Cixi Tianyi Synchro-belt Co.,Ltd.

Timing Pulley

	Timing Pulleys

Click to enlarge image

Model Number

xl,l,h,3m,5m,8m,14m

SYNCHRONOUS PULLEY

　　 Note when checking form and order pulley:

            1. Belt and pulley of our company can be attachment or replacement of imported belt and pulley.
            2. Please supply drawing when you order. We can also draw for clients as their
                 supplied specification, hole, key way and width.
            3. The tolerance of outside diameter, end bounce 7 wrap direction of pulley should conform
                 to Form1,form 2 & form3.
           4. Width of different specification of timing belt and pulley must conform to form4.
            5. Outside diameter of pulleys and size should be as form's regulation.
           6. We can also produce pulleys even sizes are not in the form.
           7. The material of pulley mainly composed of carbon steel, if possible  aluminum alloy nylon can
                also be  employed; if external diameter is larger than 250 mm, iron is used.

Representation of pulley

representation of T type pulley representation of ARC tooth representation of German T type pulley

Stype　 Stype Ftype 　 Ftype 　Wtype

Dimension of HTD type pulley(mm)

type	pb	ht	R	S	半径r	angle
3M	3	1.28	0.91	1.90	0.3	14?/font>
5M	5	2.16	1.56	3.25	0.48	14?/font>
8M	8	3.54	2.57	5.35	0.8	14?/font>
14M	14	6.20	4.65	9.80	1.4	14?/font>

Dimension of HTD type pulley(mm)

齿距代号	type				type			V Grad	rd	rt		2a
齿距代号	SE br		N br		SE hg		N hg	V Grad	rd	rt		2a
		difference		difference		difference					difference
T2.5	1.75	＋0.05	1.83	＋0.05	0.75	＋0.05	1	25	0.2	0.3	＋0.05	0.53
		0		0		0					0
T5	2.96	＋0.05	3.32	＋0.05	1.25	＋0.05	1.95	25	0.4	0.6	＋0.05	0.85
		0		0		0					0
10	6.02	＋0.1	6.57	＋0.1	2.6	＋0.1	3.4	25	0.6	0.8	＋0.1	1.85
		0		0		0					0
20	11.65	＋0.15	12.6	＋0.15	5.2	＋0.13	6	25	0.8	1.2	＋0.1	2.85
		0		0		0					0

Dimension & tolerance of linear type pulley（mm）

type	bw	hg	?1.5?/font>	rb	rt	2
MXL	0.85?.05	0.69	20	0.35	0.13	0.508
XXL	1.14?.05	0.84	25	0.35	0.30	0.508
XL	1.32?.05	1.65	20	0.41	0.64	0.508
L	3.05?.10	2.67	20	1.19	1.17	0.762
H	4.19?.13	3.05	20	1.60	1.6	1.372
XH	7.90?.15	7.14	20	1.98	2.39	2.794
XXH	12.17?.18	10.31	20	3.96	3.18	3.048

Pitch tolerance（mm）

outside diameter pitch	difference allowed
outside diameter pitch	gap	gap allowed in 90?/font>
<25.40	0.03	0.05
>25.40－50.80	0.03	0.08
>50.80－101.60	0.03	0.10
>101.66－177.80	0.03	0.13
>177.80－304.80	0.03	0.15
>340.80－508.00	0.03	0.18
>580.00	0.03	0.20

Tolerance of outside diameter of pulley（mm）

outside diameter	outside diameter
<25.40	+0.05 0
>25.40-50.80	+0.08 0
>50.80-101.60	+0.10 0
>101.60-177.80	+0.13 0
>177.80-304.80	+0.15 0
>304.80-508.00	+0.18 0
>508.00	+0.20 0