DIN 6888 Machine Keys | McMaster-Carr

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Specifications Met

System of Measurement

Width

Height

Length

For Keyway Diameter

Material

1018-1045 Carbon Steel

Key Type

Minimum Hardness

Hardness

REACH

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EAR99

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31 Products

Woodruff Keys


	Side View

Woodruff keys work well near shaft shoulders, where a standard open keyway would create too much stress. They are also often used on tapered shafts. These keys have a rounded shape that makes them easy to remove when parts need to be taken apart frequently, such as for maintenance or prototyping. Because they're usually shorter than standard machine keys, they work best in light duty applications. Use them to connect gears and other components to shafts. Also known as half moon keys.

1018-1045 Carbon Steel—Steel keys offer good strength.

316 Stainless Steel—316 stainless steel keys have excellent corrosion resistance, but aren't as strong as steel keys. They may be mildly magnetic.

Metric—Metric keys conform to DIN 6888 standards.

					Tolerance, mm
	Wd., mm	For Keyway Dia., mm	Ht., mm	Lg., mm	Wd.	Ht.	Specs. Met	System of Measurement	Pkg. Qty.		Pkg.
1018-1045 Carbon Steel



		1.5	7	2.6	6.8	-0.025 to 0.000	—	DIN 6888	Metric	25	98490A110	000000


		2	7	2.6	6.8	-0.025 to 0.000	—	DIN 6888	Metric	25	98490A120	00000
		2	10	3.7	9.7	-0.025 to 0.000	—	DIN 6888	Metric	25	98490A130	00000
		2	13	5	12.7	-0.025 to 0.000	—	DIN 6888	Metric	25	98490A140	00000
		2.5	10	3.7	9.7	-0.025 to 0.000	—	DIN 6888	Metric	25	98490A150	00000
		3	10	3.7	9.7	-0.025 to 0.000	—	DIN 6888	Metric	25	98490A160	00000
		3	13	5	12.7	-0.025 to 0.000	—	DIN 6888	Metric	25	98490A170	0000
		3	16	6.5	15.7	-0.025 to 0.000	—	DIN 6888	Metric	25	98490A180	00000
		4	13	5	12.7	-0.030 to 0.000	—	DIN 6888	Metric	25	98490A190	00000
		4	16	6.5	15.7	-0.030 to 0.000	—	DIN 6888	Metric	25	98490A200	00000
		4	19	7.5	18.6	-0.030 to 0.000	—	DIN 6888	Metric	25	98490A210	00000


		5	16	6.5	15.7	-0.030 to 0.000	—	DIN 6888	Metric	25	98490A220	00000
		5	19	7.5	18.6	-0.030 to 0.000	—	DIN 6888	Metric	25	98490A230	00000
		5	22	9	21.6	-0.030 to 0.000	—	DIN 6888	Metric	25	98490A240	00000
		5	25	10	24.5	-0.030 to 0.000	—	DIN 6888	Metric	10	98490A250	00000
		6	19	7.5	18.6	-0.030 to 0.000	—	DIN 6888	Metric	10	98490A255	00000
		6	22	9	21.6	-0.030 to 0.000	—	DIN 6888	Metric	10	98490A260	0000
		6	25	10	24.5	-0.030 to 0.000	—	DIN 6888	Metric	10	98490A270	00000
		6	28	11	27.35	-0.030 to 0.000	—	DIN 6888	Metric	10	98490A280	00000
		8	22	9	21.6	-0.036 to 0.000	—	DIN 6888	Metric	10	98490A290	00000
		8	28	11	27.35	-0.036 to 0.000	—	DIN 6888	Metric	10	98490A300	00000


		8	32	13	31.4	-0.036 to 0.000	—	DIN 6888	Metric	10	98490A310	00000
		10	28	11	27.35	-0.030 to 0.000	—	DIN 6888	Metric	5	98490A315	00000
		10	32	13	31.4	-0.036 to 0.000	—	DIN 6888	Metric	5	98490A320	00000
		10	45	16	43.1	-0.036 to 0.000	—	DIN 6888	Metric	5	98490A330	00000


		316 Stainless Steel



				2	7	2.6	6.8	-0.025 to 0.000	-0.100 to 0.000	DIN 6888	Metric	1	97940A131	0000


				2	10	3.7	9.7	-0.025 to 0.000	-0.120 to 0.000	DIN 6888	Metric	1	97940A132	0000
				3	10	3.7	9.7	-0.025 to 0.000	-0.120 to 0.000	DIN 6888	Metric	1	97940A133	0000
				4	16	6.5	15.7	-0.030 to 0.000	-0.150 to 0.000	DIN 6888	Metric	1	97940A135	00000
				5	16	6.5	15.7	-0.030 to 0.000	-0.150 to 0.000	DIN 6888	Metric	1	97940A137	00000
				5	19	7.5	18.6	-0.030 to 0.000	-0.150 to 0.000	DIN 6888	Metric	1	97940A138	00000