/ FINE PROCESSING OF DRILLS

Honing

Honen customizes bores and cylinders with the correct roundness and surface quality.

Bring your part in, and we will tell you honestly whether honing, cylindrical grinding, or a combination will give the best result.

/ Perfect fit, every time

What honing does to your bore

Lapping of flat precision surfaces at BO-Solutions – high-precision finishing of metal components

With rotating, oscillating grinding stones, the inside of a hole is controlled and refined. Honing corrects three things simultaneously:

  • the size of the bore
  • the cylindricity over the entire length
  • the roughness and the cross-grinding pattern, which improves lubrication

For seals, pistons, bearing bushings, and hydraulic applications, that is often exactly what is needed. Moreover, honing is usually more cost-effective than internal grinding.

/ Everything about Honing

What we can handle

  • Hole diameter: 3 to 180 mm
  • Cylindricity: target value ± 0.002 mm
  • Surface roughness: Ra 0.1 – 0.8 μm
  • Tolerance class: IT6–IT7

 

What is feasible depends on the material, wall thickness, and length of the bore. Submit your drawing, and we will confirm what we guarantee.

Honing machine in operation at BO-Solutions – precision finishing of bushings and cylindrical workpieces

What customers come to us for

  • Hydraulic and pneumatic cylinders
  • Bearing and guide bushings
  • Close-fitting housings
  • Overhaul of existing cylinders that need to be resized

Usually as a finishing piece on a part that we mill or turn ourselves. This way, the dimensional control remains in one hand.

Are you unsure whether to choose honing or internal cylindrical grinding? We think with you based on your application and provide honest, technical advice.

Honing of cylindrical surfaces at BO-Solutions – precise finishing to micrometer tolerances

/ Request a quote

Present your part

Honing cylinders or finishing internal holes?

Undecided between honing and internal cylindrical grinding? Send us your drawing, photo, or 3D model, and we will look together at which approach yields the best result.

Prefer to call: +32 51 24 89 32

Simply upload your drawing, photo, or 3D model via the contact form for a quote.

Technical questions? Contact us

/ FAQ

Frequently asked questions about honing

What is honing?

Honing is a fine machining process for the inside of holes and cylinders. Using rotating, oscillating honing stones, the surface is made smooth and precisely sized. The process improves roundness, cylindricity, and roughness, and creates a cross-hatch pattern that benefits lubrication.

You hone cylinders when:

  • The bore must be exactly round and straight over the entire length
  • The seal or fit is critical (e.g. piston packing, bearing fit)
  • You require a specific roughness level and wear pattern
  • You want to increase the lifespan of the part through better lubrication and less wear

In short: you hone cylinders when “approximately right” is not sufficient, and you want the certainty that the inside is measurably perfect.