Centerless Wheels

Toolgal supplies a complete range of centerless grinding, polishing and straightening services.

Toolgal matches a specific grit size to the required application:

  • Rough grinding – with large diamond grit (D126) is used
  • Exultant finishing – with a micron grit size (D25)
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1A1 CENTERLESS

1A1 CENTERLESS Bonds avilable
D T X
305 101.6,150, 205 6 CB
350 101.6,150, 205 6 CB
400 101.6,150, 205 6 CB
450 101.6,150, 205 6 CB


Other dimensions available on request – Please indicate required D and T

Grain Size Vs. Surface Quality (Ra)

Toolgal can assure you a very tight tolerance for any required Recording to the table below:

FEPA GRIT MEAN ROUGHNESS RA (μm) SURFACE QUALITY GRINDING PROCESS
DIAMOND CBN DIAMOND CBN N
B301 2.1 N8
B251 1.77 N8-N7 Very Rough Grinding
B213 1.41 N7
B181 1.12 N7-N6
B151 0.75 N6
B126 0.66 N6
D181 B107 0.53 0.53 N6-N5
D151 B91 0.5 0.5 N6-N5 Rough Grinding
D126 B76 0.45 0.45 N6-N5
D107 B64 0.4 0.4 N5
D91 B54 0.33 0.33 N5-N4 Semi Finish Grinding
D76 B46 0.25 0.25 N5-N4
D64 0.18 N4
D54 0.16 N4-N3 Fine Grinding
D46 0.15 N4-N3
MD24 0.12 N3
MD20 0.05 N3-N2 Ultrafine Grinding
MD10 0.025 N2-N1

N1 N2 N3 N4 N5 N6 N7 N8
Ra (μm) 0.025 0.05 0.1 0.2 0.4 0.8 1.6 3.2
Ra (μm) 0.5 0.8 1.25 2.5 5 8 16.01 32
Ra (μm) 0.4 0.63 1 0.2 4 6.3 10 16
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