customized aluminum alloy synchronous pulley wheel gear

Short Description:

1, The belt wheel we produce can match with the synchronous belt of different kinds from domestic and abroad.

2, Please provide with drawing for customization. It is not necessary to conclude the size and shape of tooth. We can also provide the drawing according to the required model, holes, keyway, width etc.

3, The tolerance of outer diameter, face run-out, radial run-out shall conform to the listed requirement in the table below.

4, The material of the of the wheel is mainly carbon steel. Special requirements such as aluminum alloy or nylon type are also available. The diameter above 250 mm, shall use case iron.

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Details

Different structures

外型图

Wheel tolerances

Belt wheel pitch tolerance

Outer diameter	Allowed tolerance
Outer diameter	Between each tooth	90 degree arc tolerance
≤25.40	0.03	0.05
25.40~50.80	0.03	0.08
50.80~101.60	0.03	0.10
101.60~117.80	0.03	0.13
117.80~304.80	0.03	0.15
304.80~508.00	0.03	0.18
＞508.00	0.03	0.20

Belt wheel outer diameter tolerance		Belt wheel face run-out tolerance
Outer diameter	Tolerance	Outer diameter	Tolerance
≤25.40	+0.05	≤101.61	0.10
25.40~50.80	+0.08	101.61~254.00	outer dia.×0.001
50.80~101.60	+0.10	＞254.00	0.25+[(o.d.-254)×0.005]
101.60~117.80	+0.13	Radical run-out tolerance
117.80~304.80	+0.15	≤203.20	0.13
304.80~508.00	+0.18	＞203.20	0.13+[(o.d.-203.2)×0.005]

Tooth tolerances

Belt wheel with straight edge tooth size and tolerances

Code	bw	hg	y+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	20	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±0.15	7.14	20	1.98	2.39	2.794
XXH	12.17±0.18	10.31	20	3.96	3.18	3.048

HTD belt wheel size and tolerances

Code	Pitch	Tooth height hg	Bottom circle radius R	Tooth space width S	Top circle radius r	Angle
3M	3	1.28	0.91	1.90	0.3	≈14°
5M	5	2.16	1.56	3.25	0.48	≈14°
8M	8	3.54	2.57	5.35	0.8	≈14°
14M	14	6.20	4.65	9.80	1.4	≈14°

Belt wheel with T type tooth size and tolerances

Code	Shape				y Grade	rt	rb	2k
Code	SE br≤20 teeth	N br≤20 teeth	SE hg≤20 teeth	N hg≤20 teeth min	±1.5°	max	rb	2k
T2.5	1.75+0.05	1.83+0.05	0.75+0.05	1	25	0.2	0.3+0.05	0.6
T5	2.96+0.05	3.32+0.05	1.25+0.05	1.95	25	0.4	0.6+0.05	0.85
T10	6.02+0.10	6.57+0.10	2.6+0.10	3.4	25	0.6	0.8+0.10	1.85
T20	11.65+0.15	12.6+0.15	5.2+0.13	6	25	0.8	1.2+0.10	2.83

STPD/STS belt wheel size and tolerances

Code	Pitch	Tooth height hg	Bottom circle radius R	Tooth space width 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	1.89	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