External gear	Dimensions			Mounting Dimensions					Structural Dimension			Gear date				weight
	Da	Di	H	La	Li	n	B	M	n1	O	U	d	b	m	z
mm	mm	mm	mm	mm	mm		mm	mm		mm	mm	mm	mm	mm		kg
121.32.3550	3772.8	3358	159	598	402	76	30	27	10	3597	3509	3712	109	16	232	2028
121.32.3750	3980.8	3558	159	658	462	80	30	27	10	3797	3709	3936	109	16	246	2186
121.32.4000	4220.8	3808	159	728	532	84	30	27	12	4047	3959	4176	109	16	261	2278
121.32.4250	4476.8	4058	159	808	612	90	30	27	12	4297	4209	4416	109	16	276	2455
121.36.4000	4244.4	3792	175	920	680	76	33	30	12	4051	3955	4176	125	18	232	2792
121.36.4250	4496.4	4042	175	1020	780	80	33	30	12	4301	4205	4446	125	18	247	3981
121.36.4500	4784.4	4292	175	1120	880	84	33	30	14	4551	4455	4698	125	18	261	3173
121.36.4750	5000.4	4542	175	1240	1000	90	33	30	14	4801	4705	4950	125	18	275	3363
121.40.4500	4776	4276	183	1393	1107	72	36	33	14	4556	4450	4720	133	20	236	3673
121.40.4750	5016	4526	183	1543	1257	76	36	33	14	4806	4700	4960	133	20	248	3796
121.40.5000	5276	4776	183	1743	1457	80	36	33	16	5056	4950	5220	133	20	261	4082
121.40.5300	5576	5078	183	1943	1657	84	36	33	16	5356	5250	5520	133	20	276	4329
121.45.5000	5297.6	4747	203	2155	1845	76	39	36	16	5063	4945	5236	153	22	238	5201
121.45.5300	5605.6	5047	203	2395	2085	80	39	36	16	5363	5245	5544	153	22	252	5602
121.45.5600	5891.6	5347	203	2655	2345	84	39	36	18	5663	5545	5830	153	22	265	5764
121.45.6000	6287.6	5747	203	2955	2645	90	39	36	18	6063	5945	6204	153	22	282	6129
121.50.5600	5923.2	5342	221	3342	2958	90	39	36	18	5668	5540	5856	156	24	244	6397
121.50.6000	6307.2	5742	221	3742	3358	96	39	36	18	6068	5940	6240	156	24	260	6663
121.50.6700	7027.2	6442	221	4192	3808	108	39	36	20	6769	6640	6960	156	24	290	7708