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MKA - Standard type (Electroless nickel plating type)

MKA - Standard type (Electroless nickel plating type)
Ordering form

 

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

Features

  1. Total 24 standard models for shaft diameters ranging from φ8 to φ50mm.
  2. Rust protection.
  3. Treatment for stable tightening torque.
  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. Wide design range.

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 MKA series will not generate hydrogen bubbles during electroless nickel plating surface processing. It creates high axial force by equalizing the friction of the screw thread bearing surface.
MKA 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 L4 A P·C·D
MKA-8-21 16.6 4.1 244 92 2.03×10-6 3.9 18.6 14.6 12.6 9.3 23.5 15.4
MKA-10-23 19.6 3.9 192 77 2.92×10-6 3.9 18.8 14.8 12.8 9.5 25.5 17.5
MKA-11-24 22.5 4 174 73 3.45×10-6 3.9 19.8 15.8 13.8 9.5 26.5 18.4
MKA-12-26 36.2 5.9 239 91 5.37×10-6 3.9 22.0 18.0 15.5 10.5 28.5 20.2
MKA-14-28 50.9 7.2 204 84 7.07×10-6 3.9 22.0 18.0 15.5 10.5 30.5 22.2
MKA-15-29 54.8 7.2 205 90 8.58×10-6 3.9 23.0 19.0 16.5 11.5 31.5 23.2
MKA-16-30 58.8 7.3 193 87 1.02×10-5 3.9 23.6 19.6 17.1 12.0 33.0 24.2
MKA-17-31 76.4 8.9 205 97 1.17×10-5 3.9 24.1 20.1 17.6 12.5 33.5 25.2
MKA-18-32 80.3 8.9 166 93 1.31×10-5 3.9 24.1 20.1 17.6 12.5 34.5 26.2
MKA-19-33 85.2 8.9 184 91 1.46×10-5 3.9 24.1 20.1 17.6 12.5 35.5 27.2
MKA-20-38 183 18.3 213 97 3.70×10-5 8.8 29.1 24.1 21.1 15.3 42.0 30.8
MKA-22-40 201 18.3 193 92 4.42×10-5 8.8 29.1 24.1 21.1 15.3 44.0 32.8
MKA-24-42 252 21.0 121 105 5.45×10-5 8.8 30.1 25.1 22.1 16.3 46.0 34.8
MKA-25-43 264 21.1 212 102 6.15×10-5 8.8 31.1 26.1 23.1 17.3 47.0 35.8
MKA-28-46 295 21.1 212 107 8.15×10-5 8.8 31.6 26.6 23.1 17.3 50.0 38.8
MKA-30-48 396 26.4 198 102 9.45×10-5 8.8 31.6 26.6 23.1 17.3 52.0 40.8
MKA-32-50 423 26.4 192 103 1.14×10-4 8.8 32.6 27.6 24.1 18.3 54.0 42.8
MKA-35-57 548 31.3 207 105 2.12×10-4 15.7 36.0 30.0 26.0 19.5 62.0 48.4
MKA-38-60 741 39.0 208 110 2.62×10-4 15.7 36.5 30.5 26.5 20.0 65.0 51.4
MKA-40-62 779 39.0 202 110 3.00×10-4 15.7 37.0 31.0 27.0 20.5 67.0 53.4
MKA-42-64 823 39.2 192 106 3.32×10-4 15.7 37.0 31.0 27.0 20.5 69.0 55.4
MKA-45-67 882 39.2 184 104 3.95×10-4 15.7 37.5 31.5 27.5 21.0 72.0 58.4
MKA-48-70 1117 46.5 206 118 4.75×10-4 15.7 38.0 32.0 27.5 21.0 75.0 61.4
MKA-50-72 1362 54.4 202 119 5.35×10-4 15.7 38.5 32.5 28.0 21.5 77.0 63.4

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
SS400
S10C
SUS304
S15C
S20C
S30C
S35C

S45C
SUS410

S55C
SUS403
MKA-8-21 M4×12 4 8,500 35 8 21 8 15 35 33 32 30 29 28 27
MKA-10-23 M4×12 4 8,700 40 10 23 10 16 35 34 33 31 31 30 29
MKA-11-24 M4×12 4 9,300 45 11 24 11 16 36 34 33 32 31 31 30
MKA-12-26 M4×15 6 9,400 53 12 26 12 17 43 41 39 37 36 35 33
MKA-14-28 M4×15 6 9,500 61 14 28 14 17 44 42 41 39 38 37 35
MKA-15-29 M4×15 6 10,200 66 15 29 15 18 47 45 43 41 40 39 37
MKA-16-30 M4×15 6 10,300 75 16 30 16 18 48 46 44 42 41 40 38
MKA-17-31 M4×15 8 10,400 75 17 31 17 19 53 50 48 45 44 42 40
MKA-18-32 M4×15 8 10,600 80 18 32 18 19 54 50 48 46 45 43 41
MKA-19-33 M4×15 8 10,600 81 19 33 19 19 55 51 49 47 46 44 42
MKA-20-38 M5×18 8 11,100 144 20 38 20 23 64 61 58 55 54 51 49
MKA-22-40 M5×18 8 11,400 165 22 40 22 23 65 62 60 57 56 53 51
MKA-24-42 M5×18 8 11,600 180 24 42 24 24 74 70 67 63 61 58 56
MKA-25-43 M5×18 8 12,100 188 25 43 25 25 75 71 67 64 62 59 57
MKA-28-46 M5×18 10 12,500 195 28 46 28 25 82 77 74 70 68 64 61
MKA-30-48 M5×18 10 13,000 208 30 48 30 25 86 81 77 71 69 66 63
MKA-32-50 M5×18 10 13,300 219 32 50 32 26 87 82 77 75 73 69 66
MKA-35-57 M6×20 8 13,500 325 35 57 35 28 100 95 91 86 83 79 75
MKA-38-60 M6×20 10 14,000 362 38 60 38 28 109 103 98 92 89 84 80
MKA-40-62 M6×20 10 14,500 380 40 62 40 29 113 106 101 95 92 87 83
MKA-42-64 M6×20 10 15,000 405 42 64 42 29 114 107 102 97 94 89 85
MKA-45-67 M6×20 10 16,000 435 45 67 45 30 117 111 106 100 97 92 88
MKA-48-70 M6×20 12 16,500 460 48 70 48 30 135 126 119 112 108 101 96
MKA-50-72 M6×20 14 17,000 485 50 72 50 30 140 130 123 115 111 104 99
  • 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 : MKA-20-38(m6)]
  • MKA-35-57 is applicable to motor shaft tolerance +0.01.