Precision locknut for radial clamping ZMA20/38

Designation	Dimension	Remark
d	M20x1	screw thread
d₁	33.00 mm	System diameter
D	38 mm	outer diameter
b	5.00 mm	Width retaining slot
c	10.00 mm
t	2.00 mm	height of groove
h	20.00 mm	height

Designation	Dimension	Remark
	3.00 Nm	Mounting torque thread pin
m	M5	thread pin
M_L	40 Nm	Breakaway torque
M_AL	18 Nm	Mounting torque reference
M_M	0.3 kg * cm²	Mass moment of inertia
	0.120 kg	Weight

Designation	Dimension							Performance data
	d	d₁	D	b	c	t	h	m	M_m	F_aB	M_L	M_AL	M_M
	mm	mm	mm	mm	mm	mm	mm	mm	N_m	k_N	N_m	N_m	kg*cm²
ZMA15/33	M15x1	28.00	33.00	4.00	8.00	2.00	16.00	3	M5	106	30	10	0
ZMA20/38	M20x1	33.00	38.00	5.00	10.00	2.00	20.00	3	M5	174	40	18	0
ZMA25/45	M25x1,5	40.00	45.00	5.00	10.00	2.00	20.00	5	M6	211	60	25	1
ZMA20/52	M20x1	47.00	52.00	5.00	12.50	2.00	25.00	3	M5	218	40	18	1
ZMA30/52	M30x1,5	47.00	52.00	5.00	11.00	2.00	22.00	5	M6	270	70	32	1
ZMA25/58	M25x1,5	52.00	58.00	6.00	14.00	2.50	28.00	5	M6	305	60	25	2
ZMA35/58	M35x1,5	52.00	58.00	6.00	11.00	2.50	22.00	5	M6	300	80	40	2
ZMA40/62	M40x1,5	56.00	62.00	6.00	11.00	2.50	22.00	15	M8	310	95	55	2
ZMA30/65	M30x1,5	59.00	65.00	6.00	15.00	2.50	30.00	5	M6	390	70	32	4
ZMA45/68	M45x1,5	62.00	68.00	6.00	12.00	2.50	24.00	15	M8	360	110	65	3
ZMA35/70	M35x1,5	64.00	70.00	6.00	15.00	2.50	30.00	5	M6	460	80	40	5
ZMA50/75	M50x1,5	68.00	75.00	6.00	12.50	2.50	25.00	15	M8	415	130	85	5
ZMA40/75	M40x1,5	69.00	75.00	6.00	15.00	2.50	30.00	15	M8	520	95	55	7
ZMA45/85	M45x1,5	78.00	85.00	7.00	16.00	3.00	32.00	15	M8	630	110	65	12
ZMA50/92	M50x1,5	84.00	92.00	8.00	16.00	3.50	32.00	15	M8	680	130	85	16
ZMA55/98	M55x2	90.00	98.00	8.00	16.00	3.50	32.00	15	M8	620	150	95	21
ZMA60/98	M60x2	90.00	98.00	8.00	16.00	3.50	32.00	15	M8	680	180	100	20
ZMA65/105	M65x2	97.00	105.00	8.00	16.00	3.50	32.00	15	M8	750	200	120	26
ZMA70/110	M70x2	102.00	110.00	8.00	17.50	3.50	35.00	15	M8	810	220	130	33
ZMA80/120	M80x2	105.00	120.00	8.00	17.50	4.00	35.00	15	M8	810	285	160	45
ZMA75/125	M75x2	117.00	125.00	8.00	19.00	3.50	38.00	15	M8	880	260	150	62
ZMA90/130	M90x2	120.00	130.00	10.00	19.00	4.00	38.00	15	M8	910	360	200	64
ZMA100/140	M100x2	128.00	140.00	12.00	19.00	5.00	38.00	20	M10	940	425	250	83
ZMA90/155	M90x2	146.00	155.00	10.00	19.00	4.00	38.00	15	M8	1,080	360	200	150

Designation	Dimension							Performance data
	d	d₁	D	b	c	t	h	m	M_m	F_aB	M_L	M_AL	M_M
	mm	mm	mm	mm	mm	mm	mm	mm	N_m	k_N	N_m	N_m	kg*cm²
ZMA20/38	M20x1	33.00	38.00	5.00	10.00	2.00	20.00	3	M5	174	40	18	0
ZMA20/52	M20x1	47.00	52.00	5.00	12.50	2.00	25.00	3	M5	218	40	18	1

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Name	Brand	Webshop	Notice
ZMA20/38	HFH		Premium quality, house brand

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