MR - Thin type

MR - Thin type
Ordering form

 

Carbon steel / Centering / 2D CAD / 3D CADInstallation Manual


Features

  1. Total 26 standard models for shaft diameters ranging from φ5 to φ50mm.
  2. Hub outer diameter can be minimized.
  3. Centering function.
  4. The tapered portion is difficult to come off due to the gradual taper design.
  5. Straight through-hole bore processing is possible.
  6. Suitable for short hub.
  7. Saving installation time.

Structure

Structure

Concept of frictional connection

Concept of frictional connection

Material / Surface treatment

  Material Surface treatment
Inner ring Equivalent to S45C -
Outer ring Equivalent to S45C -
Locking screw SCM 435 Low frictional coating
  • Coated screws are red.

Comparison of minimum hub

outer diameter

Comparison of minimum hub outer diameter

Mecha-lock MR series have a centering function and are suitable for small hub diameters.
MR series are also suitable for short hubs having thin contact surface pressure sections.

Usage example

Usage example

Installation example

Installation example

Specifications / Sizes

Specifications / Sizes

Unit : mm
Type


      d    D
Maximum
torque
capacity
N·m
Thrust
capacity

kN
Surface pressure Moment
of
inertia
kg·m2
Tightening
torque

N·m
Weight


g
Sizes
Shaft

N/mm2
Hub

N/mm2
L L2 L3 A P·C·D
MR-5-12 9 3.45 188 99 2.09×10-6 1.7 36 22 19 10 23 15.5
MR-6-12 11 3.45 156 99 2.08×10-6 1.7 34 22 19 10 23 15.5
MR-8-15 25 6.09 174 116 5.61×10-6 4 61 27 23 12 28 19.5
MR-10-18 44 8.71 193 134 9.15×10-6 4 78 27 23 12 31.5 22.5
MR-11-18 48 8.71 176 134 9.07×10-6 4 75 27 23 12 31.5 22.5
MR-12-20 53 8.71 161 121 1.18×10-5 4 86 27 23 12 33.5 24.5
MR-14-22 61 8.71 138 110 1.30×10-5 4 94 27 23 12 35.5 26.5
MR-15-23 115 15.3 178 150 2.57×10-5 8 135 32 27 14 38.5 28.5
MR-16-24 123 15.3 167 144 2.84×10-5 8 140 32 27 14 39.5 29.5
MR-17-25 131 15.3 158 138 3.13×10-5 8 146 32 27 14 40.5 30.5
MR-18-26 210 23.2 195 198 6.17×10-5 14 221 36 30 14 46 33
MR-19-27 221 23.2 185 191 6.71×10-5 14 228 36 30 14 47 34
MR-20-28 233 23.2 176 184 7.29×10-5 14 235 36 30 14 48 35
MR-22-32 256 23.2 146 141 1.03×10-4 14 287 38 32 16 52 39
MR-24-34 279 23.2 134 133 1.19×10-4 14 302 38 32 16 54 41
MR-25-34 291 23.2 128 133 1.18×10-4 14 293 38 32 16 54 41
MR-28-39 488 34.8 146 139 1.79×10-4 14 378 42 36 20 59 46
MR-30-41 523 34.8 136 132 2.04×10-4 14 396 42 36 20 61 48
MR-32-43 558 34.8 128 126 2.31×10-4 14 414 42 36 20 63 50
MR-35-47 813 46.4 145 140 3.08×10-4 14 484 44 38 22 67 54
MR-38-50 883 46.4 133 131 3.64×10-4 14 512 44 38 22 70 57
MR-40-53 929 46.4 127 124 4.34×10-4 14 560 44 38 22 73 60
MR-42-55 976 46.4 121 119 4.81×10-4 14 580 44 38 22 75 62
MR-45-59 1910 84.5 160 148 9.76×10-4 34 962 58.5 50.5 30 84 69
MR-48-62 2040 84.5 150 141 1.11×10-3 34 1000 58.5 50.5 30 87 72
MR-50-65 2120 84.5 144 135 1.29×10-3 34 1090 58.5 50.5 30 90 75

Shaft / Hub

Unit : mm
Type

      d    D
Locking screw Price

¥
Processing sizes Yield point stress for each smallest
outer diameter of hub material. HD
Size pcs D2 d2 d3 HL 206 225 245 274 294 343 392
FC350
S10C

S15C

S20C

S30C

S35C

S45C

S55C
MR-5-12 M3 × 8 4 2,600 5 12 5 12 23 23 23 23 23 23 23
MR-6-12 M3 × 8 4 2,600 6 12 6 12 23 23 23 23 23 23 23
MR-8-15 M4×10 4 2,700 8 15 8 14 29 28 28 28 28 28 28
MR-10-18 M4×10 5 2,900 10 18 10 14 40 36 34 31.5 31.5 31.5 31.5
MR-11-18 M4×10 5 3,000 11 18 11 14 40 36 34 31.5 31.5 31.5 31.5
MR-12-20 M4×10 5 3,100 12 20 12 14 40 37 35 33.5 33.5 33.5 33.5
MR-14-22 M4×10 5 3,200 14 22 14 14 40 38 36 35.5 35.5 35.5 35.5
MR-15-23 M5×12 4 3,300 15 23 15 16 58 52 47 43 41 38.5 38.5
MR-16-24 M5×12 4 3,400 16 24 16 16 58 52 48 44 42 39.5 39.5
MR-17-25 M5×12 4 3,400 17 25 17 16 57 52 48 44 42 40.5 40.5
MR-18-26 M6×14 4 3,500 18 26 18 16 - - 80 65 59 51 46
MR-19-27 M6×14 4 3,500 19 27 19 16 - - 77 64 59 51 47
MR-20-28 M6×14 4 3,600 20 28 20 16 - 89 75 64 59 51 48
MR-22-32 M6×14 4 3,800 22 32 22 18 74 67 62 57 54 52 52
MR-24-34 M6×14 4 3,900 24 34 24 18 74 68 63 58 56 54 54
MR-25-34 M6×14 4 4,000 25 34 25 18 74 68 63 58 56 54 54
MR-28-39 M6×14 6 4,100 28 39 28 22 89 81 75 69 66 60 59
MR-30-41 M6×14 6 4,300 30 41 30 22 88 81 75 70 67 62 61
MR-32-43 M6×14 6 4,400 32 43 32 22 88 81 76 71 68 64 63
MR-35-47 M6×14 8 4,500 35 47 35 24 108 98 90 83 79 73 69
MR-38-50 M6×14 8 4,500 38 50 38 24 106 98 91 85 81 75 71
MR-40-53 M6×14 8 4,700 40 53 40 24 107 99 93 87 84 78 74
MR-42-55 M6×14 8 4,800 42 55 42 24 107 100 94 88 85 79 76
MR-45-59 M8×18 8 5,000 45 59 45 32 146 130 119 108 103 94 88
MR-48-62 M8×18 8 5,100 48 62 48 32 144 130 120 110 105 96 91
MR-50-65 M8×18 8 5,600 50 65 50 32 143 130 121 112 107 99 94
  • Mecha-lock can be manufactured for other motor shaft tolerances (j6.k6.m6). Shaft tolerance should be specified after selecting the type when ordering. [example : MR-20-28(m6)]
  • MR-35-47 is applicable to motor shaft tolerance +0.01.