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Centerless Grinding - Shock Absorber

Centerless Grinding – Shock Absorber

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An application which presents the most daunting challenges to any abrasive manufac­turer. The range of requirements and priorities of this application varies from product to product which calls for an equally wide range of offerings to suit the same. Since in most of the Centerless applications, more than one wheel is mounted on the spindle, extremely tight tolerances need to be maintained in the geometry and densities of the wheels to ensure uniform wear patterns even if each wheel in the set is different. CUMI has the expertise, when it comes to Centerless applications thanks to the advanced manufacturing process, premium Abrasive grains and specially designed Vit­rified, Resin and Rubber bond systems to suit the application needs. Customized solu­tions are provided for every application and specific requirement. Be it through-feed, end-feed or in-feed, CUMI wheels ensure that components are finished to stringent quality requirements.
Type Operation Speed Good Better Best
Inner Tube / Fork Pipe Rough 35 A80 N7 B310 DA603 N7 B99 55A603 N7 B99

55A603 J7 B600
50 A80 N7 B310/50

A220 L RT1 		DA603 N7 B99/50 55A603 N7 B99/50

55A603 J7 B600/50
Semi Finish 35 A220 L RT1/50 DA220 L RT1 65A220 L RT1
50 - DA220 L RT1/50 65A220 L RT1/50
Finish 35 - - DA4002/A5005 H7

RBCZ/50
50
Piston Rod Rough 35 A60 K5 V10C A801 N7 B99 55A603 N7 B99

55A603 J7 B600
50 - DA603 N7 B99/50 55A603 N7 B99/50

55A603 J7 B600/50
Semi Finish 35 - A220 L RT1 65A220 L RT1
50 - A220 L RT1/50 65A220 L RT1/50

DA120/DA240/A400 H7

RBCZ/50
Finish 35 - - AA 400/A500 G5 RBCZ

DA400 H7 RBCZ/50

A500 H7 RBCZ/50
50
CUMI Code Grit Range Diameter Thickness Hardness Structure Speed
(mm) (Inch) (mm) (Inch) (mps)
CUMISA 46 - 120 350 - 610 14 - 24 100 - 250 4 - 10 I - N 6 & 8 35, 50 & 63
50A / 50MA 46 - 120 I - N 7 35 & 50
65A 80 - 220 L - 40
SA 46 - 120 I - N 5 - 7 35 & 50
9A 46 - 120 I - P 5 - 7 35 & 50
SBA 46 - 120 I - P 5 - 7 35 & 50
AA 46 - 120 I - P 5 - 7 35 & 50
DA 46 - 120 100 - 300 4 - 12 I - P 5 - 7 35 & 50
A 46 - 120 I - P 5 - 7 35 & 50
C 46 - 120 I - N 5 - 7 35 & 50
GC 46 - 120 I - N 5 - 7 35 & 50

Product Uses

Industries
Auto/Auto Ancillary

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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

Email Address

email@cumi.murugappa.com

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