Synchronous Pulley

Synchronous Pulley Aluminum plate Synchronous Belt V-belt V-Pulley Rack Specialty Tapes

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Synchronous pulley:Widely used in mechanical, textile, printing, tobacco, chemical, light industry, metallurgy, mining, instrumentation, petroleum, automotive and other industries. Our company can design and manufacture synchronous pulleys for various purposes for users, with reasonable prices and timely delivery. We welcome cooperation.

Multi wedge pulley:Multi wedge belt transmission is a comprehensive transmission of V-belts and flat belts, with advantages such as high transmission power, good twisting performance, long service life, low energy loss, and low elongation. It will gradually replace V-belts, flat belts, and other fields.

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Basic structure Tolerance table Code representation Tooth shape size

Type of Basic Structure of Synchronous Pulley

P=Pitch is the distance between the axes of two adjacent teeth irespecive of whether these teeth are on the pulley or the belt provided that measurement is taken on the circum ference of pitch line

Z=Nunber of pulley teeth

Dp=The diameter of the pulley pitch is obtained from fomula Dp=P.Z/π

De=External diameter of pulley De=Dp-2k

Dm=Hubs diameter

d=Bore diameter

W=Tooth width

L=Total lenght incl hubs

Synchronous pulley materials:steel,cast piece,aluminium alloy

1.Pitch tolerance(mm)

Outside diameter pitch	Tolerance windage
	any two close gears	90°arc
≤25.40	0.03	0.05
>25.40-50.80	0.03	0.08
>50.80-101.60	0.03	0.10
>101.60-177.80	0.03	0.13
>177.80-304.80	0.03	0.15
>304.80-508.00	0.03	0.18
>508	0.03	0.20

2.Toerance of outside diameter of pulley(mm)

Outside diameter pitch	Outside diameter
≤25.40	+0.050
>25.40-50.80	+0.080
>50.80-101.60	+0.100
>101.60-177.80	+0.130
>177.80-304.80	+0.150
>304.80-508.00	+0.180

3.Allowable bounce of pulley end(mm)

Ourside Diameter	Allowable Bounce
≤101.60 >101.60-254.00 >254.00	0.10 Outer diameter of pulley×0.001 0.25+[（Outer diameter of pulley-254.00）×0.005]

4.Allwable bounce of pulley warp direction(mm)

Outside Diameter Pitch	Allowable Bounce
≤203.20 >203.20	0.13 0.13+[( Outer diameter of pulley-203.20）×0.005]

1.Trapezoid tooth Synchronous Belt Symbols Denote Method

Example:

2.T Type Symbols Denote Method

Example:

3.HTD type pulley Symbols Denote Method

Example:

1.Dimension & tolerance of linear type pulley（mm）

Type	bw	hg	β±1.5°	rb	rt	2k
MXL	0.84±0.05	0.69	20	0.35	0.13	0.508
XXL	1.14±0.05	0.84	25	0.35	0.30	0.508
XL	1.32±0.05	1.65	25	0.41	0.64	0.508
L	3.05±0.10	2.67	20	1.19	1.17	0.762
H	4.19±0.13	3.05	20	1.60	1.6	1.372
XH	7.90±1.15	7.14	20	1.98	2.39	2.794
XXH	12.17±0.18	10.31	20	3.96	3.18	3.048

2. Dimension of T type pulley （mm）

P	Type				Type			β Grad	rb	rt		2k
P	SE br		N br		SE hg		N hg	β Grad	rb	rt		2k
		ourside diameter		ourside diameter		ourside diameter	mix	±1.5°	max		ourside diameter
T2.5	1.75	+0.050	1.83	+0.050	0.75	+0.050	1	25	0.2	0.3	+0.050	0.6
T5	2.96	+0.050	3.32	+0.050	1.25	+0.050	1.95	25	0.4	0.6	+0.050	1
T10	6.02	+0.100	6.57	+0.100	2.6	+0.100	3.4	25	0.6	0.8	+0.100	2
T20	11.65	+0.150	12.6	+.0150	5.2	+.0130	6	25	0.8	1.2	+0.100	3

3.Dimension of HTD type pulley（mm）

Type	P	hg	R	S	r	angly	2k
3M	3	1.28	0.91	1.90	0.3	≈14°	0.762
5M	5	2.16	1.56	3.25	0.48	≈14°	1.14
8M	8	3.54	2.57	5.35	0.8	≈14°	1.372
14M	14	6.20	4.65	9.80	1.4	≈14°	2.794
20M	20	8.60	6.84	14.80	1.4	≈14°	4.30

4.Dimension of S type pulley（mm）

Type	P	hg	R	S	2k
S2M	2	0.76	1.325	1.30	0.508
S3M	3	1.11	1.975	1.95	0.762
S4.5M	4.5	1.59	2.98	2.93	0.762
S5M	5	1.77	3.275	3.25	0.96
S8M	8	2.83	5.30	5.20	1.372
S14M	14	4.95	9.28	9.10	2.794

5.Dimesion of AT type pulley(mm)

Type	Pitch	Tooth angle	Groove width	Tooth heigth	Fillet	Tip	2k
Type	PB	2β°	s	jg	Radiusr1	Radiusr2	2k
AT3	3	50±1	1.5	1.0	0.3	0.2	0.6
AT5	5		2.7	1.10	0.86	0.40	1
AT10	10		5.4	2.35	1.25	0.40	2
AT20	20		10	5.00	2.50	1.75	2.96