Centerless Grinding - Bearing Roller

Centerless Grinding – Bearing Roller

Good

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.

Information Material:

Product Catalogue

Type	Operation	Speed	Best	Better	Good
Outer Diameter - Taper Roller	Rough	35	65A801 L RT1	A80 L RT3	A80 L RT1
		50	65A801 L RT45	A80 L RT45	-
		35	-	A80 MRT3	-
		50	For >1.5” roller	55BA60 K5 V50	-
	Finish	35	65A100 M RT1	A120 M RT1	A100 M RT1; A120 L RT1
		35	65A120 L RT1	A120 M RT1	A100 M RT1; A120 L RT1
		50	For > 1.5" roller	5SA80 K5 V50 DA80 J5 V2020/50	-
	Fine Finish	35	DA400 H7 RBCX	-	-
	Fine Finish	50	DA500 H7 RBCX	-	-
Outer Diameter - Cylindrical Rollers	Rough	35	1CUMISA60 J6 VCAE	53A60 J7 VC500	AA60 K5 V8
	Rough	50	1CUMISA60 J6 VC500/50	53A60 J7 VC500/50	AA60 K5 V50
	Finish	35	1CUMISA80 J6 VCAE	53A80 J7 VC500	AA80 K5 V8
	Finish	50	1CUMISA80 J6 VC500/50	53A80 J7 VC500/50	AA80 K5 V50
Needle Roller	Rough	35	GC120 M5 VG	-	-
	Rough	50	GC120 M5 VG/50	-	-
	Finish	35	GC1201 N5 VS2110M/50	A120 M RT1	A120 L RT1

CUMI Code	Grit Range	Diameter		Thickness		Hardness	Structure	Speed
CUMI Code	Grit Range	(mm)	(Inch)	(mm)	(Inch)	Hardness	Structure	(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 Information

Features

- Unique set of combination wheels

- Unique grain combination

- Cork bond

- Wide range of bond system

Benefits

- Good surface roughness and higher productivity

- Superior surface roughness & luster

- customize individual grinding needs

Advantages

- High stock removal

- Lower dressing frequency

- Burn free component

- Better productivity

- Excellent surface finish

Product Uses

Industries

Bearing

Applications

Centreless