Nikki Co., Ltd.
Nikki MR Series Precision Lock Nuts
Manufacturer: Nikki Co., Ltd.
Model: MR Series
Features
The set screw is perpendicular to the axial direction and is designed to be divided into three parts (equally spaced at 120 degrees).
This is a high-precision lock nut with a polished finish that has runout accuracy of less than 3 microns in the thread direction.
Therefore, by tightening the set screws evenly from three directions, it is easy to achieve concentricity with the shaft, allowing for stable assembly with high precision and little runout in the axial direction in a short amount of time.
Specification
| Material | SCM440 |
|---|---|
| Hardness | HRC28-32 |
| Accuracy | ISO 4H |
Standard Model List
Model number | Size | Set screw | |||||
| D | h | g | t | d | Maximum torque Nm | Standard | |
| MR8×0.75P | 16 | 8 | 3 | 2 | 11 | 2.5 | M4 |
| MR10×0.75P | 18 | 13 | |||||
| MR12×1.0P | twenty four | 19 | |||||
| MR15×1.0P | 28 | twenty three | |||||
| MR17×1.0P | 32 | 10 | 4 | 2 | 27 | 4.5 | M5 |
| MR20×1.0P | 35 | 30 | |||||
| MR25×1.5P | 42 | 12 | 5 | 2 | 36 | 8 | M6 |
| MR30×1.5P | 48 | 43 | |||||
| MR35×1.5P | 53 | 48 | |||||
| MR40×1.5P | 58 | 14 | 6 | 2.5 | 52 | ||
| MR45×1.5P | 65 | 59 | |||||
| MR50×1.5P | 70 | 64 | |||||
| MR55×2.0P | 75 | 16 | 7 | 3 | 68 | 18 | M8 |
| MR60×2.0P | 80 | 73 | |||||
| MR65×2.0P | 85 | 78 | |||||
| MR70×2.0P | 92 | 18 | 8 | 3.5 | 84 | ||
| MR75×2.0P | 98 | 90 | |||||
| MR80×2.0P | 105 | 96 | |||||
| MR85×2.0P | 112 | 104 | |||||
| MR90×2.0P | 118 | 20 | 10 | 4 | 108 | ||
| MR95×2.0P | one two three | 113 | |||||
| MR100×2.0P | 128 | 118 | |||||
*There are 6 hook grooves for M100 and above. M100 and above are made to order.
