64mm Springs | McMaster-Carr

With the Raymond color code, you'll always grab the die spring with the right load rating. The chrome-silicon steel is stronger than spring steel and handles repeated stress for longer periods of time. Rely on these springs for high-volume jobs, such as stamping and injection molding. A powder coating prevents rust in wet environments. The closed, ground ends create a flat surface that balances your load, even as it moves.

Metric

Deflection @ Maximum Load—The percentage represents how much a spring compresses from its original length.

				Wire, mm
	For Hole Dia., mm	For Shaft Dia., mm	Lg., mm	Thk.	Wd.	Compressed Lg. @ Max. Load, mm	Deflection @ Max. Load	Max. Load, lb.	Spring Rate, lbf/mm	Material	End Type	Specs. Met		Each
Green (Light Load)



		16	8	64	1.75	2.77	41.6	35%	53	2.4	Chrome Silicon Steel	Closed and Ground	ISO 10243	00000000	00000


		20	10	64	1.91	4.19	41.6	35%	100	4.4	Chrome Silicon Steel	Closed and Ground	ISO 10243	00000000	0000
		25	12.5	64	2.54	5.46	41.6	35%	175	7.9	Chrome Silicon Steel	Closed and Ground	ISO 10243	0000000	00000
		40	20	64	3.43	8.76	41.6	35%	365	16	Chrome Silicon Steel	Closed and Ground	ISO 10243	00000000	00000
		50	25	64	4.95	11.89	41.6	35%	785	35	Chrome Silicon Steel	Closed and Ground	ISO 10243	0000000	00000


		Blue (Medium Load)



				40	20	64	4.75	7.92	44.8	30%	600	31	Chrome Silicon Steel	Closed and Ground	ISO 10243	00000000	00000


				50	25	64	5.72	11.10	44.8	30%	900	46	Chrome Silicon Steel	Closed and Ground	ISO 10243	00000000	00000


				Red (Heavy Load)



						40	20	64	6.60	8.64	48	25%	965	60	Chrome Silicon Steel	Closed and Ground	ISO 10243	0000000	00000


						Yellow (Extra-Heavy Load)



								40	20	64	8.13	8.71	51.2	20%	1,400	110	Chrome Silicon Steel	Closed and Ground	ISO 10243	00000000	00000

Compression Springs

Squeeze these springs and they’ll push right back to their original length. When compressed, they apply steady pressure to keep components securely in place. Release the pressure and they snap back instantly, just like the tip of a ballpoint pen.

Spring Steel—Strong and resilient, but best suited for dry environments since moisture will cause these springs to rust.

Corrosion-Resistant 302 Stainless Steel—Won’t corrode from exposure to moisture and mild chemicals, including ammonia often found in cleaning solutions. These springs are easier to compress than steel, but can’t handle as high a load.

	OD, mm	ID, mm	Wire Dia., mm	Compressed Lg. @ Max. Load, mm	Max. Load, lb.	Spring Rate, lbf/mm	End Type	Specs. Met	Pkg. Qty.		Pkg.
Spring Steel



	64	11.25	8.75	1.25	32.5	14	0.45	Closed and Ground	DIN 2095, DIN 2098, DIN 17223	1	000000000	00000


	Corrosion-Resistant 302 Stainless Steel



			64	45	35	5	29.6	180	5.3	Closed and Ground	DIN 2095	1	00000000	00000

Precision Compression Springs

Count on these springs when accuracy and repeatability are a must. All are made to tight OD and spring-rate tolerances. They’re often used for metering, measuring, and positioning jobs that require steady pressure or exact movement.

Highly Corrosion-Resistant 316 Stainless Steel—Our most corrosion-resistant stainless steel springs won't degrade when exposed to salt water and harsh chemicals. They're easier to compress than steel, but can’t handle as high a load.

	OD, mm	OD Tolerance, mm	ID, mm	Wire Dia., mm	Compressed Lg. @ Max. Load, mm	Max. Load, lb.	Spring Rate, lbf/mm	Spring Rate Tolerance, lbf/mm	End Type	Pkg. Qty.		Pkg.
Corrosion-Resistant 302 Stainless Steel



	64	11.25	-0.4 to 0.4	8.75	1.25	40.1	9.3	0.39	-0.04 to 0.04	Closed and Ground	1	0000000	00000


	Highly Corrosion-Resistant 316 Stainless Steel



			64	11.25	-0.4 to 0.4	8.75	1.25	44	7.8	0.39	-0.04 to 0.04	Closed and Ground	1	0000000	0000