M		83	415
	425 S5M		85	425
	435 S5M		87	435
	440 S5M		88	440
	450 S5M		90	450
	475 S5M		95	475
	490 S5M		98	490
	500 S5M		100	500
	520 S5M		104	520
	525 S5M		105	525
	530 S5M		106	530
	545 S5M		109	545
	550 S5M		110	550
	560 S5M		112	560
	575 S5M		115	575
	590 S5M		118	590
	595 S5M		119	595
	600 S5M		120	600
	625 S5M		125	625
	640 S5M		128	640
	650 S5M		130	650
	665 S5M		133	665
	670 S5M		134	670
	675 S5M		135	675
	690 S5M		138	690
	695 S5M		139	695
	700 S5M		140	700
	710 S5M		142	710
	720 S5M		144	720
	725 S5M		145	725
	730 S5M		146	730
	740 S5M		148	740
	750 S5M		150	750
	765 S5M		153	765
	780 S5M		156	780
	800 S5M		160	800
	810 S5M		162	810
	830 S5M		166	830
	845 S5M		169	845
	850 S5M		170	850
	870 S5M		174	870
	890 S5M		178	890
	900 S5M		180	900
	930 S5M		186	930
	950 S5M		190	950
	975 S5M		195	975
	1000 S5M		200	1000
1025 S5M	205	1025
1050 S5M	210	1050
1055 S5M	211	1055
1085 S5M	217	1085
1090 S5M	218	1090
1100 S5M	220	1100
1105 S5M	221	1105		-
1115 S5M	223	1115
1120 S5M	224	1120
1125 S5M	225	1125
1135 S5M	227	1135
1145 S5M	229	1145
1160 S5M	232	1160
1165 S5M	233	1165
1195 S5M	239	1195
1225 S5M	245	1225
1250 S5M	250	1250
1270 S5M	254	1270
1295 S5M	259	1295
1350 S5M	270	1350
1420 S5M	284	1420
1475 S5M	295	1475
1500 S5M	300	1500
1505 S5M	301	1505
1530 S5M	306	1530
1595 S5M	319	1595
1605 S5M	321	1605
1680 S5M	336	1680
1715 S5M	343	1715
1800 S5M	360	1800
2000 S5M	400	2000
2145 S5M	429	2145
2255 S5M	451	2255
2480 S5M	496	2480

■Type: S8M (Pitch: 8mm)

Part Number			Number of Teeth	Belt Circumference Length (mm)	Unit Price
Type	Belt Number	Belt Nominal Width			HTBN
Type	Belt Number	Belt Nominal Width			150	250	300	400
HTBN (Rubber)	480 S8M	150 (15mm) 250 (25mm) 300 (30mm) 400 (40mm)	60	480
	520 S8M		65	520
	560 S8M		70	560
	584 S8M		73	584
	600 S8M		75	600
	632 S8M		79	632
	656 S8M		82	656
	712 S8M		89	712
	720 S8M		90	720
	760 S8M		95	760
	800 S8M		100	800
	824 S8M		103	824
	848 S8M		106	848
	880 S8M		110	880
	896 S8M		112	896
	920 S8M		115	920
	944 S8M		118	944
	960 S8M		120	960
	976 S8M		122	976
	1000 S8M		125	1000
	1040 S8M		130	1040
	1056 S8M		132	1056
	1080 S8M		135	1080
	1120 S8M		140	1120
	1136 S8M		142	1136
	1160 S8M		145	1160
	1200 S8M		150	1200
	1248 S8M		156	1248
	1280 S8M		160	1280
	1304 S8M		163	1304
	1360 S8M		170	1360
	1400 S8M		175	1400
	1440 S8M		180	1440
	1480 S8M		185	1480
	1520 S8M		190	1520
	1600 S8M		200	1600
	1680 S8M		210	1680
	1760 S8M		220	1760
	1800 S8M		225	1800
	1912 S8M		239	1912
	2000 S8M		250	2000
	2240 S8M		280	2240
	2304 S8M		288	2304
	2400 S8M		300	2400
	2496 S8M		312	2496
	2600 S8M		325	2600
	2800 S8M		350	2800
	3200 S8M		400	3200
	3680 S8M		460	3680
	4400 S8M		550	4400

■Type: S14M (Pitch: 14mm)

Part Number			Number of Teeth	Belt Circumference Length (mm)	Unit Price
Type	Belt Number	Belt Nominal Width			HTBN
Type	Belt Number	Belt Nominal Width			400	600
HTBN (Rubber)	1008 S14M	400 (40mm) 600 (60mm)	72	1008
	1120 S14M		80	1120
	1190 S14M		85	1190
	1246 S14M		89	1246
	1400 S14M		100	1400
	1540 S14M		110	1540
	1610 S14M		115	1610
	1652 S14M		118	1652
	1778 S14M		127	1778
	1806 S14M		129	1806
	1890 S14M		135	1890
	2100 S14M		150	2100
	2310 S14M		165	2310
	2450 S14M		175	2450
	2590 S14M		185	2590
	2660 S14M		190	2660
	2800 S14M		200	2800
	3500 S14M		250	3500
	3850 S14M		275	3850
	4508 S14M		322	4508
	5012 S14M		358	5012

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Basic information

Belt shape	Closed End	Belt tooth surface	Standard (Single Sided)	Belt-shaped type	Round Tooth Profile Super Torque
Transmission torque	High Torque Transmission

This page is Timing belts / S#M / PUR, CR / glass fibre, aramid, steel, part number HTBN1680S8M-250.
You can find the detail information about specifications and dimensions on part number HTBN1680S8M-250.

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Basic Attributes

Type
- HTBN□□S14M
- HTBN□□S2M
- HTBN□□S3M
- HTBN□□S5M
- HTBN□□S8M
- HTUN□□S2M
- HTUN□□S3M
Clear
Belt material
- Rubber Belt
- Polyurethane Belt
Clear
Core Wire Material
- Glass Fiber
  - Glass Fiber
- Aramid
  - Aramid
Clear
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- S2M
- S3M
- S5M
- S8M
- S14M
Clear
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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

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Variation of this product

Part Number
HTBN1000S8M-150
HTBN1000S8M-250
HTBN1000S8M-300
HTBN1680S8M-300
HTBN1680S8M-400
HTBN1715S5M-100

Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	RoHS	Belt material	Core Wire Material	Belt Type	Belt Width (mm) (mm)	Circumference Length (mm)	Number of Teeth (Teeth)
34.79 €	1	Available	7 Days	10	Rubber Belt	[Glass Fiber] Glass Fiber	S8M	15	1000	125
58.08 €	1	Available	7 Days	10	Rubber Belt	[Glass Fiber] Glass Fiber	S8M	25	1000	125
71.10 €	1	Available	7 Days	10	Rubber Belt	[Glass Fiber] Glass Fiber	S8M	30	1000	125
107.56 €	1	Available	7 Days	10	Rubber Belt	[Glass Fiber] Glass Fiber	S8M	30	1680	210
143.36 €	1	Available	7 Days	10	Rubber Belt	[Glass Fiber] Glass Fiber	S8M	40	1680	210
24.30 €	1	Available	7 Days	10	Rubber Belt	[Glass Fiber] Glass Fiber	S5M	10	1715	343