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Thread Grinding Wheels - Taper Roller Bearing Ring
Thread Grinding Wheels - Taper Roller Bearing Ring

Thread Grinding Wheels – Taper Roller Bearing Ring

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CUMI Thread Grinding Wheel for Bearing Applications

Being a high speed, high material removal application with stringent demands on the thread profile, generating threads on taps and drills by grinding isn’t an easy job. CUMi‘s Thread grinding wheels are formulated with high purity, Sharp Aluminium Oxide grains combined with a special glassy, fusible bond. This ensures excellent form reten­ tion of the wheel, which translates into consistent thread profile of components.
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Brand: CUMI

Information Material:

Product Catalogue
Thread (pitch, mm) Good Better Best
0.4 – 0.7 AA400 K9 VF920/80 - -
0.8 – 1.0 AA320 K9 VF920/80 55A320 K9 VF920/80 -
1.25 – 1.5 AA280 L10 V457/80 - -
1.75 – 2.0 AA240 L9 V457/80 55A220 J9 V457/80 -
2.25 AA220 M9 V457/80 55A220 K9 V457/80 1CUMISA220 K9 V457/80
2.50 – 3.00 AA180 M9 V457/80 55A180 K9 V457/80 1CUMISA180 L9 V457/80
3.25 – 4.00 AA150 M9 V457/80 55A150 L8 V457/80 1CUMISA150 L9 V457/80
Thread (pitch, MM) TPI Grading
0.7 36 GC400 I5 VMG
0.8 32
1 25 GC320 I5 VMG
1.25 50
1.5 17 GC280 I5 VMG
1.75 15
2 13 GC220 I5 VMG
2.5 10
3.5 7
4 6
CUMI Code Grit Range Diameter Thickness Speed Hardness Structure
(mm) (inch) (mm) (inch) (mps)
55A 120 - 220 200 - 510 8 -20 6 - 40 1/4 to 11/2 upto 80 I - M 4 - 10
AA 120 - 400
RA Upto 150

Product Information

Features
- Hard, sharp & friable Aluminium Oxide abrasive blend
- Fusible, glassy crystalline bond
- Special manufacturing process
Benefits
- Improved form holding
- Hi performance
- Excellent form holding leading to reduced dressing
Advantage
- Minimal thermal load/ No burns on the taps
- Low grinding forces
- Lower cycle time
- Higher wheel life

Product Uses

Industries
Cutting Tool
Product Description

CUMI Thread Grinding Wheel

The CUMI Thread Grinding Wheel is engineered for high-speed, precise thread profile grinding on taps, drills, taper roller bearing rings, spherical bearings, and needle roller components. Built for the Bearing industry’s demanding tolerances, it ensures uniform thread geometry, long wheel life, and reduced rejections in manufacturing.

Feature → Advantage → Benefit 

  • High-purity sharp Aluminium Oxide grains → enable fast cutting speed → reduced cycle time per component
  • Glassy fusible vitrified bond → delivers excellent form retention → ensures consistent thread shape across production batches
  • Designed for high-speed material removal → withstands thermal & mechanical stress → extends wheel life
  • Optimized hardness/density structure → maintains low wear rate → lowers wheel change & dressing frequency
  • Thread-profile accuracy formulation → guarantees high dimensional precision → minimizes rejection % in QC

Industry Reference

Used in bearing manufacturing units, tool grinding factories, automotive part suppliers, and CNC thread-tool builders.

 

FAQs
01.
What is a thread grinding wheel used for in bearing manufacturing? A thread grinding wheel is used to generate accurate and consistent threads on bearing components such as taper roller bearing rings, taps, and drills.
02.
Why is thread grinding preferred for precision bearing components? Thread grinding ensures tight tolerances and uniform thread profiles, which are critical for bearing performance and reliability.
03.
What abrasive grain is used in this thread grinding wheel? This thread grinding wheel is formulated with high-purity, sharp aluminium oxide grains for efficient cutting and profile accuracy.
04.
How does this thread grinding wheel maintain thread form accuracy? The special glassy, fusible bond provides excellent form retention, allowing the thread grinding wheel to maintain a consistent thread profile over multiple cycles.
05.
Is this thread grinding wheel suitable for high-speed grinding applications? Yes, the thread grinding wheel is designed for high-speed, high material removal applications commonly required in the bearing industry.

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CUMI, a part of the 124-year-old Murugappa Group, began as an abrasives company in 1954.

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Phone Number

1800 3000 1131

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