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.twProducts
Precision Grinding Locknuts
MRRA Precision Locknut (Radial Locking)
MRRA 系列 MRRA 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 | Dimensions | Screw | Screw Torque | |||||
| d0 | D | h | g | t | d | DIN | MAX kg-cm | |
| MRRA15/32 | M15X1.0P | 32 | 20 | 4 | 2 | 27 | M5 | 48 |
| MRRA17/38 | M17X1.0P | 38 | 5 | 33 | ||||
| MRRA20/38 | M20X1.0P | 38 | 33 | |||||
| MRRA20/38 | M20X1.5P | 38 | 33 | |||||
| MRRA20/52 | M20X1.0P | 52 | 25 | 47 | ||||
| MRRA20/52 | M20X1.5P | 52 | 47 | |||||
| MRRA25/45 | M25X1.5P | 45 | 20 | 40 | M6 | 80 | ||
| MRRA25/58 | M25X1.5P | 58 | 24 | 6 | 2.5 | 52 | ||
| MRRA30/52 | M30X1.5P | 52 | 22 | 5 | 2 | 47 | ||
| MRRA30/65 | M30X1.5P | 65 | 30 | 6 | 2.5 | 59 | ||
| MRRA35/58 | M35X1.5P | 58 | 22 | 52 | ||||
| MRRA35/70 | M35X1.5P | 70 | 30 | 64 | ||||
| MRRA40/62 | M40X1.5P | 62 | 22 | 56 | M8 | 190 | ||
| MRRA40/75 | M40X1.5P | 75 | 30 | 69 | ||||
| MRRA45/68 | M45X1.5P | 68 | 24 | 62 | ||||
| MRRA45/85 | M45X1.5P | 85 | 32 | 7 | 3 | 78 | ||
| MRRA50/75 | M50X1.5P | 75 | 25 | 6 | 2.5 | 68 | ||
| MRRA50/92 | M50X1.5P | 92 | 32 | 8 | 3.5 | 84 | ||
| MRRA55/98 | M55X2.0P | 98 | 90 | |||||
| MRRA60/98 | M60X2.0P | 98 | 90 | |||||
| MRRA65/105 | M65X2.0P | 105 | 97 | |||||
| MRRA70/110 | M70X2.0P | 110 | 35 | 102 | ||||
| MRRA75/125 | M75X2.0P | 125 | 38 | 117 | ||||
| MRRA80/120 | M80X2.0P | 120 | 35 | 10 | 4 | 105 | ||
| MRRA90/130 | M90X2.0P | 130 | 38 | 120 | ||||
| MRRA90/155 | M90X2.0P | 155 | 146 | |||||
| MRRA100/140 | M100X2.0P | 140 | 12 | 5 | 128 | M10 | 360 | |
| MRRA110/180 | M110X2.0P | 180 | 40 | 14 | 6 | 167 | ||
| MRRA130/210 | M130X2.0P | 210 | 16 | 7 | 205 | |||
| MRRA150/230 | M150X2.0P | 230 | 42 | 18 | 8 | 215 | M12 | 560 |
