Nikki Co., Ltd.
Nikki MKR Series Precision Lock Nuts
Manufacturer: Nikki Co., Ltd.
Model: MKR Series
Features
By making slits in the nut itself and tightening the cap bolt with an even torque, the entire surfaces of the threaded parts of the shaft and nut come into contact, allowing for a great deal of locking force.
This is a high-precision lock nut with a runout accuracy of less than 5 microns on the contact surface in the thread direction.
Specification
| Material | SCM440 |
|---|---|
| hardness | HRC28-32 |
| accuracy | ISO 4H |
Standard Model List
Model number | Size | Cap bolt | ||||||||
| D | h | e | d1 | d2 | d3 | d4 | c | Maximum torque Nm | Standard | |
| MKR10×0.75P | twenty four | 14 | 6.6 | twenty two | 17 | 3.2 | 2.5 | 2.5 | 1 | 3-M3×10 |
| MKR10×1.0P | 15 | |||||||||
| MKR12×1.0P | 26 | 14 | twenty five | 19 | 3 | |||||
| MKR12×1.5P | 15 | |||||||||
| MKR14×1.5P | 32 | 16 | 7.6 | 30 | 22.5 | 4.3 | 4 | 3 | 2.5 | 3-M4×10 |
| MKR15×1.0P | 33 | 31 | 23.5 | |||||||
| MKR16×1.5P | 34 | 18 | – | – | 24.5 | 5 | 2.5 | 4-M4×12 | ||
| MKR17×1.0P | 35 | 25.5 | ||||||||
| MKR18×1.5P | 36 | 26.5 | ||||||||
| MKR20×1.0P | 40 | 30.5 | ||||||||
| MKR20×1.5P | ||||||||||
| MKR22×1.5P | ||||||||||
| MKR24×1.5P | 42 | 32.5 | ||||||||
| MKR25×1.5P | 45 | 20 | 36.5 | 5 | 6.5 | 2.5 | 4-M4×14 | |||
| MKR26×1.5P | ||||||||||
| MKR28×1.5P | 46 | 38.5 | ||||||||
| MKR30×1.5P | 48 | 40.5 | ||||||||
| MKR32×1.5P | 50 | twenty two | 42.5 | 7 | 2.5 | 4-M4×16 | ||||
| MKR35×1.5P | 53 | 45.5 | ||||||||
| MKR38×1.5P | 58 | 48.5 | ||||||||
| MKR40×1.5P | 50.5 | |||||||||
| MKR42×1.5P | 60 | 52.5 | ||||||||
| MKR45×1.5P | 68 | 58 | 6 | 6.5 | 2.5 | 6-M4×16 | ||||
| MKR48×1.5P | twenty five | 59.5 | 9 | 2.5 | 6-M4×18 | |||||
| MKR50×1.5P | 70 | 61.5 | ||||||||
| MKR52×1.5P | 72 | 63.5 | ||||||||
| MKR55×1.5P | 75 | 66.5 | ||||||||
| MKR55×2.0P | ||||||||||
| MKR58×1.5P | 82 | 26 | 72.5 | 5.3 | 4.5 | 6-M5×18 | ||||
| MKR60×1.5P | 84 | 74.5 | ||||||||
| MKR60×2.0P | ||||||||||
| MKR62×1.5P | 86 | 28 | 76.5 | 10.5 | 4.5 | 6-M5×20 | ||||
| MKR65×1.5P | 88 | 78.5 | ||||||||
| MKR65×2.0P | ||||||||||
| MKR68×1.5P | 95 | 83 | 8 | 9.5 | ||||||
| MKR70×1.5P | 85 | |||||||||
| MKR70×2.0P | ||||||||||
| MKR72×1.5P | 98 | 86 | 6.4 | 8.5 | 8 | 6-M6×20 | ||||
| MKR75×1.5P | 100 | 88 | ||||||||
| MKR75×2.0P | ||||||||||
| MKR80×2.0P | 110 | 32 | 95 | 11 | ||||||
| MKR85×2.0P | 115 | 100 | ||||||||
| MKR90×2.0P | 120 | 108 | ||||||||
| MKR95×2.0P | 125 | 113 | ||||||||
| MKR100×2.0P | 130 | 118 | ||||||||
*There are 6 hook grooves for M100 and above. M100 and above are made to order.
