Helical worm gear units - Dimensions

A - Foot mounted version

	A	AB	A1	A2	A3	B	B1	B2	H	HA	HB	H1	H2	H3	H4	H5	L	S1
S0	50	63	86	43	2	60	52-0.5	30	70-0.5	9	9	7.5	113	106.5	29	86	126	M6
S1	90	110	116	58	2	75	70-0.5	37.5	95-0.5	15	12	10	151.5	137.5	30	95	160	Ø9
S2	110	135	144	72	3	90	85-0.5	45	120-0.5	18	15	18	191	175	40	120	191	Ø11
S3	120	150	168	84	3.5	115	100-0.5	57.5	145-0.5	22	18	24	229.5	212	47	150	233	Ø13.5
S4	150	185	202	101	4	135	125-0.5	70	180-0.5	25	22	35	280	259.5	57	180	280	Ø17.5

B - Shaft mounted version

	A1	A2	A3	B3	H1	H6	H7	L1	M1	P1	S2	T2
S0	86	43	2	52	7.5	113.5	70.5	126	74	86	M6	9
S1	116	58	2	69	10	153.5	97	159	87	99	M6	9
S2	144	72	3	85	18	193	122	191	96	112	M8	12
S3	168	84	3.5	100	24	231.5	147	233	106	122	M8	12
S4	202	101	4	125	35	282	182	280	130	150	M10	15

C - Flange mounted version

	A2	A3	A4	B3	B7	H1	H6	H7	L1
S0	43	2	63	52	18	7.5	113.5	70.5	126
S1	58	2	70	69	10	10	153.5	97	159
S2	72	3	83	85	8	18	193	122	191
S3	84	3.5	95	100	7.5	24	231.5	147	233
S4	101	4	113	125	8	35	282	182	280

	M	N	P	LA	T	S
S0	Ø100	Ø80 j6	Ø120	8	3	Ø6.6
S1	Ø130	Ø110 j6	Ø160	9	3.5	Ø9
S2	Ø130 Ø165	Ø110 j6 Ø130 j6	Ø160 Ø200	9 10	3.5 3.5	Ø9 Ø11
S3	Ø165 Ø215	Ø130 j6 Ø180 j6	Ø200 Ø250	10 11	3.5 4	Ø11 Ø13.5
S4	Ø215 Ø265	Ø180 j6 Ø230 j6	Ø250 Ø300	11 12	4 4	Ø13.5

D - Shaft mounted version + foot area

	A1	A2	A3	A5	B3	B4	B5	B6	H	H1	H2	L1	M1	P1	S2	T2	S3	T3
S1	116	58	2	50	69	46	82	54	95	10	151.5	159	87	99	M6	9	M8	12
S2	144	72	3	65	85	58	110	54	120	18	191	191	96	112	M8	12	M8	12
S3	168	84	3.5	70	100	67.5	135	65.5	145	24	229.5	233	106	122	M8	12	M10	15
S4	202	101	4	80	125	87.5	175	67.5	180	35	280	280	130	150	M10	15	M16	24

E - Flange mounted version + foot area

	A2	A3	A4	A5	B3	B4	B6	B7	H	H1	H2	L1	S3	T3
S1	58	2	70	50	69	46	54	10	95	10	151.5	159	M8	12
S2	72	3	83	65	85	58	54	8	120	18	191	191	M8	12
S3	84	3.5	95	70	100	67.5	65.5	7.5	145	24	229.5	233	M10	15
S4	101	4	113	80	125	87.5	67.5	8	180	35	280	280	M16	24

	M	N	P	LA	T	S
S1	Ø130	Ø110 j6	Ø160	9	3.5	Ø9
S2	Ø130 Ø165	Ø110 j6 Ø130 j6	Ø160 Ø200	9 10	3.5 3.5	Ø9 Ø11
S3	Ø165 Ø215	Ø130 j6 Ø180 j6	Ø200 Ø250	10 11	3.5 4	Ø11 Ø13.5
S4	Ø215 Ø265	Ø180 j6 Ø230 j6	Ø250 Ø300	11 12	4 4	Ø13.5

Hollow shaft with keyway

	A8	D1	D2	E3	E4	E5	F1	G1
S0	45	Ø20H7	35	90	14	-	6	22.8
S1	60	Ø25H7	45	120	15	-	8	28.3
S2	75	Ø30H7 Ø35H7	50	150	18	-	8 10	33.3 38.3
S3	87.5	Ø40H7	55	175	20	-	12	43.3
S4	105	Ø50H7	70	210	25	70	14	53.8

Metric

Gear Unit	D1	E3	E5	E4	D2	G1	F1	A8
S0	20 ^+0.021₀	90	-	14	35	22.8	6	45
S1	25 ^+0.021₀	120	-	15	45	28.3	8	60
S2	30 ^+0.021₀	150	-	18	50	33.3	8	75
S2	35 ^+0.025₀	150	-	18	50	38.3	10	75
S3	40 ^+0.025₀	175	-	20	55	43.3	12	87.5
S4	50 ^+0.025₀	210	70	25	70	53.8	14	105

Inch

Dimensions are inch

Gear Unit	D1	E3	E5	E4	D2	G1	F1	A8
S0	0.750 ^+0.0008₀	3.54	1.18	0.55	1.38	0.847	0.188	1.77
S1	1.000 ^+0.0008₀	4.72	1.57	0.59	1.77	1.124	0.250	2.36
S2	1.250 ^+0.0010₀	5.91	1.97	0.71	1.97	1.377	0.250	2.95
S3	1.500 ^+0.0010₀	6.89	2.36	0.79	2.17	1.679	0.375	3.44
S4	2.000 ^+0.0012₀	8.27	2.76	0.98	2.76	2.233	0.500	4.13

V - Output shaft with key

	A6	D	DB	E	E1	E2	F	GA
S02A S02C	85 103	Ø20k6	M6	40	32	4	6	22.5
S1	120	Ø25k6	M10	50	40	5	8	28
S2	143 153	Ø30k6 Ø35k6	M10 M12	60 70	50 60	5 5	8 10	33 38
S3	175	Ø40k6	M16	80	70	5	12	43
S4	213	Ø50k6	M16	100	80	10	14	53.5

Output shaft with key

Metric

Dimensions are mm

Gear Unit	D	E	E2	Key	GA	DB	A6
S0A S0C	20 ^+0.015_+0.002	40	4	6 x 6 x 32	22.5	DR M6 x 16	85 103
S1	25 ^+0.015_+0.002	50	5	8 x 7 x 40	28	DR M10 x 22	120
S2	30 ^+0.015_+0.002	60	5	8 x 7 x 50	33	DR M10 x 22	143
S2	35 ^+0.018_+0.002	70	5	10 x 8 x 60	38	DR M12 x 28	153
S3	40 ^+0.018_+0.002	80	5	12 x 8 x 70	43	DR M16 x 36	175
S4	50 ^+0.018_+0.002	100	10	14 x 9 x 80	53.5	DR M16 x 36	213

Inch

Dimensions are inch

Gear Unit	D	E	E2	Key	GA	DB	A6
S0A S0C	0.750 ⁰_-0.0005	1.57	0.16	3/16 x 3/16 x 1 1/4	0.83	1/4-20 x 0.63 UNC	3.35 4.06
S1	1.000 ⁰_-0.0005	1.97	0.24	1/4 x 1/4 x 1 1/2	1.11	3/8-16 x 0.87 UNC	4.72
S2	1.250 ⁰_-0.0005	2.36	0.31	1/4 x 1/4 x 1 3/4	1.36	1/2-13 x 1.12 UNC	5.63
S3	1.625 ⁰_-0.001	3.15	0.45	3/8 x 3/8 x 2 1/4	1.79	5/8-11 x 1.38 UNC	6.89
S4	2.000 ⁰_-0.001	3.94	0.65	1/2 x 1/2 x 2 5/8	2.22	3/4-10 x 1.61 UNC	8.39

S - Hollow shaft with shrink disc

	A7	A8	D2	D3	D5	D6	E6	E7	E8	E9	E10
S1	98	60	45	77	Ø25H7	Ø25h6	143	25	25	27	27
S2	113	75	50	86	Ø30H7 Ø35H7	Ø30h6 Ø35h6	176	20	30	22	32
S3	127	87.5	55	96	Ø40H7	Ø40h6	202	20	40	22	42
S4	150	105	70	117	Ø50H7	Ø50h6	242	30	50	32	52

T1 - Torque arm

	A9	A10	A11	A12	D11	D12	H8	R1	R2
S0	52.5	15	47	4	11	32	100	20	43
S1	68.5	15	64	6	11	32	130	20	49.5
S2	87	22	80	8	11	32	160	20	56
S3	99	22	92	8	11	32	200	23	61
S4	121	32	109	8	17	40	250	30	75