Torsion Springs

Torsion springs are a type of wire spring. They are springs that receive a twisting moment around the coil. The shape of torsion spring ends is determined by the mounting location and method, enabling selection of 90-, 135- or 180-degree arm angles. Unlike compression springs and tension springs, torsion springs can reduce the design space and labor. Torsion springs can be classified primarily into close-wound and pitch-wound types. When selecting a torsion spring, it's important to carefully check the free length, average coil diameter and spring constant to select the right model for the usage environment or application. But when selecting models, note that different manufacturers define free length differently.

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Recommendation
Torsion Springs - 304 Stainless Steel, Left/Right Combinations

Samini

324 types for both right- and left-handed windings. Torsion springs with an internal diameter of 3 to 18.
[Features]
· The same internal diameter can be selected with multiple wire diameters, so different strengths can be confirmed.
· Springs that use torsional moment (torque) around the coil axis.
[Applications]
· Lids for household mailboxes, etc.
· Can also be used for clips, etc.

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Double Torsion Springs - Stainless Steel, High Torque

Samini

· Consists of two torsion springs combined.
· Produces double the torque at the same twist angle when compared with conventional torsion coil springs.

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Stock Items Included
Torsion Springs

MISUMI

Arm angle 90, 135 and 180 degree with right and left winding available.

Clean processed version also available, please click Here.

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Rapid Design

CAD Available in 2D and 3D
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New Products
[Clean & Pack] Torsion Springs

MISUMI

Arm angle 90, 135 and 180 degree with right and left winding available.

Volume Discount is available

Degreasing

CAD Available in 2D and 3D
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Torsion Springs - 304 Stainless Steel (SUS304WP-B), Various Turn Counts【1-10 Pieces Per Package】

Showa

We have standardized this torsion coil spring to help customers with spring design or calculation issues.

[Features]
- Made of stainless steel wire (φ 0.3 mm to φ 2.0 mm in diameter) with cold-molding for general use.
- JISG4313 (stainless steel wire for spring) type B, SUS304WP-B.
- * Features corrosion and heat resistance (to about 250 °C).
- 350 °C to 400 °C low temperature annealing (no surface treatment).

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Torsion Springs - 304 Stainless Steel, Left and Right Wound Pair, 90 Degree, 5 mm I.D., 0.6 mm Wire Dia., 3 Coils, EA952SH-516

ESCO

Product Specifications
·Material-SUS304
·Right-handed spring/left-handed spring (1 pc each)
·RoHS-compliant
·ID.-5 mm
·Angle shape-90°
·Wire dia. (mm)-0.6
·Number of rolls-3

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Torsion Springs - 304 Stainless Steel, Left and Right Wound Pair, 90 Degree, 3 mm I.D., 0.4 mm Wire Dia., 3 Coils, EA952SH-316

ESCO

Product Specifications
·Material-SUS304
·Right-handed spring/left-handed spring (1 pc each)
·RoHS-compliant
·ID.-3 mm
·Angle shape-90°
·Wire dia. (mm)-0.4
·Number of rolls-3

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Torsion Springs - 304 Stainless Steel, Left and Right Wound Pair, 135 Degree, 8 mm I.D., 0.9 mm Wire Dia., 5 Coils, EA952SH-823

ESCO

Product Specifications
·Material-SUS304
·Right-handed spring/left-handed spring (1 pc each)
·RoHS-compliant
·ID.-8 mm
·Angle shape-135°
·Wire dia. (mm)-0.9
·Number of rolls-5

Volume Discount is available
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Ships as soon as 5 Days


Brand
Product Series
CAD
Days to Ship
Specifications
Free Angle θ
Material
Inner Diameter ID
Twisting Angle Фd2(deg)
Wire Diameter d(Ø)
Number of Winding n
Spring Constant k(N⋅mm/deg)
Cleaning Method

	Recommendation		Lead Time Reduction	New Products Degreasing
Brand	Samini	Samini	MISUMI	MISUMI	Showa	ESCO	ESCO	ESCO
Product Series	Torsion Springs - 304 Stainless Steel, Left/Right Combinations	Double Torsion Springs - Stainless Steel, High Torque	Torsion Springs	[Clean & Pack] Torsion Springs	Torsion Springs - 304 Stainless Steel (SUS304WP-B), Various Turn Counts【1-10 Pieces Per Package】	Torsion Springs - 304 Stainless Steel, Left and Right Wound Pair, 90 Degree, 5 mm I.D., 0.6 mm Wire Dia., 3 Coils, EA952SH-516	Torsion Springs - 304 Stainless Steel, Left and Right Wound Pair, 90 Degree, 3 mm I.D., 0.4 mm Wire Dia., 3 Coils, EA952SH-316	Torsion Springs - 304 Stainless Steel, Left and Right Wound Pair, 135 Degree, 8 mm I.D., 0.9 mm Wire Dia., 5 Coils, EA952SH-823
CAD	3D		2D / 3D	2D / 3D
Days to Ship	4 Days	Same Day Stock Items Included	4 Days	5 Days	5 Days	5 Days	5 Days	5 Days
Specifications			Rapid Design
Free Angle θ	90° Right Winding Coil / 135° Right Winding Coil / 180° Right Winding Coil / 90° Left Winding Coil / 135° Left Winding Coil / 180° Left Winding Coil	90° Right Winding Coil / 135° Right Winding Coil	90° Right Winding Coil / 135° Right Winding Coil / 180° Right Winding Coil / 90° Left Winding Coil / 135° Left Winding Coil / 180° Left Winding Coil	90° Right Winding Coil / 135° Right Winding Coil / 180° Right Winding Coil / 90° Left Winding Coil / 135° Left Winding Coil / 180° Left Winding Coil	90° Right Winding Coil / 135° Right Winding Coil / 180° Right Winding Coil	-	-	-
Material	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel	-	-	-
Inner Diameter ID	Ø3 ～ Ø18	Ø5 ～ Ø14	Ø2 ～ Ø6	Ø2 ～ Ø6	Ø3 ～ Ø14	-	-	-
Twisting Angle Фd2(deg)	26 ～ 144	31 ～ 79	23 ～ 75	23 ～ 75(0.6) 54(0.8)	27 ～ 116	-	-	-
Wire Diameter d(Ø)	0.3 ～ 2.9	0.6 ～ 2.3	0.2 ～ 1	0.2 ～ 1	0.3 ～ 2	-	-	-
Number of Winding n	2 / 3 / 5	2 / 3 / 4 / 5	2 / 3 / 4 / 5	2 / 3 / 4 / 5	2 / 3 / 4 / 5	-	-	-
Spring Constant k(N⋅mm/deg)	0.024 ～ 85.8	0.57 ～ 53.6	0.0088 ～ 1.476	0.0088 ～ 1.476	-	-	-	-
Cleaning Method	-	-	-	Degreasing / Precision Cleaning / Electrolytic Polishing + Precision Cleaning	-	-	-	-

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Torsion Springs

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Free Angle θ

Material

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Metric / Inch

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Number of Winding n

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Cleaning Method

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