Norton Grinding Wheels | McMaster-Carr

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93 Products

Norton General Purpose Toolroom Grinding Wheels for Metals

Use these wheels for precision grinding on surface, cylindrical, and tool and cutter grinders. They are also known as Type 1 wheels and straight wheels.

Truing and cleaning before first use is recommended.

Norton 38A Abrasive—38A white wheels are for light material removal. They stay cool during use, so they're a good choice for heat-sensitive applications. They are aluminum oxide, which is the most common abrasive used in grinding metal.

Norton 32A Abrasive—32A purple wheels are for medium to heavy material removal. They are aluminum oxide.

							Wheel
	Dia.	Thk.	Arbor Hole Size	Max. Rotation Speed, rpm	Abrasive Material	Abrasive Bond Material	Designation	Shape	Choose a Grit (Surface Texture)	Choose a Norton Abrasive Grade		Each
38A White—VBE Bond







				For Steel and Stainless Steel

				7"	1/4"	1 1/4"	3,600	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough) , 80 (Smooth) , 100 (Smooth) , 120 (Smooth)	I , J , K	0000000	000000


				7"	1/2"	1 1/4"	3,600	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough) , 80 (Smooth) , 100 (Smooth)	H , I , J , K	0000000	00000
				8"	1/4"	1 1/4"	3,600	Aluminum Oxide	Vitrified Clay	Type 1	Straight	60 (Rough) , 80 (Smooth) , 100 (Smooth)	I , K	0000000	00000
				8"	1/2"	1 1/4"	3,105	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough)	H , I	00000000	00000
				8"	1/2"	1 1/4"	3,600	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough) , 80 (Smooth)	I , J , K	00000000	00000
				8"	3/4"	1 1/4"	3,600	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough)	I , K	0000000	00000
				12"	1"	5"	2,070	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough)	I	00000000	000000




						For Steel, Stainless Steel, and Iron

						6"	1/2"	1 1/4"	4,140	Aluminum Oxide	Vitrified Clay	Type 1	Straight	60 (Rough) , 80 (Smooth)	K	0000000	00000


						10"	3/4"	3"	2,485	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough)	J	0000000	000000
						12"	1"	3"	2,070	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough)	H , J	0000000	000000




								For Steel, Stainless Steel, Iron, and Nickel

								3"	1"	1/2"	10,825	Aluminum Oxide	Vitrified Clay	Type 1	Straight	60 (Rough) , 80 (Smooth)	M	0000000	00000


								7"	1/4"	1 1/4"	3,600	Aluminum Oxide	Vitrified Clay	Type 1	Straight	150 (Smooth)	K , L	0000000	00000


								32A Purple—VBE Bond







												For Steel and Stainless Steel

												7"	1/4"	1 1/4"	3,600	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough) , 80 (Smooth) , 100 (Smooth) , 120 (Smooth)	H , I , J , K	000000000	00000


												7"	1/2"	1 1/4"	3,600	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough) , 80 (Smooth) , 100 (Smooth) , 120 (Smooth)	H , I , J , K , L	000000000	00000
												7"	1"	1 1/4"	3,600	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough)	H , I	000000000	00000
												8"	1/4"	1 1/4"	3,600	Aluminum Oxide	Vitrified Clay	Type 1	Straight	60 (Rough) , 80 (Smooth) , 100 (Smooth)	I , K	000000000	00000
												8"	1/2"	1 1/4"	3,105	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough)	H , I	000000000	00000
												8"	1/2"	1 1/4"	3,600	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough) , 80 (Smooth)	H , I , J , K	000000000	00000
												8"	3/4"	1 1/4"	3,105	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough)	H , I	000000000	00000
												8"	1"	1 1/4"	3,600	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough)	I , K	000000000	000000
												10"	3/4"	3"	2,485	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough)	I	000000000	000000
												10"	1"	3"	2,485	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough)	H , I , K	000000000	000000
												12"	3/4"	3"	2,070	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough)	I	000000000	000000


12"	1"											3"	2,070	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough)	H , I	000000000	000000
12"	1 1/2"											3"	2,070	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough)	I	000000000	000000
14"	1"											5"	1,800	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough) , 80 (Smooth)	I , K	000000000	000000
14"	1 1/2"	5"										1,800	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough)	H , I , J , K	000000000	000000
14"	2"	5"	1,800									Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough)	I , J , K	000000000	000000




		For Steel, Stainless Steel, and Iron

		6"	1/2"									1 1/4"	4,140	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough) , 80 (Smooth)	J , K	000000000	00000


		7"	3/8"									1 1/4"	3,600	Aluminum Oxide	Vitrified Clay	Type 1	Straight	60 (Rough) , 80 (Smooth)	I , K	000000000	00000
		7"	3/4"									1 1/4"	3,600	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough)	H , K	000000000	00000
		8"	3/4"									1 1/4"	3,600	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough)	J , K	000000000	00000
		12"	1"									5"	2,070	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough)	H , K	000000000	000000
		12"	1 1/2"									5"	2,070	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough)	H , J , K	000000000	000000
		12"	2"	1 1/4"								2,070	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough)	K	000000000	000000




				For Steel, Stainless Steel, Iron, and Nickel

				8"	1/4"							1 1/4"	3,105	Aluminum Oxide	Vitrified Clay	Type 1	Straight	46 (Rough)	H	000000000	00000

Norton Long-Life Toolroom Grinding Wheels for Metals

A more durable abrasive allows these wheels to remove more material and last longer than Norton General Purpose Grinding Wheels. They are also known as Type 1 wheels and straight wheels.

Truing and cleaning before first use is recommended.

Caution: Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.

Norton 32AA Abrasive—32AA purple wheels are for medium to heavy material removal. They are a blend of aluminum oxide and ceramic alumina, which lasts up to twice as long as Norton 32A General Purpose Grinding Wheels.

Norton 5SG Abrasive—5SG blue wheels are for heavy material removal. They are ceramic aluminum oxide, which lasts up to five times as long as Norton 32A General Purpose Grinding Wheels.

							Wheel
	Dia.	Thk.	Arbor Hole Size	Max. Rotation Speed, rpm	Abrasive Material	Abrasive Bond Material	Designation	Shape	Choose a Grit (Surface Texture)	Choose a Norton Abrasive Grade		Each
32AA Purple—VTR Bond







				For Steel, Stainless Steel, Iron, and Nickel

				6"	1/4"	1 1/4"	4,140	Aluminum Oxide/Ceramic Alumina Blend	Vitrified Clay	Type 1	Straight	80 (Smooth)	K	00000000	000000


				6"	1/2"	1 1/4"	4,140	Aluminum Oxide/Ceramic Alumina Blend	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough)	K	00000000	00000
				7"	1/4"	1 1/4"	3,600	Aluminum Oxide/Ceramic Alumina Blend	Vitrified Clay	Type 1	Straight	46 (Rough) , 80 (Smooth)	I , K	00000000	00000
				7"	1/2"	1 1/4"	3,600	Aluminum Oxide/Ceramic Alumina Blend	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough) , 80 (Smooth)	I , J , K	00000000	00000
				8"	1/4"	1 1/4"	3,600	Aluminum Oxide/Ceramic Alumina Blend	Vitrified Clay	Type 1	Straight	60 (Rough) , 80 (Smooth)	I , K	00000000	00000
				8"	1/2"	1 1/4"	3,105	Aluminum Oxide/Ceramic Alumina Blend	Vitrified Clay	Type 1	Straight	46 (Rough)	I	00000000	00000
				8"	1/2"	1 1/4"	3,600	Aluminum Oxide/Ceramic Alumina Blend	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough) , 80 (Smooth)	I , J , K	00000000	00000
				8"	3/4"	1 1/4"	3,600	Aluminum Oxide/Ceramic Alumina Blend	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough)	J	00000000	000000
				10"	1"	3"	2,485	Aluminum Oxide/Ceramic Alumina Blend	Vitrified Clay	Type 1	Straight	46 (Rough)	I	00000000	000000
				12"	1"	3"	2,070	Aluminum Oxide/Ceramic Alumina Blend	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough)	I	00000000	000000


				5SG Blue—VS Bond







								For Steel and Stainless Steel

								7"	1/4"	1 1/4"	3,600	Ceramic Alumina	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough) , 80 (Smooth) , 100 (Smooth)	I , J , K	0000000	00000


								7"	1/2"	1 1/4"	3,600	Ceramic Alumina	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough) , 80 (Smooth)	I , J , K , L	0000000	000000
								8"	1/2"	1 1/4"	3,105	Ceramic Alumina	Vitrified Clay	Type 1	Straight	46 (Rough)	I	00000000	000000
								8"	1/2"	1 1/4"	3,600	Ceramic Alumina	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough) , 80 (Smooth)	I , J , K	000000000	000000
								12"	3/4"	3"	2,070	Ceramic Alumina	Vitrified Clay	Type 1	Straight	60 (Rough)	I	00000000	000000
								12"	1"	3"	2,070	Ceramic Alumina	Vitrified Clay	Type 1	Straight	46 (Rough)	I , K	000000000	000000
								14"	1"	3"	1,800	Ceramic Alumina	Vitrified Clay	Type 1	Straight	46 (Rough)	I	00000000	000000
								14"	1 1/2"	5"	1,800	Ceramic Alumina	Vitrified Clay	Type 1	Straight	60 (Rough)	I	00000000	000000




										For Steel, Stainless Steel, and Iron

										7"	3/4"	1 1/4"	3,600	Ceramic Alumina	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough)	K	0000000	000000


										8"	3/4"	1 1/4"	3,600	Ceramic Alumina	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough)	J	00000000	000000
										10"	1"	3"	2,485	Ceramic Alumina	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough)	J , K	000000000	000000
										12"	1"	5"	2,070	Ceramic Alumina	Vitrified Clay	Type 1	Straight	46 (Rough)	J	00000000	000000
										14"	1"	5"	1,800	Ceramic Alumina	Vitrified Clay	Type 1	Straight	46 (Rough) , 60 (Rough)	J	000000000	000000

Norton Toolroom Grinding Wheels for Soft Metals


Cylindrical Grinding Wheel	Straight Grinding Wheel

Unlike aluminum oxide wheels, these silicon carbide wheels won't clog when grinding soft metals.

Caution: Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.

							Wheel
	Dia.	Thk.	Arbor Hole Size	Max. Rotation Speed, rpm	Abrasive Material	Abrasive Bond Material	Designation	Shape	Grit (Surface Texture)	Norton Abrasive Grade		Each
37C Black—VMT Bond







				For Aluminum, Brass, and Bronze

				3"	1/2"	1/2"	10,825	Silicon Carbide	Vitrified Clay	Type 1	Straight	60 (Rough)	M	0000000	000000


				39C Green—VK Bond







								For Aluminum, Brass, Bronze, Titanium, and Carbide

								6"	1"	1 1/4"	3,600	Silicon Carbide	Vitrified Clay	Type 2	Cylinder	60 (Rough)	I	0000000	000000


								6"	1"	1 1/4"	3,600	Silicon Carbide	Vitrified Clay	Type 2	Cylinder	120 (Smooth)	I	0000000	000000
								7"	1 1/2"	1 3/4"	3,600	Silicon Carbide	Vitrified Clay	Type 2	Cylinder	60 (Rough)	I	0000000	000000


								39C Green—VMT Bond







												For Aluminum, Brass, Bronze, Titanium, and Carbide

												6"	1"	1 1/4"	3,600	Silicon Carbide	Vitrified Clay	Type 2	Cylinder	80 (Smooth)	I	0000000	000000


												7"	1/2"	1 1/4"	3,600	Silicon Carbide	Vitrified Clay	Type 1	Straight	60 (Rough)	I	0000000	00000
												7"	1/2"	1 1/4"	3,600	Silicon Carbide	Vitrified Clay	Type 1	Straight	80 (Smooth)	I	0000000	00000
												7"	1/2"	1 1/4"	3,600	Silicon Carbide	Vitrified Clay	Type 1	Straight	100 (Smooth)	I	0000000	00000
												7"	1/2"	1 1/4"	3,600	Silicon Carbide	Vitrified Clay	Type 1	Straight	120 (Smooth)	I	0000000	00000
												7"	1"	1 1/4"	3,600	Silicon Carbide	Vitrified Clay	Type 1	Straight	60 (Rough)	I	0000000	000000
												8"	1/2"	1 1/4"	3,600	Silicon Carbide	Vitrified Clay	Type 1	Straight	100 (Smooth)	I	0000000	000000
												8"	3/4"	1 1/4"	3,600	Silicon Carbide	Vitrified Clay	Type 1	Straight	60 (Rough)	J	0000000	000000
												8"	1"	1 1/4"	3,600	Silicon Carbide	Vitrified Clay	Type 1	Straight	60 (Rough)	J	0000000	000000
												8"	1"	1 1/4"	3,600	Silicon Carbide	Vitrified Clay	Type 1	Straight	80 (Smooth)	I	0000000	000000
												8"	1"	1 1/4"	3,600	Silicon Carbide	Vitrified Clay	Type 1	Straight	100 (Smooth)	I	0000000	000000


												10"	2"	2"	2,100	Silicon Carbide	Vitrified Clay	Type 2	Cylinder	60 (Rough)	H	0000000	000000

Centerless Grinding Wheels

Remove material and shape metal cylindrical forms or parts without the need for centers or fixtures. These wheels have tight dimensional tolerances and create a smooth surface. They’re good for grinding numerous materials with just a few machines.

Caution: Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.

							Wheel
	Dia.	Thk.	Arbor Hole Size	Max. Rotation Speed, rpm	Abrasive Material	Abrasive Bond Material	Designation	Shape	Grit (Surface Texture)	Norton Abrasive Grade		Each
64A Light Gray—VCE Bond







				For Steel and Iron

				20"	6"	12"	1,620	Aluminum Oxide	Vitrified Clay	Type 1	Straight	60 (Rough)	K	0000000	000000000


				20"	8"	12"	1,620	Aluminum Oxide	Vitrified Clay	Type 1	Straight	60 (Rough)	K	0000000	00000000


				55A Beige—VS3 Bond







								For Steel, Stainless Steel, and Iron

								24"	8"	12"	1,350	Aluminum Oxide	Vitrified Clay	Type 1	Straight	60 (Rough)	K	0000000	00000000


								24"	10"	12"	1,350	Aluminum Oxide	Vitrified Clay	Type 1	Straight	60 (Rough)	K	0000000	00000000


								52A Dark Gray—VS3 Bond







												For Steel, Stainless Steel, Aluminum, and Iron

												24"	6"	12"	1,350	Aluminum Oxide	Vitrified Clay	Type 1	Straight	60 (Rough)	K	0000000	00000000

Grinding Wheel Segments for Surface Grinders

Grind flat stock and flat surfaces with these segments. You can use several together in your surface grinder's chuck so they move over your workpiece, or keep the segments stationary and move your workpiece.

Caution: Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.

	Abrasive Material	Abrasive Bond Material	Grinding Wheel Designation	Grit (Surface Texture)	Norton Abrasive Grade		Each
53A Gray







	For Brass, Bronze, Iron, and Tool Steel

	6"	5"	1 1/2"	Aluminum Oxide	Vitrified Clay	Type 31	30 (Rough)	E	0000000	000000


	6"	11 1/4"	2 1/4"	Aluminum Oxide	Vitrified Clay	Type 31	30 (Rough)	E	0000000	00000
	8"	11 1/4"	2 1/4"	Aluminum Oxide	Vitrified Clay	Type 31	30 (Rough)	E	0000000	00000
	8"	11 1/4"	3"	Aluminum Oxide	Vitrified Clay	Type 31	30 (Rough)	E	0000000	000000

Mounted Dressers for Toolroom Grinding Wheels

Dressers have a diamond abrasive, which is extremely hard and wear resistant. They mount onto surface, cylindrical, and tool and cutter grinding equipment. They are also known as cleaners.

Single Point


Round Shank with Round Head—For Use With Norton Machines	Round Shank with Round Head—For Use With Cincinnati Machines

A single point removes more material than dressers with multiple points.

Not Resettable—Nonresettable dressers have one point.

	Abrasive Material	For Grinding Wheel Shape	For Abrasive Bond Material	Shank Dia.		Each
Round Shank with Round Head—For Use With Norton Machines







	Not Resettable

	3" to 6"	1/3	1 1/8"	Diamond	Recessed, Straight, Straight Cup	Synthetic Resin, Vitrified Clay	7/16"	00000000	000000


	3" to 6"	1/3	2 1/8"	Diamond	Recessed, Straight, Straight Cup	Synthetic Resin, Vitrified Clay	7/16"	00000000	00000
	3" to 7"	1/2	1 1/8"	Diamond	Recessed, Straight, Straight Cup	Synthetic Resin, Vitrified Clay	7/16"	00000000	00000
	3" to 7"	1/2	2 1/8"	Diamond	Recessed, Straight, Straight Cup	Synthetic Resin, Vitrified Clay	7/16"	00000000	00000
	4" to 5"	1/4	1 1/8"	Diamond	Recessed, Straight, Straight Cup	Synthetic Resin, Vitrified Clay	7/16"	00000000	00000
	4" to 5"	1/4	2 1/8"	Diamond	Recessed, Straight, Straight Cup	Synthetic Resin, Vitrified Clay	7/16"	00000000	00000
	8" to 12"	3/4	1 1/8"	Diamond	Recessed, Straight, Straight Cup	Synthetic Resin, Vitrified Clay	7/16"	00000000	000000
	8" to 12"	3/4	2 1/8"	Diamond	Recessed, Straight, Straight Cup	Synthetic Resin, Vitrified Clay	7/16"	00000000	000000


	Round Shank with Round Head—For Use With Cincinnati Machines







					Not Resettable

					4" to 5"	1/4	2 5/8"	Diamond	Recessed, Straight, Straight Cup	Synthetic Resin, Vitrified Clay	7/16"	00000000	00000