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MKR - Thin type (Electroless nickel plating type)

MKR - Thin type (Electroless nickel plating type)
Ordering form

 

Ni plated / Centering / 2D CAD / 3D CADInstallation Manual


Features

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

Structure

Structure

Concept of frictional connection

Concept of frictional connection

Material / Surface treatment

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

Cost comparison

Cost comparison

Mecha-lock MKR series do not generate hydrogen bubbles during the electroless nickel plating process. It produces high axial force by equalizing the friction of the screw thread bearing surface.
MKR series are rust-proof products that save costs.

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
Sizes
Shaft

N/mm2
Hub

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

Shaft / Hub

Unit : mm
Type

      d    D
Locking screw Price

¥
Weight

g
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
SUS304
S15C S20C
S30C
SUS201
S35C
S45C
SUS410

S55C
SUS304
MKR-5-12 M3 × 8 4 3,900 36 5 12 5 12 23 23 23 23 23 23 23
MKR-6-12 M3 × 8 4 3,900 34 6 12 6 12 23 23 23 23 23 23 23
MKR-8-15 M4×10 4 4,050 61 8 15 8 14 29 28 28 28 28 28 28
MKR-10-18 M4×10 5 4,350 78 10 18 10 14 40 36 34 31.5 31.5 31.5 31.5
MKR-11-18 M4×10 5 4,500 75 11 18 11 14 40 36 34 31.5 31.5 31.5 31.5
MKR-12-20 M4×10 5 4,650 86 12 20 12 14 40 37 35 33.5 33.5 33.5 33.5
MKR-14-22 M4×10 5 4,800 94 14 22 14 14 40 38 36 35.5 35.5 35.5 35.5
MKR-15-23 M5×12 4 4,950 135 15 23 15 16 58 52 47 43 41 38.5 38.5
MKR-16-24 M5×12 4 5,100 140 16 24 16 16 58 52 48 44 42 39.5 39.5
MKR-17-25 M5×12 4 5,100 146 17 25 17 16 57 52 48 44 42 40.5 40.5
MKR-18-26 M6×14 4 5,250 221 18 26 18 16 - - 80 65 59 51 46
MKR-19-27 M6×14 4 5,250 228 19 27 19 16 - - 77 64 59 51 47
MKR-20-28 M6×14 4 5,400 235 20 28 20 16 - 89 75 64 59 51 48
MKR-22-32 M6×14 4 5,700 287 22 32 22 18 74 67 62 57 54 52 52
MKR-24-34 M6×14 4 5,850 302 24 34 24 18 74 68 63 58 56 54 54
MKR-25-34 M6×14 4 6,000 293 25 34 25 18 74 68 63 58 56 54 54
MKR-28-39 M6×14 6 6,150 378 28 39 28 22 89 81 75 69 66 60 59
MKR-30-41 M6×14 6 6,450 396 30 41 30 22 88 81 75 70 67 62 61
MKR-32-43 M6×14 6 6,600 414 32 43 32 22 88 81 76 71 68 64 63
MKR-35-47 M6×14 8 6,750 484 35 47 35 24 108 98 90 83 79 73 69
MKR-38-50 M6×14 8 6,750 512 38 50 38 24 106 98 91 85 81 75 71
MKR-40-53 M6×14 8 7,050 560 40 53 40 24 107 99 93 87 84 78 74
MKR-42-55 M6×14 8 7,200 580 42 55 42 24 107 100 94 88 85 79 76
MKR-45-59 M8×18 8 7,500 962 45 59 45 32 146 130 119 108 103 94 88
MKR-48-62 M8×18 8 7,650 1000 48 62 48 32 144 130 120 110 105 96 91
MKR-50-65 M8×18 8 8,400 1090 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 : MKR-20-28(m6)]
  • MKR-35-47 is applicable to motor shaft tolerance +0.01.