2M Timing Belt 52-3000mm, 2mm 4/6/9/12mm CR, Printer & Vacuum Supplier

Product Overview

The HTD 2M synchronous belt (also called the HTD 2M timing belt) is the smallest-pitch member of the HTD (High Torque Drive) curvilinear tooth belt family. With a 2 mm tooth pitch it is engineered specifically for micro-sized, high-speed precision power transmission, where compact dimensions, accurate positioning and quiet running are essential.

Unlike traditional trapezoidal-tooth micro belts such as MXL, the rounded HTD tooth profile greatly reduces stress concentration at the tooth root. This allows HTD 2M belts to transmit 30% to 40% more torque than MXL belts of the same size, while running at higher speeds with lower noise.

HTD 2M belts require no lubrication, deliver near-zero backlash for precise positioning, and maintain constant speed synchronization without slip. They have become the global standard for miniature drive systems in 3D printers, small robotics, medical devices, office equipment and consumer electronics.

All belts are manufactured to ISO 13050 and are dimensionally interchangeable with industry-standard HTD 2M synchronous belt specifications, ensuring drop-in replacement for existing equipment designs.

Materials & Construction

Every HTD 2M synchronous belt is built with a proven three-layer composite structure using premium, industry-grade materials for stable dimensions and long service life in micro precision drives.

Layer	Material	Function
Tensile Cords (Backbone)	High-strength glass fiber cord; aramid (Kevlar) cord optional	Exceptional tensile strength, minimal elongation and outstanding length stability over the whole service life.
Belt Body	Premium chloroprene rubber (CR), synthetic compound with hydrogenated nitrile and multiple rubber additives	Excellent resistance to high and low temperature, oil, water, acid, alkali, ozone and flex fatigue.
Tooth Surface (Facing Fabric)	Specially treated high-elasticity nylon 66 fabric	Protects the tooth surface, reduces friction and meshing noise, and prevents tooth wear even after millions of operating cycles.

Standard Specifications

Parameter	Value	Unit
Tooth Pitch (P)	2.0	mm
Tooth Height (ht)	0.75	mm
Belt Total Thickness (hs)	1.36	mm
Tooth Profile	Curvilinear	–
Minimum Pulley Diameter	10	mm
Maximum Linear Speed	50	m/s
Maximum Operating Speed	Up to 20,000	RPM
Transmission Efficiency	Up to 98%	–
Operating Temperature Range	-30 to +90	°C

Belt Designation

HTD 2M belts use the simple metric designation: [Pitch Length]-2M. For example, 200-2M designates an HTD 2M belt with a 200 mm pitch line length. The number of teeth is obtained by dividing the pitch length by the pitch (200 ÷ 2 = 100 teeth).

HTD 2M Timing Belt tooth profile and dimension chart showing 2 mm pitch, 0.75 mm tooth height and 1.36 mm thickness

Key Advantages

Near-Zero Backlash Precision: Positioning accuracy as fine as 0.05 mm for high-precision motion control.

Ultra-High Speed: Continuous operation at up to 20,000 RPM and 50 m/s linear speed.

Low Noise: Rounded tooth shape reduces meshing impact by ~30% vs. MXL.

Higher Torque: Up to 40% higher torque capacity than MXL belts of the same size.

Maintenance-Free: No lubrication or tension adjustment needed after correct installation.

Long Service Life: 15,000–20,000 hours under proper conditions.

Global Interchangeability: Fully interchangeable with industry-standard HTD 2M synchronous belt specifications and metric 2mm pitch timing belt profiles.

Complete Model List (249 Standard Models)

All 249 standard models are available for order. Custom lengths can be manufactured on request.

Model	Length (mm)	Teeth	Model	Length (mm)	Teeth	Model	Length (mm)	Teeth
52-2M	52	26	56-2M	56	28	66-2M	66	33
70-2M	70	35	72-2M	72	36	74-2M	74	37
76-2M	76	38	78-2M	78	39	80-2M	80	40
82-2M	82	41	84-2M	84	42	86-2M	86	43
90-2M	90	45	92-2M	92	46	94-2M	94	47
96-2M	96	48	98-2M	98	49	100-2M	100	50
102-2M	102	51	104-2M	104	52	106-2M	106	53
108-2M	108	54	110-2M	110	55	112-2M	112	56
114-2M	114	57	116-2M	116	58	118-2M	118	59
120-2M	120	60	122-2M	122	61	124-2M	124	62
126-2M	126	63	128-2M	128	64	130-2M	130	65
132-2M	132	66	134-2M	134	67	136-2M	136	68
138-2M	138	69	140-2M	140	70	142-2M	142	71
150-2M	150	75	152-2M	152	76	154-2M	154	77
156-2M	156	78	158-2M	158	79	160-2M	160	80
162-2M	162	81	164-2M	164	82	166-2M	166	83
168-2M	168	84	170-2M	170	85	172-2M	172	86
174-2M	174	87	176-2M	176	88	178-2M	178	89
180-2M	180	90	182-2M	182	91	184-2M	184	92
186-2M	186	93	188-2M	188	94	190-2M	190	95
192-2M	192	96	194-2M	194	97	196-2M	196	98
198-2M	198	99	200-2M	200	100	202-2M	202	101
204-2M	204	102	206-2M	206	103	208-2M	208	104
210-2M	210	105	212-2M	212	106	214-2M	214	107
216-2M	216	108	218-2M	218	109	220-2M	220	110
224-2M	224	112	226-2M	226	113	228-2M	228	114
230-2M	230	115	232-2M	232	116	234-2M	234	117
236-2M	236	118	240-2M	240	120	242-2M	242	121
244-2M	244	122	246-2M	246	123	248-2M	248	124
250-2M	250	125	252-2M	252	126	254-2M	254	127
256-2M	256	128	258-2M	258	129	260-2M	260	130
262-2M	262	131	264-2M	264	132	266-2M	266	133
268-2M	268	134	270-2M	270	135	274-2M	274	137
276-2M	276	138	280-2M	280	140	282-2M	282	141
286-2M	286	143	288-2M	288	144	290-2M	290	145
292-2M	292	146	294-2M	294	147	296-2M	296	148
298-2M	298	149	300-2M	300	150	302-2M	302	151
304-2M	304	152	306-2M	306	153	310-2M	310	155
312-2M	312	156	320-2M	320	160	322-2M	322	161
324-2M	324	162	326-2M	326	163	328-2M	328	164
330-2M	330	165	334-2M	334	167	336-2M	336	168
338-2M	338	169	340-2M	340	170	342-2M	342	171
344-2M	344	172	348-2M	348	174	350-2M	350	175
354-2M	354	177	356-2M	356	178	360-2M	360	180
362-2M	362	181	364-2M	364	182	366-2M	366	183
368-2M	368	184	370-2M	370	185	372-2M	372	186
376-2M	376	188	380-2M	380	190	384-2M	384	192
386-2M	386	193	388-2M	388	194	392-2M	392	196
394-2M	394	197	400-2M	400	200	404-2M	404	202
406-2M	406	203	410-2M	410	205	412-2M	412	206
420-2M	420	210	428-2M	428	214	430-2M	430	215
436-2M	436	218	440-2M	440	220	450-2M	450	225
460-2M	460	230	468-2M	468	234	470-2M	470	235
476-2M	476	238	478-2M	478	239	480-2M	480	240
486-2M	486	243	488-2M	488	244	490-2M	490	245
492-2M	492	246	494-2M	494	247	500-2M	500	250
506-2M	506	253	516-2M	516	258	518-2M	518	259
520-2M	520	260	530-2M	530	265	534-2M	534	267
550-2M	550	275	556-2M	556	278	558-2M	558	279
582-2M	582	291	600-2M	600	300	604-2M	604	302
606-2M	606	303	610-2M	610	305	616-2M	616	308
622-2M	622	311	630-2M	630	315	632-2M	632	316
634-2M	634	317	636-2M	636	318	640-2M	640	320
646-2M	646	323	650-2M	650	325	656-2M	656	328
660-2M	660	330	670-2M	670	335	676-2M	676	338
686-2M	686	343	690-2M	690	345	702-2M	702	351
710-2M	710	355	726-2M	726	363	730-2M	730	365
744-2M	744	372	750-2M	750	375	752-2M	752	376
760-2M	760	380	770-2M	770	385	782-2M	782	391
800-2M	800	400	810-2M	810	405	824-2M	824	412
840-2M	840	420	848-2M	848	424	852-2M	852	426
872-2M	872	436	888-2M	888	444	890-2M	890	445
900-2M	900	450	906-2M	906	453	910-2M	910	455
928-2M	928	464	930-2M	930	465	960-2M	960	480
976-2M	976	488	1000-2M	1000	500	1040-2M	1040	520
1068-2M	1068	534	1100-2M	1100	550	1140-2M	1140	570
1142-2M	1142	571	1150-2M	1150	575	1164-2M	1164	582
1190-2M	1190	595	1200-2M	1200	600	1210-2M	1210	605
1220-2M	1220	610	1250-2M	1250	625	1272-2M	1272	636
1350-2M	1350	675	1444-2M	1444	722	1474-2M	1474	737
1500-2M	1500	750	1508-2M	1508	754	1510-2M	1510	755
1520-2M	1520	760	1524-2M	1524	762	1572-2M	1572	786
2000-2M	2000	1000	2270-2M	2270	1135	3000-2M	3000	1500

Download 2M Timing Belt Complete Size Chart & Dimensional PDF

Applications

Industrial: Desktop & industrial FDM 3D printers, small CNC routers, servo/stepper motor drives, micro robotics, medical diagnostic equipment, SMT pick-and-place machines, surveying instruments.
Commercial: High-speed office printers, document scanners, vending machines, POS terminals, commercial coffee machines, security camera pan/tilt drives.
Household: Consumer 3D printers, robot vacuums, smart appliances, electric toothbrushes, RC models, camera lens autofocus mechanisms.

Installation & Maintenance

Do not pry belts onto pulleys: Always adjust center distance instead.
Check pulley alignment: Shafts parallel within 0.5 degrees.
Calibrate proper tension: Avoid tooth skipping (too loose) or excess bearing load (too tight).
Keep belts clean: Remove oil/grease; do not use harsh chemical cleaners.
Inspect pulleys regularly: Replace if tooth wear is visible.
Open-end belt splicing: Use dedicated joining clips or vulcanized splicing.
Regular inspection: Every 6 months in high-cycle applications.

Tooth Profile Comparison

Belt Profile	Pitch	Tooth Shape	Relative Torque	Typical Applications
HTD 2M	2.0mm	Curvilinear	140% (vs MXL)	High-speed micro drives, 3D printers, medical
MXL	2.032mm	Trapezoidal	100%	Light duty office equipment
GT2	2.0mm	Curvilinear	110%	Precision 3D printers, linear motion
T2.5	2.5mm	Trapezoidal	115%	European metric light industrial
XL	5.08mm	Trapezoidal	250%	Medium light duty drives
HTD 3M	3.0mm	Curvilinear	220%	Medium power high-speed drives

Inquiry & Contact

We supply the full range of HTD 2M synchronous belts in all standard lengths, plus custom-manufactured belts.

Standard Models: 249 lengths from 52mm to 3000mm
Custom Lengths: Manufactured on request
MOQ: 100 pcs (standard), 200 pcs (custom)
Packaging: Coiled, wrapped, cartons on pallets
Delivery: Worldwide shipping

Contact us with: Model designation (e.g., 200-2M), quantity, application details, special requirements.

Frequently Asked Questions

What is an HTD 2M timing belt?

The HTD 2M synchronous belt is the smallest-pitch member of the HTD (High Torque Drive) curvilinear-tooth family. It uses a 2 mm tooth pitch, a 0.75 mm tooth height and a 1.36 mm belt thickness, and is engineered for micro-sized, high-speed precision power transmission where compact size, accurate positioning and quiet running are essential.

What is the difference between HTD 2M and MXL timing belts?

Both are micro belts, but they use different tooth profiles. MXL has a trapezoidal tooth with a 2.032 mm pitch, while HTD 2M has a rounded curvilinear tooth with a 2 mm pitch. The rounded profile reduces stress concentration at the tooth root, so an HTD 2M belt can transmit 30% to 40% more torque than an MXL belt of the same size, with quieter and faster running.

How do I read a 2M belt model number such as 200-2M?

The designation is simple: the number is the pitch line length in millimetres and 2M is the profile. So 200-2M means an HTD 2M belt with a 200 mm pitch line length. To find the number of teeth, divide the pitch length by the pitch: 200 / 2 = 100 teeth.

What widths and lengths are available?

We stock 255 standard models in widths of 4 mm, 6 mm, 9 mm and 12 mm, with pitch lengths from 52 mm to 3000 mm. Non-standard widths and custom lengths can be manufactured on request.

What is the minimum order quantity and lead time?

The minimum order quantity is 100 pieces for standard models and 200 pieces for custom sizes. Stock items ship quickly, and production lead times for custom or OEM orders are confirmed when you place your order.

What applications are HTD 2M timing belts used for?

HTD 2M belts are used for high-speed micro precision drives such as FDM 3D printers, small CNC routers, servo and stepper motor drives, micro robotics, medical diagnostic equipment, SMT pick-and-place machines, office printers and scanners, vending machines, POS terminals and consumer electronics.

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HTD Timing Belt

2M Timing Belt 52-3000mm, 2mm Pitch, 4/6/9/12mm CR, ISO 13050