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Torsion Springs, Arm Angle (90°/135°/180°) (C-UA90R3-4-0.4)

Volume Discount

Check FAQ of this product (6 items)

MISUMI

MiSUMi Economy

MISUMI

· Economy Torsion Springs Series -Arm angles of 90°/135°/180°.
· The series includes C-UA90R, C-UA90L, C-UA135R, C-UA135L, C-UA180R and C-UA180R.
· Material: Stainless Steel (SUS304-WPB)
· Arm Angle: 90°/135°/180°.
· Type of Arm Angle: Right Winding and Left Winding
· Inner Diameter: 2, 3, 4, 5 and 6
· Number of coil n: 3, 4 and 5.
· Torsion springs are used in various applications such as automotive, aerospace, industrial machinery, and electrical devices.
· Torsion springs are designed to generate torque or rotational force when twisted or subjected to angular deflection.

Part Number

Configured Part Number is shown.

C-UA90R3-4-0.4

Drawing
3D Preview
Part Numbers
Specifications

Economy Torsion Spring

Energy StorageVersatilityDurability

- Material: Stainless steel (SUS304-WPB) for corrosion resistance and durability.

- Design: Multiple arm angle options to suit various applications.

- Customization: Options for right and left-hand winding, as well as arm length and bending alterations.

- Spring with customizable dimensions

- Torque Generation: Produces rotational force when twisted.

MISUMI Standard

Cheaper Price

Product Variety

3D CAD
3D CAD Support

Torsion Springs Product Overview

♢ This series is MISUMI economy series Torsion Springs. It is manufactured in China, so its price is reduced significantly, up to 93% less than other similar MISUMI products.
♢ The torsion spring is a type of coil springs. The end of the torsion spring is fixed to other components. When other components rotate around the spring center, the spring will pull them back to the initial position to generate torque or rotation force.
It is used to control the movement of machine parts, alleviate impact or vibration, store energy, measure force, etc. It is widely used in computers, electronics, home appliances, cameras, instruments, doors, motorcycles, harvesters, automobiles and other industries.
The end of the spring can be wound into a hook-shaped or straight torsion arm.

Torsion Springs Product Features

♢ Torsion Springs It has complete specifications to satisfy requirements on various dimensions, torques and angles.
♢ Standard products right-hand wound are in stock and can be shipped next day after the order is placed, while the products left-hand wound can be shipped within 5 days after the order is placed.
♢ Alteration can be made to the length and bending in a short delivery time and small batches (shipping within 5 days for alteration to the length and 6 days for the alteration to the bending).
♢ The strength and service life can be guaranteed by using imported wire materials.
♢ The Torsion Springs is used to control the movement of machine parts, alleviate impact or vibration, store energy, measure force, etc. It is widely used in computers, electronics, home appliances, cameras, instruments, doors, motorcycles, harvesters, automobiles and other industries.

Torsion Springs Dimensional Drawing

Material SUS304-WPB (Imported from Japan)

Torsion Springs Specifications Overview

Part Number		Number of Coils n	Wire Diameter d	Alteration Type	Arm Length L·R	Spring Constant (Torque) N··mm/deg			Maximum Usage Angle deg (°)
Type	Inner diameter D	Number of Coils n	Wire Diameter d	Alteration Type	Arm Length L·R	Arm Angle 90°	Arm Angle 135°	Arm Angle 180°	Arm Angle 90°	Arm Angle 135°	Arm Angle 180°
Arm angle 90° (right-hand wound) (left-hand wound) Arm angle 135° (right-hand wound) (left-hand wound) Arm angle 180° (right-hand wound) (left-hand wound) (The spring constant is the reference value when the arm length is cut into L/2 and R/2.) 1N＝0.101972kgf 1deg＝1° (Angle)	2	5	0.3	A (single arm length specified) B (single arm bent) C (double arms length specified) D (single arm length specified＋single arm bent) E (double arms bent) F (double arm length specified＋single arm bent) G (single arm length specified＋double arms bent) H (double arms length specified＋double arms bent) * Select N/A here on the web page if no alteration is required.	20	0.0289	0.0295	0.0302	61	60	58
	2	5	0.4		20	0.0882	0.09	0.092	46	45	43
	3	3	0.3		30	0.0295	0.0304	0.0314	56	54	52
		3	0.4			0.0912	0.094	0.097	42	40	39
		4	0.4			0.0736	0.0755	0.0774	55	53	51
		4	0.5			0.1756	0.1799	0.1845	44	42	41
		5	0.4			0.0617	0.063	0.0643	71	68	66
		5	0.5			0.1471	0.1501	0.1533	54	53	51
	4	3	0.4		40	0.07	0.0722	0.0744	56	54	52
		3	0.5			0.168	0.1732	0.1787	42	41	40
		4	0.5			0.1357	0.139	0.1425	57	54	52
		4	0.6			0.2763	0.2831	0.2903	48	47	45
		5	0.5			0.1138	0.1161	0.1185	69	67	65
		5	0.6			0.2315	0.2363	0.2413	60	59	58
	5	3	0.5		50	0.1368	0.1409	0.1454	55	52	51
		3	0.6			0.2797	0.2883	0.2974	47	44	42
		4	0.6			0.2259	0.2314	0.2373	60	58	56
		4	0.8			0.6936	0.7108	0.7289	42	41	40
		5	0.6			0.1894	0.1933	0.1974	75	73	71
		5	0.8			0.5811	0.5931	0.6056	54	53	52
	6	3	0.6		60	0.2363	0.2436	0.2512	56	52	50
		3	0.8			0.7299	0.7523	0.7762	38	36	35
		4	0.8			0.5891	0.6037	0.619	50	48	47
		4	1			1.4045	1.4394	1.476	42	40	39
		5	0.8			0.4939	0.5041	0.5147	63	61	60
		5	1			1.1765	1.2008	1.2262	51	50	49

Torsion Springs Alteration

Torsion Springs Precautions

1. The Torsion Springs is prone to breakage if the pressure change exceeds the maximum value. The spring will break under high stress as the load curve rises due to the increase of the spring constant.
2. In applications without pre-twisting, the spring may be twisted due to vertical vibration caused by the gap. With pre-twisting, the spring works stably.
3. In applications where the spring is placed transversely, it may cause abrasion and breakage of the guide pin and spring.

Torsion Springs Example of Use

Torsion Springs Used for rebound positioning control
Usage Method 1

Torsion Springs Used for fixtures
Usage Method 2

Part Number

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Part Number
C-UA90R3-4-0.4

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	Arm Angle	Inner Dia. D	Wire Dia. d (Ø)	Number of Winding	Addtional Machining	Arm length cutting (Left) [LC] (mm)	Right Arm Bending (Specify bending direction) [RBC] (°)	Left arm bending (Specify bending position)[LZ] (mm)	Right Arm Bending (Specify bending direction) [RZ] (mm)	Arm length cutting (Right) [RC] (mm)	Left Arm Bending (Specify bending direction) [LBC]
	MYR 0.74	100 Piece(s)	Available	5 Day(s)	Arm Angle 90° (Right Winding)	3	0.4	4	None	-	-	-	-	-	-

Dimensional Drawing

Material SUS304-WPB (Imported from Japan)

Specification Table

Part Number		Number of Coils n	Wire Diameter d	Alteration Type	Arm Length L·R	Spring Constant (Torque) N··mm/deg			Maximum Usage Angle deg (°)
Type	Inner diameter D	Number of Coils n	Wire Diameter d	Alteration Type	Arm Length L·R	Arm Angle 90°	Arm Angle 135°	Arm Angle 180°	Arm Angle 90°	Arm Angle 135°	Arm Angle 180°
Arm angle 90° (right-hand wound) (left-hand wound) Arm angle 135° (right-hand wound) (left-hand wound) Arm angle 180° (right-hand wound) (left-hand wound) (The spring constant is the reference value when the arm length is cut into L/2 and R/2.) 1N＝0.101972kgf 1deg＝1° (Angle)	2	5	0.3	A (single arm length specified) B (single arm bent) C (double arms length specified) D (single arm length specified＋single arm bent) E (double arms bent) F (double arm length specified＋single arm bent) G (single arm length specified＋double arms bent) H (double arms length specified＋double arms bent) * Select N/A here on the web page if no alteration is required.	20	0.0289	0.0295	0.0302	61	60	58
	2	5	0.4		20	0.0882	0.09	0.092	46	45	43
	3	3	0.3		30	0.0295	0.0304	0.0314	56	54	52
		3	0.4			0.0912	0.094	0.097	42	40	39
		4	0.4			0.0736	0.0755	0.0774	55	53	51
		4	0.5			0.1756	0.1799	0.1845	44	42	41
		5	0.4			0.0617	0.063	0.0643	71	68	66
		5	0.5			0.1471	0.1501	0.1533	54	53	51
	4	3	0.4		40	0.07	0.0722	0.0744	56	54	52
		3	0.5			0.168	0.1732	0.1787	42	41	40
		4	0.5			0.1357	0.139	0.1425	57	54	52
		4	0.6			0.2763	0.2831	0.2903	48	47	45
		5	0.5			0.1138	0.1161	0.1185	69	67	65
		5	0.6			0.2315	0.2363	0.2413	60	59	58
	5	3	0.5		50	0.1368	0.1409	0.1454	55	52	51
		3	0.6			0.2797	0.2883	0.2974	47	44	42
		4	0.6			0.2259	0.2314	0.2373	60	58	56
		4	0.8			0.6936	0.7108	0.7289	42	41	40
		5	0.6			0.1894	0.1933	0.1974	75	73	71
		5	0.8			0.5811	0.5931	0.6056	54	53	52
	6	3	0.6		60	0.2363	0.2436	0.2512	56	52	50
		3	0.8			0.7299	0.7523	0.7762	38	36	35
		4	0.8			0.5891	0.6037	0.619	50	48	47
		4	1			1.4045	1.4394	1.476	42	40	39
		5	0.8			0.4939	0.5041	0.5147	63	61	60
		5	1			1.1765	1.2008	1.2262	51	50	49

Alteration

Basic Information

Material	SUS304-WPB

Please check the type/dimensions/specifications of the part C-UA90R3-4-0.4 in the Torsion Springs, Arm Angle (90°/135°/180°) series.

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Specification/Dimensions

Arm length cutting (Left) [LC](mm)
Clear
Right Arm Bending (Specify bending direction) [RBC](°)
0

90

180

270
Clear
Left arm bending (Specify bending position)[LZ](mm)
Clear
Right Arm Bending (Specify bending direction) [RZ](mm)
Clear
Arm length cutting (Right) [RC](mm)
Clear
Left Arm Bending (Specify bending direction) [LBC]
0

90

180

270
Clear
Arm Angle
- Arm Angle 90° (Right Winding)
- Arm Angle 135° (Right Winding)
- Arm Angle 180° (Right Winding)
- Arm Angle 90° (Left Winding)
- Arm Angle 135° (Left Winding)
- Arm Angle 180° (Left Winding)
Clear
Inner Dia. D
2

3

4

5

6
Clear
Wire Dia. d(Ø)
0.3

0.4

0.5

0.6

0.8

1
Clear
Number of Winding
- 3
- 4
- 5
Clear
Addtional Machining
- A (Single arm length specified)
- B (Single arm bending)
- C (Double arm length specified)
- D (Single arm length specified+ Single arm bending)
- E (Double arm bending)
- F (Double arm length specified+ Single arm bending)
- G (Single arm length specified+ Double arm bending)
- H (Double arm length specified+ Double arm bending)
- None
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

1 Day(s) or Less

5 Day(s) or Less

9 Day(s) or Less

10 Day(s) or Less

16 Day(s) or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Frequently asked question (FAQ)

Question: What is the function of the torsion spring?: Answer: The torsion spring is used to control the movement of machine parts, alleviate impact or vibration, store energy, measure force, etc. It is widely used in computers, electronics, home appliances, cameras, instruments, doors, motorcycles, harvesters, automobiles and other industries.
Question: Can alterations be made to the arm length and bending?: Answer: Bending alterations can be performed on the torsion spring products of MISUMI brand for the arm length, the rotation angle and the specified size. The minimum order quantity is low and the corresponding shipment can be made in a short delivery time. Welcome to make an inquiry.
Question: What parameters need to be determined generally in the design of the torsion spring?: Answer: (1) Free Length (2) Control Diameter: (a) Outer Diameter, (b) Inner Diameter, (c) Sleeve Inner Diameter, or (d) Outer Diameter of Traversed Round Rod (3) Steel Wire Size “Wire Diameter” (4) Material (Type and Grade) (5) Number of Coils: (a) Total Number of Coils and (b) Right-Hand or Left-Hand (6) Torsional Force: Force applied for deflecting to a certain angle Max. deflection (Angle from free position) (8) End Form
Question: What is the material of the torsion spring?: Answer: The torsion spring is a mechanical part that works with elasticity. It is generally made of spring steel, and some can deal with various working conditions after heat treatment and surface treatment. Generally, it has mechanical properties of high strength and good elasticity.
Question: What are the materials used for springs and what are their respective applications and allowable temperatures?: Answer: Piano steel wire, SWP-A, SWP-B, cold rolled drawing material with high strength and excellent homogeneity, used for the high-quality spring or forming, with the allowable temperature of 110℃.
Hard steel wire, SWB, applicable to general stress, used for the low price spring or forming, with the allowable temperature of 110℃.
- SWC, used for the high-quality spring or forming, with the allowable temperature of 110℃.
Carbon steel for spring (oil tempered steel wire), SWO-A, SWO-B, quenched and tempered material, used for springs of general purposes, with the allowable temperature of 120 ℃.
Carbon steel for valve spring (oil tempered steel wire), SWO-V, tempered material, in good surface condition, with equal tensile strength, and with the allowable temperature of 120℃. [More below]
Question: What are the materials used for springs and what are their respective applications and allowable temperatures?: Answer:
Chrome vanadium steel for valve spring (oil tempered steel wire), SWOCV-V, quenched and tempered materials, used for shock load or slightly high temperature, with the allowable temperature of 220℃.
Silicon chrome steel for valve spring (oil tempered steel wire), SWOSC-V, quenched and tempered materials, used for shock load or slightly high temperature, with the allowable temperature of 245℃.
Stainless steel wire for spring, SUS302 (-WPA, -WPB), used for general corrosion resistance and heat resistance, magnetic, with the allowable temperature of 290℃.
- SUS316 (-WPA, -WPB), good heat resistance, better corrosion resistance than 302, magnetic, with the allowable temperature of 290℃.
- SUS631 J1-WPC, precipitation hardening after spring processing, high strength, used for general corrosion-resistant materials, magnetic, with the allowable temperature of 340℃.

Check other FAQ (3 items) Hide

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C-UA135L3-4-0.4
C-UA135L3-4-0.5
C-UA90R3-4-0.5
C-UA90R3-5-0.4
C-UA90R3-5-0.5

Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	Arm Angle	Inner Dia. D	Wire Dia. d (Ø)	Number of Winding	Addtional Machining	Arm length cutting (Left) [LC] (mm)	Right Arm Bending (Specify bending direction) [RBC] (°)	Left arm bending (Specify bending position)[LZ] (mm)	Right Arm Bending (Specify bending direction) [RZ] (mm)	Arm length cutting (Right) [RC] (mm)	Left Arm Bending (Specify bending direction) [LBC]
MYR 1.32	100 Piece(s)	Available	16 Day(s)	Arm Angle 135° (Left Winding)	3	0.4	3	None	-	-	-	-	-	-
MYR 1.32	100 Piece(s)	Available	16 Day(s)	Arm Angle 135° (Left Winding)	3	0.4	4	None	-	-	-	-	-	-
MYR 1.32	100 Piece(s)	Available	16 Day(s)	Arm Angle 135° (Left Winding)	3	0.5	4	None	-	-	-	-	-	-
MYR 0.74	100 Piece(s)	Available	5 Day(s)	Arm Angle 90° (Right Winding)	3	0.5	4	None	-	-	-	-	-	-
MYR 0.84	100 Piece(s)	Available	5 Day(s)	Arm Angle 90° (Right Winding)	3	0.4	5	None	-	-	-	-	-	-
MYR 0.74	100 Piece(s)	Available	5 Day(s)	Arm Angle 90° (Right Winding)	3	0.5	5	None	-	-	-	-	-	-

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Torsion Springs, Arm Angle (90°/135°/180°) (C-UA90R3-4-0.4)

Economy Torsion Spring

Torsion Springs Product Overview

Torsion Springs Product Features

Torsion Springs Dimensional Drawing

Torsion Springs Specifications Overview

Torsion Springs Precautions

Torsion Springs Example of Use

Part Number

Basic Information

Configure

Specification/Dimensions

Arm length cutting (Left) [LC](mm)

Right Arm Bending (Specify bending direction) [RBC](°)

Left arm bending (Specify bending position)[LZ](mm)

Right Arm Bending (Specify bending direction) [RZ](mm)

Arm length cutting (Right) [RC](mm)

Left Arm Bending (Specify bending direction) [LBC]

Arm Angle

Inner Dia. D

Wire Dia. d(Ø)

Number of Winding

Addtional Machining

CAD

Days to Ship

Specify Alterations

Frequently asked question (FAQ)

Products like this...

Additional Products in this Category

Tech Support

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About MISUMI

About this Website

Useful Tools

Customer Service

Social Media

MISUMI Contact 9am – 6pm (Mon – Fri) * Order cut-off time is 5pm, 9am – 1pm(Sat) * Order cut-off time is 12pm