Harmonic Drive LLC | 42 Dunham Ridge, Beverly, MA 01915 | 800-921-3332
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FR-2

The FR pancake gear consists of four main parts: Wave Generator, Flexspline, Dynamic Spline, and Circular Spline. When assembled, rotation of the Wave Generator as a high speed input member imparts a rotating elliptical shape to the Flexspline. This causes progressive engagement of its external teeth with the internal teeth of the Circular Spline. The fixed Circular Spline, having a larger number of teeth than the Flexspline causes the latter to precess at a rate determined by the ratio of tooth difference to the total number of teeth. With the same number of teeth as the Flexspline, The Dynamic Spline rotates with, and at the same speed as, the Flexspline and is the output member of the drive.

Key Features:

Maximum reduction ratio in minimum space
Low backlash
Simple installation and maintenance
FR is a heavy duty version of the FB
FR uses a double wave generator bearing

(click to enlarge)

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FR-25-2-GR

Compare Products Your current units are metric. Change to english.

Ordering Code	Size	Ratio	Rated Torque L10	Limit for Repeated Peak Torque	Limit for Momentary Peak Torque	Gear Backlash	Mass	K1 Torsional Stiffness	K2 Torsional Stiffness	K3 Torsional Stiffness
Compare Products			Nm	Nm	Nm	arc min	kg	10^4 Nm / rad	10^4 Nm / rad	10^4 Nm / rad

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Ordering Code	Size	Ratio	Rated Torque L10	Limit for Repeated Peak Torque	Limit for Momentary Peak Torque	Gear Backlash	Mass	K1 Torsional Stiffness	K2 Torsional Stiffness	K3 Torsional Stiffness
Compare Products			Nm	Nm	Nm	arc min	kg	10^4 Nm / rad	10^4 Nm / rad	10^4 Nm / rad
Sort	Sort Hide	Sort Hide	Sort Hide	Sort Hide	Sort Hide	Sort Hide	Sort Hide	Sort Hide	Sort Hide	Sort Hide
Selections	to	to	to	to	to	to	to	to	to	to

Select All Select None
FR-14-50-2-GR	14	50	4.4	5.4	13.7	< 1.5	0.2	0.26	0.64	1
FR-14-88-2-GR	14	88	5.9	9.8	19.6	< 1.5	0.2	0.26	0.64	1
FR-14-100-2-GR	14	100	7.8	13.7	19.6	< 1.5	0.2	0.26	0.64	1
FR-14-110-2-GR	14	110	7.8	13.7	19.6	< 1.5	0.2	0.26	0.64	1
FR-20-50-2-GR	20	50	25	34	69	< 1.5	0.5	0.81	2.8	3
FR-20-80-2-GR	20	80	34	41	72	< 1.5	0.5	0.81	2.8	3
FR-20-100-2-GR	20	100	40	53	94	< 1.5	0.5	0.81	2.8	3
FR-20-128-2-GR	20	128	40	67	102	< 1.5	0.5	0.81	2.8	3
FR-20-160-2-GR	20	160	40	77	86	< 1.5	0.5	0.81	2.8	3
FR-25-50-2-GR	25	50	39	55	108	< 1.5	0.8	1.6	3.7	5.4
FR-25-80-2-GR	25	80	56	69	122	< 1.5	0.8	1.6	3.7	5.4
FR-25-100-2-GR	25	100	67	91	160	< 1.5	0.8	1.6	3.7	5.4
FR-25-120-2-GR	25	120	67	108	190	< 1.5	0.8	1.6	3.7	5.4
FR-25-160-2-GR	25	160	67	135	172	< 1.5	0.8	1.6	3.7	5.4
FR-25-200-2-GR	25	200	67	147	172	< 1.5	0.8	1.6	3.7	5.4
FR-32-50-2-GR	32	50	76	108	216	< 1.5	1.7	2.8	8.4	12
FR-32-78-2-GR	32	78	108	137	245	< 1.5	1.7	2.8	8.4	12
FR-32-100-2-GR	32	100	137	176	323	< 1.5	1.7	2.8	8.4	12
FR-32-131-2-GR	32	131	137	255	451	< 1.5	1.7	2.8	8.4	12
FR-32-157-2-GR	32	157	137	294	500	< 1.5	1.7	2.8	8.4	12
FR-32-200-2-GR	32	200	137	314	372	< 1.5	1.7	2.8	8.4	12
FR-32-260-2-GR	32	260	137	314	372	< 1.5	1.7	2.8	8.4	12
FR-40-50-2-GR	40	50	137	196	353	< 1.5	3	6.1	18	24
FR-40-80-2-GR	40	80	196	245	431	< 1.5	3	6.1	18	24
FR-40-100-2-GR	40	100	255	314	549	< 1.5	3	6.1	18	24
FR-40-128-2-GR	40	128	294	392	686	< 1.5	3	6.1	18	24
FR-40-160-2-GR	40	160	294	461	813	< 1.5	3	6.1	18	24
FR-40-200-2-GR	40	200	294	529	745	< 1.5	3	6.1	18	24
FR-40-258-2-GR	40	258	294	627	745	< 1.5	3	6.1	18	24
FR-50-80-2-GR	50	80	363	440	784	< 1.5	6	12	34	48
FR-50-100-2-GR	50	100	470	578	1,019	< 1.5	6	12	34	48
FR-50-120-2-GR	50	120	559	696	1,225	< 1.5	6	12	34	48
FR-50-160-2-GR	50	160	559	833	1,470	< 1.5	6	12	34	48
FR-50-200-2-GR	50	200	559	960	1,411	< 1.5	6	12	34	48
FR-50-242-2-GR	50	242	559	1,176	1,411	< 1.5	6	12	34	48
FR-65-78-2-GR	65	78	745	921	1,617	< 1.5	12	26	64	84
FR-65-104-2-GR	65	104	1,070	1,340	2,360	< 1.5	12	26	64	84
FR-65-132-2-GR	65	132	1,070	1,650	2,890	< 1.5	12	26	64	84
FR-65-158-2-GR	65	158	1,070	1,970	3,450	< 1.5	12	26	64	84
FR-65-208-2-GR	65	208	1,070	2,180	2,590	< 1.5	12	26	64	84
FR-65-260-2-GR	65	260	1,070	2,200	2,590	< 1.5	12	26	64	84
FR-80-80-2-GR	80	80	1,320	1,640	2,870	< 1.5	22.3	51	130	165
FR-80-96-2-GR	80	96	1,660	2,050	3,590	< 1.5	22.3	51	130	165
FR-80-128-2-GR	80	128	2,300	2,820	4,960	< 1.5	22.3	51	130	165
FR-80-160-2-GR	80	160	2,350	3,380	5,940	< 1.5	22.3	51	130	165
FR-80-194-2-GR	80	194	2,350	4,300	6,900	< 1.5	22.3	51	130	165
FR-80-258-2-GR	80	258	2,350	4,350	5,170	< 1.5	22.3	51	130	165
FR-80-320-2-GR	80	320	2,350	4,350	5,170	< 1.5	22.3	51	130	165
FR-100-80-2-GR	100	80	2,330	2,870	5,040	< 1.5	42.6
FR-100-100-2-GR	100	100	3,200	3,940	6,920	< 1.5	42.6
FR-100-120-2-GR	100	120	3,890	4,780	8,400	< 1.5	42.6
FR-100-160-2-GR	100	160	4,470	6,230	10,950	< 1.5	42.6
FR-100-200-2-GR	100	200	4,470	7,090	12,440	< 1.5	42.6
FR-100-242-2-GR	100	242	4,470	7,960	9,410	< 1.5	42.6
FR-100-320-2-GR	100	320	4,470	7,960	9,410	< 1.5	42.6

Differential Gear

FR-2

Key Features:

FR-25-2-GR

Compare Products Your current units are metric. Change to english.

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*For areas outside of North America, please contact one of our group companies. Harmonic Drive LLC services customers in North America. Our global companies service regions outside of North America.

Differential Gear

FR-2

Key Features:

FR-25-2-GR

Compare Products Your current units are metric. Change to english.

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*For areas outside of North America, please contact one of our group companies. Harmonic Drive LLC services customers in North America. Our global companies service regions outside of North America.

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*For areas outside of North America, please contact one of our group companies. Harmonic Drive LLC services customers in North America. Our global companies service regions outside of North America.

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