7YRS
HSIANG KAI FU CO., LTD.
886-4-23502590
886-4-23503161
No.9, Jingke 6th Rd., Nantun Dist., Taichung City 408, Taiwan
www.nikki.com.tw

Products

Precision Grinding Locknuts
MR Precision Locknut (Radial Locking):
MR 系列 MR Series

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:JIS SCM440/
DIN42CrMo4/AISI 4140

‧Hardness:HRC 28-32

‧Precision:ISO 4H

‧Thread Run-out with Axial:
0.002 mm

Specification

NIKKI Product Spec

TYPE & Pitch Dimensions Axial Load Static
kN
Loosening Torque 
kg-cm
Screw Screw Torque
D h g t d DIN MAX kg-cm
MR6X0.5P 16 8 3 2 11 7.8 110 M4 22
MR8X0.75P 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 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 128 118 570 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 195 180 850 6000
MR160X3.0P 210 28 190 980 6500
MR170X3.0P 220 200 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.
 

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