Key terms
Abrasive wheels: key terms
Plain-English definitions of the words used in the course. In the lessons, tap any underlined term to read its definition without leaving the page.
13 terms, United Kingdom version
- Abrasive wheel
- A wheel, disc or point made of abrasive grains, used for grinding, cutting or finishing.
- Blotter
- A card washer between the flange and the wheel that spreads the clamping pressure.
- Flange
- The metal discs that clamp the wheel onto the spindle.
- Hand-arm vibration syndrome
- Damage to nerves and blood vessels in the hands from regular use of vibrating tools.
- Isolate
- Cut off the power to a machine: switch off and unplug, or remove the battery.
- Kickback
- When a jammed disc makes the tool jump back towards the user.
- Maximum operating speed
- The highest speed a wheel is designed to run at, marked in m/s and rpm.
- PUWER
- The Provision and Use of Work Equipment Regulations 1998, which cover the safe provision and use of equipment at work.
- Resinoid wheel
- A wheel with an organic resin bond, often reinforced with fibreglass, used on hand-held grinders.
- Ring test
- Tapping a suspended vitrified wheel lightly to listen for a clear ring (sound) or a dull thud (possible crack).
- Tongue guard
- The adjustable top part of a bench-grinder guard, set close to the wheel's edge.
- Vitrified wheel
- A wheel with a ceramic bond, common on bench and pedestal grinders. It can be ring-tested.
- Work rest
- The support on a bench grinder that holds the workpiece. It must be set close to the wheel.
These terms come from the United Kingdom version of the course. See what the course covers.