What's the Trick to Centerless Grinding? | Tapered Roller Grinding EP. 2

By ORSKOREA 2 min read
What's the Trick to Centerless Grinding? | Tapered Roller Grinding EP. 2

2. What's the Trick to Centerless Grinding?
: It's reducing centerline changes.

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In previous post, we dealt with tapered roller grinding process.

But you know what?
There are various methods of centerless grinding, and important considerations to keep in mind during the grinding process.

In this follow-up post, we will learn about centerless grinding and the key points briefly.

Let's dive in right now!
When it comes to the development of bearing manufacturing, grinding process is crucial.ⓒ Pixabay, ScienceDirect, Misumi Mech Lab

What is Centerless Grinding?

ⓒ ORSKOREA 오알에스코리아

There are three types of centerless grinding : through-feed centerless grinding, end-feed centerless grinding, and in-feed centerless grinding.

For centerless grinding of the outer diameter (raceway) of tapered rollers, which are rotationally symmetrical components, it is common to apply through-feed centerless grinding in consideration of mass production and high productivity.

Why it is so important to use Centerless Grinding?

Importance of Minimizing Centerline Change

Centerline change during Centerless Grinding ⓒ ORSKOREA 오알에스코리아

Unlike centered grinding, the centerline of the workpiece is not fixed in centerless grinding. Therefore, when the tapered roller moves along the width of the grinding wheel by the grinding drum, the dimensional change of the tapered roller according to the grinding allowance of the workpiece continuously changes the centerline of the tapered roller.

As a result, various efforts are being made to ensure the accurate setup of the grinding gap, select the appropriate workpiece speed, and perform proper dressing, all while minimizing any shifts in the centerline when the workpiece moves along the width of the grinding wheel.

🗞️
Following up on our last session, we took a closer look at tapered roller grinding. We’ve learned about the core principles of centerless grinding and the importance of reducing centerline changes for precise results.

But this is just a piece of the puzzle in producing high-quality tapered roller bearings! There’s another crucial aspect that we haven’t covered yet.

Are you curious? Don’t miss our next post and explore what comes next!
Tapered Roller Bearing #3

Written by Dennis Lee
Senior R&D Advisor


Editted by Yoonseung Han
R&D Associate

ⓒ ORSKOREA

ORSKOREA is an ISO9001-ISO45001-certified company, and leading grinding machines and spindles manufacturer of Korea.

ORSKOREA's product range for grinding machines includes internal, external, centerless, surface horizontal double disc, surface vertical double disc, cylindrical grinding machines and super-finishing machines, turning machines, and special-purpose grinding machines.

For spindles, ORSKOREA manufactures high-frequency spindles, belt-driven spindles, built-in-motor spindles, and hydraulic spindles - all controllable at desired speeds.

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