BSG Harmonic Gearbox

The composition of harmonic drive device
Harmonic deceleration transmission device is mainly composed of three basic parts, namely: wave generator, circular spine and flexspline.
Wave generator: It is composed of flexible bearing and elliptical CAM.
Flexspline: Thin-walled metal elastomer parts with outer ring teeth.
Circular spine: A rigid circular ring with an inner ring, generally softer ,The number of teeth is 2 more teeth.


Technical features
1. Unique toothed structure
The double arc tooth shape design concept of golden section ratio is adopted to perfectly design the length-height ratio of tooth shape. In addition, by expanding the root R, the stress concentration of the root is reduced, and the strength, rigidity and service life of the flexwheel are greatly improved
2. High transmission accuracy
With special CAM profile design, the gear tooth engagement is higher, the transmission is more smooth, and the zero backlash can be realized in a real sense, so as to improve the transmission smoothness.
3. Unique surface treatment process
Repeated positioning accuracy and transmission error retention ability are increased by 100%, contact fatigue life is increased by 100%, friction coefficient is reduced from Ra0.5 to Ra0.1, and noise can be effectively reduced by about 20%; At the same time, the drive stability is improved.
4. Unique heat treatment process
High purity imported materials, unique heat treatment process, grain size ≥9, elastic limit increased by 20%, bending fatigue strength increased by 15%

 

Model	Reduction ratio	Rated speed when input 2000r/min		Allowable peak torque at start stop		Maximum allowable load torque on average		Maximum allowable moment torque
		Nm	kgfm	Nm	kgfm	Nm	kgfm	Nm	kgfm
14	50	7.0	0.7	23	2.3	9.0	0.9	46	4.7
	80	10	1.0	30	3.1	14	1.4	61	6.2
	100	10	1.0	36	3.7	14	1.4	70	7.2
17	50	21	2.1	44	4.5	34	3.4	91	9
	80	29	2.9	56	5.7	35	3.6	113	12
	100	31	3.2	70	7.2	51	5.2	143	15
	120	31	3.2	70	7.2	51	5.2	112	11
20	50	33	3.3	73	7.4	44	4.5	127	13
	80	44	4.5	96	9.8	61	6.2	165	17
	100	52	5.3	107	10.9	64	6.5	191	20
	120	52	5.3	113	11.5	64	6.5	191	20
	160	52	5.3	120	12.2	64	6.5	191	20
25	50	51	5.2	127	13	72	7.3	242	25
	80	82	8.4	178	18	113	12	332	34
	100	87	8.9	204	21	140	14	369	38
	120	87	8.9	217	22	140	14	395	40
	160	87	8.9	229	23	140	14	408	42
32	50	99	10	281	29	140	14	497	51
	80	153	16	395	40	217	22	738	75
	100	178	18	433	44	281	29	841	86
	120	178	18	459	47	281	29	892	91
	160	178	18	484	49	281	29	892	91

Model	Reduction ratio	Allowable maximum input speed r/min		Allowable average input speed r/min		Rotational inertia		Back clerance	Angular transmission accuracy
		Lubricating oil	Grease lubrication	Lubricating oil	Grease lubrication	I*10-4kgm²	J*10-5kgfms²	arcsec	arcmin
14	50	14000	8500	6500	3500	0.033	0.034	36	1.5
	80							23
	100							18
17	50	10000	7300	6500	3500	0.079	0.081	20	1.5
	800							13
	100							10
	120							8
20	50	10000	6500	6500	3500	0.193	0.197	17	1
	80							11
	100							9
	120							8
	160							6
25	50	7500	5600	5600	3500	0.413	0.421	17	1
	80							11
	100							9
	120							8
	160							6
32	50	7000	4800	4600	3500	1.69	1.72	14	1
	80							9
	100							7
	120							6
	160							5