Helical gear units - Dimensions

A - Foot mounted version

	A	AB	A1	B	BB	B8	C	H	HA	H1	H2	K	L	D	DB	E	E1	E2	F	GA
G0	90	105	109	70	90	12.5	80	70-0.5	10	7	117.5	Ø6.6	151.5	Ø20k6	M6	40	32	4	6	22.5
G1	100	120	125	70	90	10	81	85-0.5	12	5	142.5	Ø6.6	163	Ø20k6	M6	40	32	4	6	22.5
G2	120	140	150	85	105	10	100	100-0.5	18	11	162.5	Ø9	195	Ø25k6	M10	50	40	5	8	28
G3	135	160	177	110	135	12.5	116.5 126.5	120-0.5	24	11	192.5	Ø11	234 244	Ø30k6 Ø35k6	M10 M12	60 70	50 60	5 5	8 10	33 38
G4	170	200	208	135	165	15	146	145-0.5	30	16	233	Ø13.5	281	Ø40k6	M16	80	70	5	12	43
G5	215	250	259	170	205	17.5	181	180-0.5	35	20	289.5	Ø17.5	335	Ø50k6	M16	100	80	10	14	53.5
G6	255	300	309	200	245	23	207	220-0.5	45	20	354.5	Ø22	392	Ø60m6	M20	120	100	10	18	64
G7	290	350	360	280	330	25	239	250-1	55	28.5	401.5	Ø26	485	Ø75m6	M20	140	125	7.5	20	79.5
G8	330	400	412	330	395	32.5	290	290-1	65	32	464	Ø33	585.5	Ø90m6	M24	170	140	15	25	95
G9	390	460	466	400	480	40	335	340-1	75	39	534	Ø39	695	Ø110m6	M24	210	180	15	28	116

C - Flange mounted version

	A1	H1	L	H3	H4	D	DB	E	E1	E2	F	GA
G0	109	7	151.5	47.5	71	Ø20k6	M6	40	32	4	6	22.5
G1	125	5	163	57.5	85	Ø20k6	M6	40	32	4	6	22.5
G2	150	11	195	62.5	100.5	Ø25k6	M10	50	40	5	8	28
G3	177	11	234 244	72.5	120	Ø30k6 Ø35k6	M10 M12	60 70	50 60	5 5	8 10	33 38
G4	208	16	281	88	144.5	Ø40k6	M16	80	70	5	12	43
G5	259	20	335	109.5	179	Ø50k6	M16	100	80	10	14	53.5
G6	309	20	392	134.5	218.5	Ø60m6	M20	120	100	10	18	64
G7	360	28.5	485	151.5	248.5	Ø75m6	M20	140	125	7.5	20	79.5
G8	412	32	585.5	174	289	Ø90m6	M24	170	140	15	25	95
G9	466	39	695	194	338.5	Ø110m6	M24	210	180	15	28	116

	M	N	P	LA	T	S
G0	Ø100	Ø80 j6	Ø120	8	3	Ø6.6
G1	Ø100 Ø115	Ø80 j6 Ø95 j6	Ø120 Ø140	8 9	3 3	Ø6.6 Ø9
G2	Ø115 Ø130	Ø95 j6 Ø110 j6	Ø140 Ø160	9 9	3 3.5	Ø9 Ø9
G3	Ø130 Ø165	Ø110 j6 Ø130 j6	Ø160 Ø200	9 10	3.5 3.5	Ø9 Ø11
G4	Ø165	Ø130 j6	Ø200	10	3.5	Ø11
G5	Ø215	Ø180 j6	Ø250	11	4	Ø13.5
G6	Ø265	Ø230 j6	Ø300	12	4	Ø13.5
G7	Ø300	Ø250 h6	Ø350	13	5	Ø17.5
G8	Ø400	Ø350 h6	Ø450	16	5	Ø17.5
G9	Ø400	Ø350 h6	Ø450	16	5	Ø17.5

E - Foot-flange mounted version

	A	AB	A1	B	BB	B8	C	H	HA	H1	H2	K	L	D	DB	E	E1	E2	F	GA
G0	90	105	109	70	90	12.5	80	70-0.5	10	7	117.5	Ø6.6	151.5	Ø20k6	M6	40	32	4	6	22.5
G1	100	120	125	70	90	10	81	85-0.5	12	5	142.5	Ø6.6	163	Ø20k6	M6	40	32	4	6	22.5
G2	120	140	150	85	105	10	100	100-0.5	18	11	162.5	Ø9	195	Ø25k6	M10	50	40	5	8	28
G3	135	160	177	110	135	12.5	116.5 126.5	120-0.5	24	11	192.5	Ø11	234 244	Ø30k6 Ø35k6	M10 M12	60 70	50 60	5 5	8 10	33 38
G4	170	200	208	135	165	15	146	145-0.5	30	16	233	Ø13.5	281	Ø40k6	M16	80	70	5	12	43
G5	215	250	259	170	205	17.5	181	180-0.5	35	20	289.5	Ø17.5	335	Ø50k6	M16	100	80	10	14	53.5

	M	N	P	LA	T	S
G0	Ø100	Ø80 j6	Ø120	8	3	Ø6.6
G1	Ø100 Ø115	Ø80 j6 Ø95 j6	Ø120 Ø140	8 9	3 3	Ø6.6 Ø9
G2	Ø115 Ø130	Ø95 j6 Ø110 j6	Ø140 Ø160	9 9	3 3.5	Ø9 Ø9
G3	Ø130 Ø165	Ø110 j6 Ø130 j6	Ø160 Ø200	9 10	3.5 3.5	Ø9 Ø11
G4	Ø165	Ø130 j6	Ø200	10	3.5	Ø11
G5	Ø215	Ø180 j6	Ø250	11	4	Ø13.5

Output shaft with key

Metric

Dimensions are mm

Gear Unit	D	E	E2	Key	GA	DB	L
G0	20 ^+0.015_+0.002	40	4	6 x 6 x 32	22.5	DR M6 x 16	151.5
G1	20 ^+0.015_+0.002	40	4	6 x 6 x 32	22.5	DR M6 x 16	163
G2	25 ^+0.015_+0.002	50	5	8 x 7 x 40	28	DR M10 x 22	195
G3	30 ^+0.015_+0.002	60	5	8 x 7 x 50	33	DR M10 x 22	234
G3	35 ^+0.018_+0.002	70	5	10 x 8 x 60	38	DR M12 x 28	244
G4	40 ^+0.018_+0.002	80	5	12 x 8 x 70	43	DR M16 x 36	281
G5	50 ^+0.018_+0.002	100	10	14 x 9 x 80	53.5	DR M16 x 36	335
G6	60 ^+0.030_+0.011	120	10	18 x 11 x 100	64	DR M20 x 42	392
G7	75 ^+0.030_+0.011	140	7.5	20 x 12 x 125	79.5	DR M20 x 42	485
G8	90 ^+0.035_+0.013	170	15	25 x 14 x 140	95	DR M24 x 50	585.5
G9	110 ^+0.035_+0.013	210	15	28 x 16 x 180	116	DR M24 x 50	695

Inch

Dimensions are inch

Gear Unit	D	E	E2	Key	GA	DB	L
G0	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	5.96
G1	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	6.42
G2	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	7.68
G3	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	9.21
G4	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	11.06
G5	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	13.19
G6	2.375 ⁰_-0.001	4.72	0.61	5/8 x 5/8 x 3 1/2	2.65	3/4-10 x 1.61 UNC	15.43
G7	3.000 ⁰_-0.001	5.51	0.69	3/4 x 3/4 x 4 1/8	3.33	3/4-10 x 1.61 UNC	19.09
G8	3.625 ⁰_-0.001	6.69	0.65	7/8 x 7/8 x 5 3/8	4.01	1-8 x 2.13 UNC	23.05
G9	4.375 ⁰_-0.001	8.27	1.14	1 x 1 x 6	4.82	1-8 x 2.13 UNC	27.36