NIKKI Precision Locknut

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Home>Products>MRZ Locknuts

MRZ Precision Locknut (Radial Locking)：

The setscrews of locknut intersect a 90° angle with axis which drive the locking brass perfectly stuck on the thread of shaft.

‧No thrust washer or keyway needed.

‧Easy to assemble and disassemble.

‧Can be re-used if handled properly.

‧The series locknut is designed for special area in where space is limited.

‧The connecting face and thread area are all produced by high precision turning process.

‧Material：SCM 440

‧Hardness：HRC 28-32

‧Precision：ISO 4H

‧Axial Run-out：0.005 mm

<click to enlarge the drawing>

NIKKI Product Spec:

TYPE & Pitch	Dimensions					Axial Load Static kN	Loosening Torque kg-cm	Screw	Screw Torque
TYPE & Pitch	D	h	g	t	d	Axial Load Static kN	Loosening Torque kg-cm	DIN	MAX kg-cm
MRZ6 x 0.5P	16	8	3	2	11	7.8	110	M4	22
MRZ8 x 0.75P	16				11	10.2	150
MRZ10 x 0.75P	18				13	11	180
MRZ12 x 1.0P	20				18	20	190
MRZ15 x 1.0P	25				21	30	220
MRZ17 x 1.0P	28	10	4	2	23	40	280	M5	48
MRZ20 x 1.0P	32				27	50	300
MRZ20 x 1.5P	32				27	50	300
MRZ25 x 1.5P	38	12	5	2	33	75	550	M6	80
MRZ30 x 1.5P	45				40	90	750
MRZ35 x 1.5P	52				47	110	900
MRZ40 x 1.5P	58	14	6	2.5	52	130	1200
MRZ45 x 1.5P	65				59	150	1300
MRZ50 x 1.5P	70				64	175	1500
MRZ55 x 2.0P	75	16	7	3	68	225	1700	M8	190
MRZ60 x 2.0P	80				73	250	2000
MRZ65 x 2.0P	85				78	290	2200
MRZ70 x 2.0P	92	18	8	3.5	84	340	2400
MRZ75 x 2.0P	98				90	360	2600
MRZ80 x 2.0P	105				96	430	2800
MRZ85 x 2.0P	112				104	460	3000
MRZ90 x 2.0P	118	20	10	4	108	520	3200
MRZ100 x 2.0P	128	20	10	4	118	570	3600
MRZ110 x 2.0P	145	24	12	5	132	640	4000
MRZ120 x 2.0P	155				142	680	4500
MRZ130 x 2.0P	165				152	730	5000
MRZ140 x 2.0P	180	26			165	800	5500	M10	360
MRZ150 x 2.0P	195	26			180	850	6000
MRZ160 x 3.0P	210	28			190	980	6500
MRZ170 x 3.0P	220	28			200	1030	7700
MRZ180 x 3.0P	230	30			210	1140	7500
MRZ190 x 3.0P	240				220	1200	8000
MRZ200 x 3.0P	250				230	1250	8500

Remark

‧When ordering above products, please refer to the TYPE & Pitch.
‧If left hand thread required, please notify “L” after the TYPE & Pitch. For example: MRZ25X1.5P-L
‧If inch thread required, please refer to the TYPE & Pitch. For example: MRZ25-U20
‧To prevent the locknuts are in short supply, please send your order in advance.