Mitsuya Limited
600 Srinakarin Road, Suanluang Suanluang Bangkok 10250 Thailand.
Tel. (662) 322-3333 Fax. (662) 322-3400
E-mail :
Service@emitsuya.com
www.emitsuya.com
Skip Navigation Links
Home
Products Info. & MSDS
Applications
Staff section
Maximum usable peripheral speed of grinding wheel (JIS R 6241)

Class no. Grinding wheel class Max. usable peripheral speed m/min
Grinding wheel using inorganic bond Grinding wheel using organic bond
Vitrified grinding wheel Magnesia grinding wheel
Strength Low Middle High Low Middle High Low Middle High
1 Sh.1 Straight(General)
Sh.3 Single taper
Sh.5 Single concaved
Sh.7 Double concaved
Sh.10 Dovetail
Sh.12 Dished
Sh.13 Dished type for saw
Sh.20-26 Relieved
1700 1800 2000 1400 1600 1800 2000 2400 3000
2 Sh.2 Ring (include wheels with setting plate, with nuts and segment) 1500 1700 1800 1200 1400 1600 1500 1800 2100
3 Sh.6 Straight cup 1400 1500 1800 1200 1400 1600 1800 2300 2400
4 Disc (include wheels with setting plate, with nuts and segment) 1700 1800 2000 1700 1800 2000 1700 2100 2700
5 Sh.1 Straight(reinforced)
Outside dia.:same as or under 100mm.
Thickness:same as or under 25mm.
3000 3800 4800
Outside dia.:same as or under 205mm.
Thickness:same as or under 13mm.
3000 3800 4300
Other sizes 2000 2400 3000
Sh.27 Depressed centre(reinforced)
Those for rough grinding which correspond to JIS R 6213(resiniod depressed centre grinding wheel) 4300
Sh.27 Depressed centre(reinforced)
Sh.28 Depressed centre(reinforced)
Those which do not correspond to the above-mentioned items, such as depressed centre elastic grinding wheels
Outside dia.:same as or under 230mm.
Thickness:same as or under 10mm.
3000 3800 4300
Outside dia.:same as or under 235mm.
Thickness:over 10mm.
3000 3400
6 Sh1. Straight(for siper-heavy grinding) 3800
7 Grinding wheels for cutting off
reinforced 3000 3800 4800
unreinforced 2700 3400 3800
8 Grinding wheels for thread and slot grinding 2000 3000 3800 2000 3000 3800
9 Grinding wheels for crank and can shafts 1700 2400 2700 2000 2400 3000
10 Sh.1 Straight(wet)
Magnesia grinding wheel
Outside dia.:same as or over 455mm.
800 1000 1200