Gear Grinding

Gear Grinding is a finishing process to remove considerable amount of metal after the hear treatment operation to obtain a predetermined quality gear. It is done to meet the exact requirements of form, dimension, and surface texture.

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Dia (mm) 80-508
Width (mm) 10 - 125
Bore (mm) 20 - 304.8

CUMI - The pioneer of total solutions in grinding technology, offering end to end abrasive technology through our products and value added services.

Gear grinding has made siginificant advances over the years. We have upgraded our product and process technology in order to meet the emerging trends. We have developed new generation Single Rip and Multi Rip grinding wheels with Micro- Crystalline abrasive (MSB, 83R) along with our Krystal bonds (V500, V736). We have state of the art profiling facility to meet the single and multi start profile accuracy.

What we offer:
Products:
Grinding Wheels:
  • Single Rip wheel - Conventional and Micro - Crystaline Abrasives
  • Mutli Tib Wheel - Conventional and Micro - Crystaline Abrasives
  • Gear Grinding Wheel

We offer :
  • Faster Delivery
  • Profile Correction / Re-Profiling
  • Value Projects for grinding cost reduction
  • Process Monitoring and Optimization
  • Application Engineering Services & Training

With significant investments made in improving the ability and the capacity for producing world class gear grinding wheels, CUMI now is geared up to offer solutions that will significantly reduce your grinding costs.

Single rib:

Gearing grinding is a finishing process to remove considerable amount of metal after the heat treatment operation to obtain a predetermined quality gear. Gear Grinding - is done to meet the exact requirement of form, Dimension and Surface Texture. Gear Grinding gives a very high degree of dimensional accuracy.

Methods of Gear Grinding
Form / Profile Grinding
  • This Process is normally used in Multi Rib Gear Grinding, for Machines like Reishauer or Csepel
  • In this process, the wheel is in constant touch with the work piece.

Generating Type Method
  • This process is normally used in Single Rib Gear Grinding for machines like Niles, Maag, Hoefler Machines.
  • In this Process, the wheel progressively approaches the root of the gears from the tip of the gear tooth.

Single rib Gear Grinding Machines for Niles Machine:

CUMI Regular RA60 H7 VF8 / RAA60 J6 V206
  • Gear Module: 6.0
  • No. of Teeth: 15
  • Depth of Cut / Flank ( R/SF/F): 0.10 / 0.08 / 0.03 mm
  • No. of Passes: 3
  • Dressing Freq. : Once in 15 Teeth
  • Dressing Depth: 0.05 mm
  • Quality Profile Erro / Lead Error: OK

CUMI New Wheels RA46 H8 V736
  • Gear Module: 6.0
  • No. of Teeth: 15
  • Depth of Cut / Flank ( R/SF/F): 0.15 / 0.06 mm
  • No. of Passes: 2
  • Dressing Freq. : Once in 15 Teeth
  • Dressing Depth: 0.03 mm
  • Quality Profile Erro / Lead Error: OK

CUMI New Wheels RA46 H 10 V736
  • Gear Module: Above 6.0
  • No. of Teeth: 12
  • Depth of Cut / Flank ( R/SF/F): 0.15 / 0.06 mm
  • No. of Passes: 2
  • Dressing Freq. : Once in 15 Teeth
  • Dressing Depth: 0.03 mm
  • Quality Profile Erro / Lead Error: OK

Sing Rib Gear Grinding for CNC Machines - Hega Hoefler / Gleason

Burka Kosmos EKW70/80  /  SK13W 70/80
  • Gear Module: Up to 18
  • No. of Teeth: 35
  • Depth of Cut / Flank ( R/F): 0.25/0.1 mm
  • No. of Passes: 2
  • Dressing Frequency: Roughing: Once in 5 Teeth / Finishing: Once in 9 Teeth
  • Dressing: 0.05 mm
  • Depth: 0.05 mm

CUMI New Wheels RA 60 H 10 V736 / 45
  • Gear Module: Up to 12
  • No. of Teeth: 35
  • Depth of Cut / Flank ( R/F): 0.2/0.1 mm
  • No. of Passes: 2
  • Dressing Frequency: Roughing: Once in 5 Teeth / Finishing: Once in 9 Teeth
  • Dressing: 0.05 mm
  • Depth: 0.05 mm

CUMI New Wheels 3MSB 60 G12 V CA2/45
  • Gear Module: Up to 12 Modules
  • No. of Teeth: 35
  • Depth of Cut / Flank ( R/F): 0.25/0.1 mm
  • No. of Passes: 2
  • Dressing Frequency: Roughing: Once in 5 Teeth / Finishing: Once in 9 Teeth
  • Dressing: 0.05 mm
  • Depth: 0.05 mm

Product Recommendation:
  • For Modules Up to 10 (Conventional Machines Niles, Hoefler, Maag): RA46 H8 V736
  • For Modules Above 20 (Conventional Machines Niles, Hoefler, Maag): RA46 H10 V736
  • For Modules Up to 10 (CNC Machines Hoefler, Gleason Pfauter): RA46 H10 V736
  • For Modules Above 20 (CNC Machines Hoefler, Gleason Pfauter): 3MSB60 G12 VCA2/45
Multiple Gear Grinding Wheels:

For Conventional Machines: AZA, NZA, ZB etc.

Conventional Abrasives Range:
  • SA80 TDV 677G/45 - For 2.25 Modules to 4.0 Modules
  • SA60 TDV 677G/45 - For 4.25 Modules & above
  • SA100 TDV 677G/45 - For 1.75 to 2.25 Modules
  • RA280 TDV 547G/45 - For 1.0 Modules to 1.5 Modules
Conventional Premium Abrasives Range:
  • SA80 TDV 211 G/45 - For 2.25 Modules to 4.0 Modules
  • SA60 TDV 211 G/45 - For 4.25 Modules & above
  • SA100 TDV 211 G/45 - For 1.75 to 2.25 Modules
For CNC Machines: RZ362A, RZ 301S etc
  • 3MSB60 K8 TDV829G/45 - For 4.25 Modules and Above
  • 3MSB80 K8 TDV829G/45 - For 3.5 to 4.0 Modules
  • 3MSB 10 0 J8 TDV829G/45 - For 2.0 Modules to 3.75 Modules
  • 3MSB 120 J8 TDV829G/45 - for 1.25 to 1.75 Modules

For High Speed CCNC Machines: RZ150, RZ400 etc - 60 MPS Creep Feed Wheel

Features: 
  • The wheels are been developed with new specifications with imported grains and new bond systems, which is formulated in such a way that it will accommodate a wide range of module gears, with one grinding.
  • The new grading will reduce the dressing depth and dressing frequency, there by increasing the wheel life.
  • Due to reduction in dressing depth and dressing frequency, the dresser life will be increased.
The form retention will make the gear quality superior.