Reduced and enlarged flanges and shafts

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Reduced and enlarged flanges and shafts

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Motor size MEC-IEC	Norma IEC 72-1	Shaft diam.	B5 Flange diam.				B14 Flange diam.
Motor size MEC-IEC	Norma IEC 72-1	D	U*	C	T	B	U	C**	T	B
50	IEC 56 Standard	9	-	-	-	-	-	80	65	50
56	IEC 56 Standard	9	7	120	100	80	M5	80	65	50
	IEC 63	11	-	-	-	-	M5	90	75	60
	IEC 71	14	-	-	-	-	M6	105	85	70
63	IEC 56	9	7	120	100	80	M5	90	65	50
	IEC 63 Standard	11	9,5	140	115	95	M5	90	75	60
	IEC 71	14	-	-	-	-	M6	105	85	70
	IEC 80	14	-	-	-	-	M6	125	100	80
71	IEC 56	9	7	120	100	80	-	-	-	-
	IEC 63	11	9,5	140	115	95	M5	105	75	60
	IEC 71 Standard	14	9,5	160	130	110	M6	105	85	70
	IEC 80	19	-	-	-	-	M6	120	100	80
	IEC 90	19	-	-	-	-	M8	140	115	95
80	IEC 63	11	9,5	140	115	95	-	-	-	-
	IEC 71	14	9,5	160	130	110	M6	120	85	70
	IEC 80 Standard	19	11,5	200	165	130	M6	120	100	80
	IEC 90	24	11,5	200	165	130	M8	140	115	95
	IEC 100/112	24	-	-	-	-	M8	160	130	110
90	IEC 71	14	9,5	160	130	110	-	-	-	-
	IEC 80	19	11,5	200	165	110	M6	140	100	80
	IEC 90 Standard	24	11,5	200	165	130	M8	140	115	95
	IEC 100/112	28	-	-	-	-	M8	160	130	110
100	IEC 71	14	9,5	160	130	110	-	-	-	-
	IEC 80	19	11,5	200	165	130	-	-	-	-
	IEC 90	24	11,5	200	165	130	M8	160	115	95
	IEC 100/112 Standard	28	14,5	250	215	180	M8	160	130	110
	IEC 132	28	-	-	-	-	M10	200	165	130
112	IEC 90	24	11,5	200	165	130	-	-	-	-
	IEC 100/112 Standard	28	14,5	250	215	180	M8	160	130	110
	IEC 132	38	-	-	-	-	M10	200	165	130
132	IEC 100/112	28	14,5	250	215	180	-	-	-	-
	IEC 132 Standard	38	14,5	300	265	230	M10	200	165	130
	IEC 132	38	14,5	300	265	230	-	-	-	-
160	IEC 132	38	18,5	300	265	230	-	-	-	-
160	IEC 160 Standard	42	18,5	350	300	250	M12	250	215	180
180	IEC 180 Standard	48	19	350	300	250	*	*	*	*
200	IEC 200 Standard	55	19	400	350	300	*	*	*	*

* ± 0,5 Tollerance

** It may be subject to change, since it’s a rough value

Balancing factor of rotary parts
On request rigid rotary parts by Neri are dynamically balanced per the standard ISO 1940, 1st part, grade G 6.3.

Tropicalization and condensation drainage holes (per CEI EN 60034-1 / IEC 34-1)
If the motors are installed outdoors or in high-humidity areas >60% (R.H.), the windings may be tropicalized upon request by cold painting with products having high water-repellent qualities, to protect the motor from condensation penetrating into the insulating materials and thereby avoiding damage to the insulating seal.
Also upon request, condensation drainage holes may be provided, closed with caps to be removed once the motor is installed.

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Reduced and enlarged flanges and shafts

Motor size MEC-IEC

Norma IEC 72-1

Shaft diam.

B5 Flange diam.

B14 Flange diam.

D

U*

C

T

B

U

C**

T

B

Motor size
MEC-IEC

Norma
IEC 72-1