Precision Cylinderical, Surface, Internal, Tool, Gear grinding Ireland - Rutson R&T Distribution Abrasives Engineering Locks & Hardware

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Type	1	2	3

Application	Abrasive	Grain size	Grade	Structure	Bond
Unhardened steels	52A, A	54 - 60	K - L	8	V
Hardened steels <55 HRc 55 - 62 HRc 62 - 64 HRc	2A, 4A 4A, 6A 6A, 8A	60 - 80	J - L	8	V
Tool steel, high-alloyed	8A	60 - 80	J - K	8	V
Stainless steels	9C, C	54 - 60	J - L J - K	7 8	V
High-speed steels	58A, 4A	60 - 80	K - L	8	V
Chromium plated material finishing polishing	4A 2A 9C	60 - 80 100 - 120 500	J - K K I - J	7 - 8 9 12 - 16	V B B
Non-ferrous metals (soft bronze, aluminium, brass)	9C, C	36 - 60	J - K	5 - 7	V
Hard bronze	52A, 4A	46 - 60	K - L	7	V
Gray cast iron	9C, 52A	46 - 60	J - K	6 - 7	V
Plastics	9C, C	36 - 60	H - J	9 - 11	V
Carbide metals	C 8A Diamond	60 - 100	H - K	7 - 8	V
Porcelain	9C	60 - 80	J	7	V
Stainless steel	2A, 52A	46 - 60	K - L	6 - 8	V

Table of dimensions of grinding wheels for cylindrical grinding

D (mm)	T (mm)	H (mm)
75	6 - 100	10 20 32
80	6 - 100	13 16 20 32
100	6 - 100	10 13 16 20 32
115	6 - 100	25,4 32
125	6 - 100	13 16 20 25 30 32 40 50,8 76,2
150	6 - 100	13 16 20 25 30 32 40 50,8 76,2
175	6 - 100	13 16 20 25 32 40 50,8
180	6 - 125	13 16 20 25 32 40 50,8
200	6 - 125	16 20 25 32 40 50,8 76,2
225	6 - 125	16 20 25 32 40 50,8 60
250	6 - 125	16 20 25 32 40 50,8 76,2 127
300	6 - 125	16 20 25 32 40 50,8 76,2 127 152,4 160
350	6 - 125	20 25 32 40 50,8 76,2 127 160 203,2
400	8 - 150	25 32 40 50,8 127 160 203,2
450	8 - 150	25 32 40 50,8 127 160 203,2 254 304,8
500	10 - 250	25 32 40 50,8 127 160 203,2 254 304,8
508	10 - 250	76
600	12 - 250	25 32 40 50,8 76,2 203,2 254 304,8
650	12 - 250	203,2 304,8
700	20 - 150	32 40 50,8 76,2 127 203,2 304,8
750	20 - 150	76,2 203,2 304,8
800	20 - 150	32 76,2 203,2 304,8
900	20 - 150	32 304,8
1000	25 - 100	76,2 304,8
1060	25 - 100	304,8
1250	25 - 100	304,8

Crankshaft grinding & Camshaft grinding

Type 1MG
Designation: 1MG D x T x H

Application	Abrasive	Grain size	Grade	Structure	Bond
Crankpin and main bearings grinding
Carburized and tempered steels
- automobiles	52A, 2A	46 - 60	L - N	5 - 7	V
- trucks and tractors	52A 2A	46 - 60	K - N J - K	6 - 7	V
Steel casting
- pregrinding	A	36 - 46	M - N	6 - 8	V
- final grinding	52A, 42A, 7A	54 - 60	K - M	6 - 8	V
Grinding of crankshaft journal	4A, 52A	54 - 60	L - M	6 - 7	V

Camshaft grinding - type 1MG

Application	Abrasive	Grain size	Grade	Structure	Bond
Carburized steels	52A, 42A 2A, 4A	54 - 60 70 - 80	J - M L - M	6 - 8 6 - 9	V
Steel casting
- rough grinding	A	36 - 46	L - M	6 - 8	V
- pregrinding	52A	54 - 60	K - M	6 - 7	V
- final grinding	42A, 7A, 2A	54 - 60	J - L	6 - 7	V

Range of dimensions of grinding wheels Type 1MG

D (mm)	T (mm)	H (mm)
500	16 20 32	127 203,2
660	19 20 25 32	127 203,2 304,8
750	20 25 32 40	203,2 304,8
800	16 20 40 63	203,2 304,8
813	20 25 32	203,2
900	20 25 32 40	304,8
914	20 25 32 38	304,8
1000	32 40 50	304,8
1016	32	304,8
1060	32	304,8
1140	32 40 50 51 70	304,8

Ordering example: 1MG 660x19x203,2 52A 60/3M7V35, 40m/s.

Crankshaft grinding	Camshaft grinding