Untitled Document

Features

The differential unit FD series is an extremely compact differential unit that allows you to fine-tune the phase and timing during operation by applying the unique operating principle of Harmonic Drive®.
The FD series consist of four parts like the pancake-type component unit.
The unit type is cased so that the gear and pulley for transmission can be directly installed in it.

- As the differential mechanism is put together as one,it is easily installed in the equipment.
- It consists of only four parts and is coaxially put together.
- As the backlash is very small,the unit requires no assembly adjustment at all,which helps reduce the assembly cost significantly
- As it has very large reduction ration between the adjusting shaft and the output,it allows highly accurate and minute position adjustment easily and requires little torque for adjusting the shaft.

<Rotational direction and reduction ratio>
The rotational direction is the same as the FB.
The section describes how to uses the unit as differential unit.
(R indicates the reduction ratio value in the ratings table.)

Models & Symbols

1. Type: FD series
2. Size: 14, 20, 25, 32, 40, 50, 65, 80, 100
3. Reduction ratio: 78, 80, 88, 96, 100, 104, 110, 120, 128, 131, 132, 157, 158,
                             160, 194, 200, 208, 242, 258, 260, 320
4. Models and symbols:
    • 0 = Unit type
    • 2 = Component type
5. Specification: G= New type

Specification

Rotational speed r/min		3500	2850	1750	1450	1150	960	870	750	600	500
Size	Reduction ratio	N·m	N·m	N·m	N·m	N·m	N·m	N·m	N·m	N·m	N·m
20	80	29	30	30	30	30	30	30	30	30	30
	100	30	31	36	36	36	36	36	36	36	36
	128	31	34	42	43	43	43	43	43	43	43
	160	32	35	42	45	48	49	49	49	49	49
25	80	46	50	57	57	57	57	57	57	57	57
	100	49	53	67	67	79	79	79	79	79	79
	120	52	55	70	70	80	82	89	91	96	96
	160	54	57	71	73	80	83	89	92	98	108
	200	55	59	71	74	80	84	89	92	98	108
32	78	98	108	108	108	108	108	108	108	108	108
	100	108	118	137	147	157	157	157	157	157	157
	131	108	118	137	157	167	176	176	196	206	206
	157	108	118	137	157	167	176	176	196	206	216
	200	108	118	137	157	167	176	176	196	206	216
	260	108	118	137	157	167	176	176	196	206	216
40	80	196	196	196	196	196	196	196	196	196	196
	100	235	245	265	265	265	265	265	265	265	265
	128	235	245	294	314	343	363	372	372	372	372
	160	235	245	294	314	343	363	372	392	421	451
	200	235	245	294	314	343	363	372	392	421	451
	258	235	245	294	314	343	363	372	392	421	451
50	80	353	353	353	353	353	353	353	353	353	353
	100	441	470	549	559	559	559	559	559	559	559
	120	441	470	549	588	637	666	666	666	666	666
	160	441	470	549	588	637	676	696	754	794	843
	200	441	470	549	588	637	676	696	754	794	843
	242	441	470	549	588	637	676	696	754	794	843
65	78	-	-	764	764	764	764	764	764	764	764
	104	-	-	1030	1100	1180	1190	1190	1190	1190	1190
	132	-	-	1030	1100	1180	1250	1290	1380	1460	1570
	158	-	-	1030	1100	1180	1250	1290	1380	1460	1570
	208	-	-	1030	1100	1180	1250	1290	1380	1460	1570
	260	-	-	1030	1100	1180	1250	1290	1380	1460	1570
80	80	-	-	1370	1370	1370	1370	1370	1370	1370	1370
	96	-	-	1800	1800	1800	1800	1800	1800	1800	1800
	128	-	-	2040	2180	2340	2490	2570	2710	2710	2710
	160	-	-	2040	2180	2340	2490	2570	2740	2950	3130
	194	-	-	2040	2180	2340	2490	2570	2740	2950	3130
	258	-	-	2040	2180	2340	2490	2570	2740	2950	3130
	320	-	-	2040	2180	2340	2490	2570	2740	2950	3130
100	80	-	-	2470	2470	2470	2470	2470	2740	2470	2470
	100	-	-	3720	3720	3720	3720	3720	3720	3720	3720
	120	-	-	3720	3980	4280	4560	4710	4740	4740	4740
	160	-	-	3720	3980	4280	4560	4710	5010	5390	5720
	200	-	-	3720	3980	4280	4560	4710	5010	5390	5720
	242	-	-	3720	3980	4280	4560	4710	5010	5390	5720
	320	-	-	3720	3980	4280	4560	4710	5010	5390	5720

Product Drawing

Unit type (FD-0)

(Unit:mm)

Symbol /Size	20	25	32	40	50	65
øA	85	95	120	145	185	235
øB(h7)	52	65	85	100	125	140
øC	20	30	40	50	60	70
D	73	81	95	113	132	147
Mass(kg)	2.0	2.6	5.0	8.3	17	34
Symbol /Size	80	100	-	-	-	-
øA	290	360	-	-	-	-
øB(h7)	180	210	-	-	-	-
øC	90	110	-	-	-	-
D	178	212	-	-	-	-
Mass(kg)	59	118	-	-	-	-

Component type (FD-2)

(Unit:mm)

Symbol /Size	20	25	32	40	50	65
øA(g7)	70	85	110	135	170	215
B	12	14	18	21	26	35
C	1	1	1	1	1	1
D	25	29	37	43	53	71
Mass(kg)	0.6	1.0	2.0	3.6	7.2	14
Symbol /Size	80	100	-	-	-	-
øA(g7)	265	330	-	-	-	-
B	41	50	-	-	-	-
C	1	1	-	-	-	-
D	83	101	-	-	-	-
Mass(kg)	26	48	-	-	-	-

Please confirm dimensions and specification with the drawing issued by Harmonic Drive Systems.