Vitrified CBN Internal Wheel for Bearing Races & Fuel Injector Bore Grinding

Name

Vitrified CBN Internal Wheel for Bearing Races & Fuel Injector Bore Grinding

Abrasive

CBN

Bond Type

Vitrified

Workpiece Material

Hardened Steel

Application

Internal cylindrical grinding of needle/ball bearing inner rings and outer races; High-precision bore finishing of diesel fuel injector nozzles, hydraulic valve sleeves, and gears.

Customization

✓ Custom Specification Available

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Description

Product Overview

Specially formulated for high-rpm internal diameter (ID) grinding of hardened steel bearings, hydraulic spools, and automotive fuel injection components. Its rigid vitrified matrix provides high dynamic stability at ultra-high rotational speeds, ensuring sub-micron roundness and low surface roughness.

Key Applications

✓

Bearing Ring Internal Grinding

Internal cylindrical grinding of needle/ball bearing inner rings and outer races.

✓

Fuel & Hydraulic Bore Finishing

High-precision bore finishing of diesel fuel injector nozzles, hydraulic valve sleeves, and gears.

Why Choose Us (Advantages):

Sub-Micron Bore Accuracy

Achieves strict roundness, cylindricity, and surface finish (Ra < 0.2 µm).

Extended Dressing Cycles

Resists wheel deflection and bore taper, reducing dressing frequency by up to 5x.

Low Grinding Resistance

High-rigidity bond design minimizes spindle deflection during deep bore passes.

Stable Quality and Bulk Supply

Standard models available in stock; Approx. 7 Working Days to Dispatch.

Common Specifications

COMMON Specs

Shapes

1A1W (Internal Pins), 1A1

Standard Diameters

5mm to 100mm (Mounted on steel or carbide shanks)

Concentration

100%, 125%, 150%

Grit Range

B46 – B126

Application Positioning

Suitable for precision internal grinding of bearing races, hydraulic valve sleeves, and diesel injector nozzles on high-precision internal grinders such as Studer and Voumard.

All sizes are customizable. Please share your drawings or specific dimensions with us for a precise quotation.

Machining Cases

Vitrified CBN Internal Wheel for Bearing Races & Fuel Injector Bore Grinding1.jpg