Industrial Servo Worm Flanges

There are few industry standards regulating servo motor mounting dimensions. DieQua stocks an enormous number of different flanges and mounting components, additionally we can produce motor adapter flanges to accommodate a wide range of non-standard servo and step motors to our reducers

There are two ways to select the proper mounting flange and coupling. The first and most accurate way is to provide the motor performance data and mounting dimensions listed below. Our technical staff will review the motor mounting dimensions and select the proper flange and coupling. They will also double check the motor torque data to make sure the gearbox is properly sized for the motor.


Size 28		Motor Flange
		A	B	Z	E	F	G	H	I	J
	2 Digit Code	Pilot Dia. (mm)	Bolt Circle (mm)	Flange Square (mm)	Center to Flange Face (mm)	Max Input shaft dia. (mm)	Flange Thickness (mm)	Pilot Depth (mm)	Max Shaft Insertion (mm)	Flange Fastener
28	LA	21.97	43.812	57	54.5	Ø14	10	5.0	37	Ø5.5
28	LB	22	43.84	56	51.5	Ø14	7	4.5	34	Ø5 - 4
28	LC	22	66.675	57	54.5	Ø14	10	5.0	37	Ø4.5 - 4
28	LD	24.92	38.8	57	54.5	Ø14	10	5.0	37	Ø8
28	LE	25.4	38.887	57	54.5	Ø14	10	5.0	37	Ø3.8
28	LF	30	45	50	53.5	Ø14	9	3.0	36	M3 - 4
28	LG	30	46	60	65.5	Ø14	21	5.0	48	M4 - 4 @ 45 Degrees
28	LH	36	70.7	60	65.5	Ø14	21	17.5	48	M4 - 4
28	LI	36	70.71	60	53.5	Ø14	9	4.5	36	M4 - 4
28	LJ	36	70.71	60	57.5	Ø14	13	4.5	40	M4 - 4
28	LK	38.1	66.66	56	53.5	Ø14	9	4.5	36	M4 - 4
28	LL	38.1	66.66	56	59.5	Ø14	15	4.5	41	M4 - 4
28	LM	38.1	66.66	57	57.5	Ø14	13	2.5	40	M4 - 4
28	LN	38.1	66.666	60	65.5	Ø14	21	3.5	48	M4 - 4
28	LO	38.1	66.675	60	59.5	Ø14	15	4.5	42	M4 - 4
28	LP	38.1	66.675	60	59.5	Ø14	15	4.5	42	M5 - 4
28	LQ	40	63	56	53.5	Ø14	9	4.5	36	M5 - 4
28	LR	40	63	56	57.5	Ø14	13	4.5	40	M5 - 4
28	LS	40	63	56	61.5	Ø14	17	4.5	44	M5 - 4
28	LT	40	81	67	60	Ø14	15.5	5.0	42	M6 - 4
28	LU	50	66.666	60	65.5	Ø14	21	5.0	48	M5 - 4
28	LV	50	70	60	65.5	Ø14	21	4.5	48	M4 - 4
28	LW	50	70	60	53.5	Ø14	9	4.5	36	M5 - 4
28	LX	50	70	60	65.5	Ø14	21	4.5	48	M5 - 4
28	LY	50	70	60	57.5	Ø14	13	4.5	40	M5 - 4
28	LZ	50	70	60	65.5	Ø14	21	5.0	48	M4 - 4
28	MA	50	70	60	65.5	Ø14	21	5.0	48	M5 - 4
28	MB	51	69.875	Ø88.9	65.5	Ø14	21	5.0	48	Ø6.8
28	MC	60	75	65	56.5	Ø14	12	4.5	39	M5 - 4
28	MD	60	75	70	65.5	Ø14	21	5.0	48	M5 - 4
28	ME	60	99	85	65.5	Ø14	21	5.0	48	M6 - 4
28	MF	73.03	98.4	87	67	Ø14	22.5	4.5	49	M5 - 4
28	MG	80	100	87	65.5	Ø14	21	5.0	48	M6 - 4
28	MH	83	104	90	65.5	Ø14	21	5.0	48	M8 - 4
28	MI	83.5	104	90	62.5	Ø14	18	5.0	45	M6 - 4
Dimensions are subject to change without notice


Size 40		Motor Flange
		A	B	Z	E	F	G	H	I	J
	2 Digit Code	Pilot Dia. (mm)	Bolt Circle Dia. (mm)	Flange Square (mm)	Center to Flange Face (mm)	Max Input Shaft Dia. (mm)	Flange Thickness (mm)	Pilot Depth (mm)	Max Shaft Insertion (mm)	Flange Fastener
40	NA	25	48	80	67.5	Ø15	10	4.5	39	Ø5,5 - 4
40	NB	35	50	65	78.5	Ø15	21	7.5	50	M3-4
40	NC	36	70.711	85	65.5	Ø15	8	5.0	37	M4 - 4
40	ND	38.1	66.675	70	72.5	Ø15	15	4.5	44	M4 - 4
40	NE	38.1	66.675	70	72.5	Ø15	15	4.5	44	M5 - 4
40	NF	40	63	65	72.5	Ø15	15	10.5	44	M5 - 4
40	NG	40	73.5	65	71.0	Ø15	13.5	4.5	42	M4 - 4
40	NH	40	63	70	72.5	Ø15	15	5.0	44	M5 - 4
40	NI	40	52	72	67.5	Ø15	10.0	6.0	39	Ø5,5 - 4
40	NJ	50	70	60	71.0	Ø15	13.5	3.5	42	M5 - 4
40	NK	50	70	70	78.5	Ø15	21	4.0	50	M4 - 4
40	NL	50	70	70	78.5	Ø15	21	4.0	50	M5 - 4
40	NM	50	70	70	78.5	Ø15	21.0	7.5	50	M5 - 4
40	NN	50	95	80	71.0	Ø15	13.5	4.0	42	M6 - 4
40	NO	60	75	72	71.0	Ø15	13.5	3.0	42	M5 - 4
40	NP	60	75	72	72.5	Ø15	15	5.0	42	M5 - 4
40	NQ	60	99	85	72.5	Ø15	15.0	5.0	44	M5 - 4
40	NR	70	90	80	71.0	Ø15	13.5	4.5	40	M6 - 4
40	NS	70	90.00	80	77.0	Ø15	19.5	4.5	48	M6 - 4
40	NT	73.000	98.29	85	71.0	Ø15	14	4.5	42	M5 - 4
40	NU	73.025	98.425	87	72.5	Ø15	15	4.5	44	M5 - 4
40	NV	73.025	98.425	87	72.5	Ø15	15	4.5	44	M6 - 4
40	NW	73.025	98.425	87	72.5	Ø15	15	4.5	44	M6 - 4
40	NX	73.025	98.43	87	72.5	Ø15	15	4.5	44	M6 - 4
40	NY	73	98	87	72.5	Ø15	15.0	4.5	44	M6 - 4
40	NZ	80	100	85	71.0	Ø15	13.5	4.5	42	M6 - 4
40	OA	80	100	85	72.5	Ø15	15	4.5	44	M6 - 4
40	OB	80	100	85	71.0	Ø15	13.5	4.5	42	M8 - 4
40	OC	80	100	90	71.0	Ø15	13.5	5.5	42	M6 - 4
40	OD	83	104	90	75.5	Ø15	18.0	4.5	47	M8 - 4
40	OE	94	120	104	72.5	Ø15	15	4.5	44	M6 - 4
40	OF	95	115	98	71.0	Ø15	13.5	4.0	42	M8 - 4
40	OG	95	115	98	82.5	Ø15	25	4.0	54	M8 - 4
Dimensions are subject to change without notice


Size 50		Motor Flange
		A	B	C	E	F	G	H	I	J
	2 Digit Code	Pilot Dia. (mm)	Bolt Circle Dia. (mm)	Flange Square (mm)	Center to Flange Face (mm)	Max Input Shaft Dia. (mm)	Flange Thickness (mm)	Pilot Depth (mm)	Max Shaft Insertion (mm)	Flange Fastener
50	PA	50	70	80	90.5	Ø19	21	3.5	60	M4 - 4@ 45 Degrees
50	PB	50	95	86	92.0	Ø19	23	5.0	62	M6 - 4
50	PC	60	90	80	85.5	Ø19	16	9.0	55	M6 - 4
50	PD	60.0	75	90	92.0	Ø19	23	3.5	62	M5 - 4 @ 45 Degrees
50	PE	60.0	75	90	81.5	Ø19	12	3.5	51	M6 - 4
50	PF	70	90	80	91.5	Ø19	22	3.5	61	M6 - 4
50	PG	70	145	120	85.5	Ø19	16	5.0	55	M8 - 4
50	PH	73	98	86	92.0	Ø19	23	5.0	62	M5 - 4
50	PI	80	90	80	83.0	Ø19	13.5	4.5	53	M6 - 4
50	PJ	80	100	88	84.5	Ø19	15	5.0	54	M6 - 4
50	PK	95	115	100	82.5	Ø19	13	4.0	52	Ø9 - 4
50	PL	95.0	115	100	92.0	Ø19	23	5.0	62	M8 - 4
50	PM	110	130	115	93.5	Ø19	24	6.0	63	M8 - 4
50	PN	110	145	130	99.5	Ø19	30	7.5	69	M8 - 4
50	PO	110	155	135	84.5	Ø19	15	3.5	54	M8 - 4
Dimensions are subject to change without notice


Size 60		Motor Flange
		A	B	Z	E	F	G	H	I	J
	2 Digit Code	Pilot Dia. (mm)	Bolt Circle Dia. (mm)	Flange Square (mm)	Center to Flange Face (mm)	Max Input Shaft Dia. (mm)	Flange Thickness (mm)	Pilot Depth (mm)	Max Shaft Insertion (mm)	Flange Fastener
60	QA	40	63	85	88.5	Ø24	9.5	7.5	49	M5 - 4
60	QB	50	70	92	101.5	Ø24	22.5	5.0	62	M5 - 4
60	QC	56	125.865	110	101.5	Ø24	22.5	5.0	62	M8 - 4
60	QD	60	98.99	85	101.5	Ø24	22.5	5.0	62	M6 - 4
60	QE	60	75	92	101.5	Ø24	22.5	5.0	62	M5 - 4
60	QF	70	90	80	93.5	Ø24	14.5	4.5	54	M6 - 4
60	QG	73	98	86	93.5	Ø24	14.5	4.5	54	M6 - 4
60	QH	73	98	90	101.5	Ø24	22.5	5.0	62	M5 - 4
60	QI	80	100	85	93.5	Ø24	14.5	4.5	54	M6 - 4
60	QJ	80	100	90	101.5	Ø24	22.5	5.0	62	M6 - 4
60	QK	80	100	90	97.0	Ø24	18.0	6.0	57	M6 - 4
60	QL	85	132	112	101.5	Ø24	22.5	5.0	62	M8 - 4
60	QM	95	115	100	98.0	Ø24	19.0	4.5	58	M6 - 4
60	QN	95	115	100	93.5	Ø24	14.5	4.5	54	M8 - 4
60	QO	95	115	100	101.5	Ø24	22.5	5.0	62	M8 - 4
60	QP	95	115	100	101.5	Ø24	22.5	5.0	62	M6 - 4
60	QR	95	135	120	93.5	Ø24	14.5	6.5	54	M8 - 4
60	QS	110	145	120	93.5	Ø24	14.5	3.5	54	M8 - 4
60	QT	110	145	120	93.5	Ø24	14.5	6.5	54	M8 - 4
60	QU	110	145	120	98.5	Ø24	19.5	6.5	59	M8 - 4
60	QV	110	145	120	107.0	Ø24	28.0	6.5	67	M8 - 4
60	QW	110	130	125	104.0	Ø24	25.0	8.5	64	Ø8,5 - 4
60	QX	110	145	130	93.5	Ø24	14.5	3.5	54	M8 - 4
60	QY	110	145	130	98.0	Ø24	19.0	11.0	58	M8 - 4
60	QZ	130	165	142	101.5	Ø24	22.5	5.0	62	Ø13 - 4
Dimensions are subject to change without notice


Size 70		Motor Flange
		A	B	Z	E	F	G	H	I	J
	2 Digit Code	Pilot Dia. (mm)	Bolt Circle Dia. (mm)	Flange Square (mm)	Center to Flange Face (mm)	Max Input Shaft Dia. (mm)	Flange Thickness (mm)	Pilot Depth (mm)	Max Shaft Insertion (mm)	Flange Fastener
70	SA	60	75	92	123.5	Ø28	23	8.0	73	M5 - 4 @ 45 Degrees
70	SB	70	90	90	115.5	Ø28	15	4.5	65	M6 - 4
70	SC	70	105	90	114	Ø28	13	3.0	63	M5 - 4
70	SD	73	98	92	123.5	Ø28	23	5.0	73	M5 - 4
70	SE	80	100	100	123.5	Ø28	23	8.0	73	M6 - 4
70	SF	95	115	100	123.5	Ø28	23	5.0	73	M8 - 4
70	SG	95	115	100	123	Ø28	22	9.0	72	M6 - 4
70	SH	95	130	110	123.5	Ø28	23	5.5	73	M8 - 4
70	SI	110	130	115	131	Ø28	30	5.0	80	M10 - 4
70	SJ	110	145	125	131	Ø28	30	5.0	80	M8 - 4
70	SK	110	145	130	126	Ø28	25	7.0	75	M8 - 4
70	SL	130	165	145	131	Ø28	30	5.0	80	M12 - 4
Dimensions are subject to change without notice


Size 85		Motor Flange
		A	B	Z	E	F	G	H	I	J
	2 Digit Code	Pilot Dia. (mm)	Bolt Circle Dia. (mm)	Flange Square (mm)	Center to Flange Face (mm)	Max. Input Shaft Dia. (mm)	Flange Thickness (mm)	Pilot Depth (mm)	Max Shaft Insertion (mm)	Flange Fastener
85	TA	73.03	98.43	120	141	Ø28	22.5	5.0	73	M6 - 4
85	TB	70	90	120	141	Ø28	22.5	5.0	73	M6 - 4
85	TC	80	100	120	141	Ø28	22.5	5.0	73	M6 - 4
85	TD	95	115	110	134	Ø28	15.5	3.0	66	M8 - 4
85	TE	95	115	120	148.5	Ø28	30	7.0	80	M8 - 4
85	TF	110	130	120	148.5	Ø28	30	7.0	80	M8 - 4
85	TG	110	145	130	148.5	Ø28	30	7.0	80	M8 - 4
85	TH	110	165	142	153.5	Ø28	35	7.0	85	M12 - 4
Dimensions are subject to change without notice


Size 110		Motor Flange
		A	B	Z	E	F	G	H	I	J
	2 Digit Code	Pilot dia. (mm)	Bolt Circle Dia. (mm)	Flange Square (mm)	Center to Flange Face (mm)	Max Input Shaft Dia. (mm)	Flange Thickness (mm)	Pilot Depth (mm)	Max Shaft Insertion (mm)	Flange Fastener
110	UA	70	90	115	155.0	Ø28	23	8.0	70	M6 - 4
110	UB	73.03	98.43	115	155.0	Ø28	23	8.0	70	M5 - 4
110	UC	73.03	98.430	115	155.0	Ø28	23	8.0	70	M6 - 4
110	UD	95	115	110	155.0	Ø28	23	8.0	70	M6 - 4
110	UE	95	115	110	150.5	Ø28	18	5.0	66	M8 - 4
110	UF	110	130	126	150.5	Ø28	18	5.0	66	M8 - 4
110	UG	110	130	130	155.0	Ø28	23	8.0	70	M8 - 4
110	UH	110	145	130	168.5	Ø28	36	8.0	84	M8 - 4
110	UI	130	165	140	150.5	Ø28	18	5.0	66	M10 - 4
110	UJ	130	165	140	150.5	Ø28	18	5.0	66	M8 - 4
110	UK	130	165	145	168.5	Ø28	36	8.0	84	M10 - 4
Dimensions are subject to change without notice