NIKKI Precision Locknut

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MR 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 grinding process.

‧Material：SCM 440

‧Hardness：HRC 28-32

‧Precision：ISO 4H

‧Axial Run-out：0.002 mm

mf剖面圖

<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
MR6X0.5P	16	8	3	2	11	7.8	110	M4	22
MR8X0.75P	16				11	10.2	150
MR10X0.75P	18				13	11	180
MR12X1.0P	24				19	20	190
MR15X1.0P	28				23	30	220
MR17X1.0P	32	10	4	2	27	40	280	M5	48
MR20X1.0P	35				30	50	300
MR20X1.5P	35				30	50	300
MR25X1.5P	42	12	5	2	36	75	550	M6	80
MR30X1.5P	48				43	90	750
MR35X1.5P	53				48	110	900
MR40X1.5P	58	14	6	2.5	52	130	1200
MR45X1.5P	65				59	150	1300
MR50X1.5P	70				64	175	1500
MR55X2.0P	75	16	7	3	68	225	1700	M8	190
MR60X2.0P	80				73	250	2000
MR65X2.0P	85				78	290	2200
MR70X2.0P	92	18	8	3.5	84	340	2400
MR75X2.0P	98				90	360	2600
MR80X2.0P	105				96	430	2800
MR85X2.0P	112				104	460	3000
MR90X2.0P	118	20	10	4	108	520	3200
MR100X2.0P	128	20	10	4	118	570	3600
MR110X2.0P	145	24	12	5	132	640	4000
MR120X2.0P	155				142	680	4500
MR130X2.0P	165				152	730	5000
MR140X2.0P	180	26			165	800	5500	M10	360
MR150X2.0P	195	26			180	850	6000
MR160X3.0P	210	28			190	980	6500
MR170X3.0P	220	28			200	1030	7000
MR180X3.0P	230	30			210	1140	7500
MR190X3.0P	240				220	1200	8000
MR200X3.0P	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: MR25X1.5P-L
‧If inch thread required, please refer to the TYPE & Pitch. For example: MR25-U20
‧To prevent the locknuts are in short supply, please send your order in advance.