13 best flexible spider couplings
Flexible spider couplings, often referred to as spider couplings or simply flexible couplings, are mechanical devices used in various industrial applications, especially within the realm of power transmission products. These couplings serve a crucial role in connecting two shafts, allowing for the transmission of motion, torque, and power between them. Here are some key points about flexible spider couplings:
Design: Flexible spider couplings consist of three main components: two hubs and an elastomeric spider insert. The hubs are typically made of metal and have a cylindrical shape with an inner bore to accommodate shafts.The elastomeric spider insert, often made of rubber or other elastomers, fits between the hubs and provides flexibility and damping properties.
Purpose: The primary purpose of flexible spider couplings is to connect two shafts that may not be perfectly aligned or that may experience angular, axial, or parallel misalignment during operation. They compensate for these misalignments while transmitting rotational motion and torque between the shafts.
Misalignment Compensation: Flexible spider couplings are effective in compensating for misalignment between connected shafts. This helps prevent premature wear and damage to the connected machinery, such as motors, pumps, and other industrial equipment.
Vibration Dampening: The elastomeric spider insert serves as a vibration damper, reducing the transmission of vibrations and shock loads from one shaft to the other. This is crucial for protecting sensitive components and improving the overall performance and longevity of the machinery.
Applications: Flexible spider couplings are used in a wide range of industrial applications, including conveyor systems, pumps, compressors, generators, and various machinery where the precise alignment of shafts is challenging or where vibration control is essential.
Sizes and Configurations: These couplings come in various sizes and configurations to accommodate different shaft diameters and power transmission requirements. The choice of coupling size and type depends on the specific application's needs.
Maintenance: Flexible spider couplings require minimal maintenance. Regular inspection for wear and tear of the elastomeric insert is recommended, and damaged inserts should be replaced to ensure continued reliable performance.
Benefits: The benefits of using flexible spider couplings include increased equipment lifespan, reduced downtime due to maintenance and repairs, and improved overall system performance by minimizing wear and tear on connected components.
In summary, flexible spider couplings are essential components in power transmission products and industrial machinery. They provide the necessary flexibility to accommodate misalignment between shafts, dampen vibrations, and ensure efficient and reliable power transmission in a wide range of industrial applications within the field of industrial scientific products.
Below you can find our editor's choice of the best flexible spider couplings on the market
Zeberoxyz 2PCS 5mm to 8mm Aluminium Plum Flexible Shaft Coupling Diameter20mm Length25mm 5x8mm Motor Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor（5x8mm）
Product description
Product Specification:
Product Name: Shaft Plum Coupling
Type: Plum Shaped
Shaft Usage: 5mm to 8mm / 0.19inch to 0.31inch
Size: L25mm x D20mm/0.98inch x 0.79inch( L*D)
Material: Aluminum Alloy,Polyurethane,Surface oxidation treatment
Main Color: Silver Tone,Red
Weight: 34g
The shaft couplers are mainly used for CNC machines,servo motors, spindle, step motor etc
Package Content:
2 x Shaft Plum coupling
1x Allen Key
PLEASE NOTE:
The shaft coupler is not elastic, can not modify the concentricity.
Shaft must be located in a straight line.
If your equipment is eccentric already, then it will make noise and cause off-centering.
Please be cautious before your final purchasing, thank you.
Any question or problem, do not hesitate to contact us,We will reply you within 24 hours.
- Size:L25mm x D20mm/0.98inch x 0.79inch( L*D) Bore Diameter: 5mm to 8mm / 0.19inch to 0.31inch
- Material: Aluminum alloy, Surface oxidation treatment; Type: Plum shaped
- Super torque can absorb vibration, appropriate a large torque transmission.High hardness,Durable,and excellent response,not easy to loosen
- Flexibility of coupling shaft removes stress between the motor and driving components, The coupling can be disassembled and used in combination by itself
- The shaft couplers are mainly used for CNC machines,servo motors, spindle, step motor etc
Lovejoy 62069 Size CJ 24 Curved Jaw Coupling Spider, Urethane - 98 Shore A, Red, 530 in-lbs Nominal Torque, 10600 rpm Max Rotational Speed
Lovejoy
Product description
This Lovejoy curved jaw coupling spider replaces the spiders on Lovejoy curved jaw style flexible spider coupling assemblies and is made of urethane for transferring and absorbing shock load. This center element, also known as a spider, absorbs shock and misalignment within the coupling assembly for reduced wear on the shaft assembly. Lovejoy curved jaw style couplings are a type of flexible coupling suitable for use in various industrial power transmission applications such as compressors, blowers, pumps, conveyors, mixers, and gear boxes, among others.
Flexible couplings are used to link two rotating shafts that are not aligned in order to transmit the rotational power, known as torque, from one shaft to the other. Most flexible couplings consist of two hubs and a middle assembly; each hub attaches to a shaft while the middle assembly flexes between the hubs to accommodate the misalignment of the two shafts. Shaft misalignments are generally either parallel or angular and cause complications to transmitting rotational power from one shaft to another in the form of stresses, loads, vibrations, and other forces, which vary from one type of misalignment to another. Flexible couplings are used in a broad range of applications, such as in motor vehicles, conveyors, escalators, agricultural, forestry and mining equipment, aeronautics, robotics and space exploration, among others.
Lovejoy manufactures flexible couplings, universal joints, variable speed drives and various other transmission and mechanical power products. Their products meet the standards of the International Organization for Standardization (ISO), the Deutsches Institut für Normung (DIN), the American National Standards Institute (ANSI), the American Gear Manufacturers Association (AGMA), the Society of Automotive Engineers (SAE) and Japanese Industrial Standards (JIS) for quality assurance. The company, founded in 1900, is based in Downers Grove, IL.
- For use with Lovejoy curved jaw style flexible coupling assembly (sold separately)
- Urethane for transferring and absorbing shock load
- Absorbs shock and misalignment within the coupling assembly for reduced wear on the shaft assembly
uxcell 6.35mm to 8mm Bore L26xD20 Flexible Spider Coupling Jaw Coupler Shaft Joint for Servo Motor
- General purpose power transmission coupling, also used in motion control applications and rotational power transmissions, is good replacement for your needs.
- It is designed to transmit torque while damping system vibrations and accommodating misalignment to protect other components from damage.
- Jaw couplings have three parts: two metallic hubs and an elastomer insert called an element, but commonly called "spider".
- Color: Silver Tone; Material: Aluminum Alloy; Fixed Type: Clamp; Thread Size: M3; Connection Diameter: 6.35mm to 8mm; Total Length: 26mm/1.02 inch; Outside Diameter : 20mm/ 0.79 inch; ; Package List:; 1x Flexible Shaft Coupler
- Wear resistant ,high hardness and excellent response.Super elastic torque can absorb vibration, appropriate a large torque transmission.
Product features
UXCELL coupling series
It is designed to transmit torque while damping system vibrations and accommodating misalignment to protect other components from damage.General purpose power transmission coupling, also used in motion control applications and rotational power transmissions, is good replacement for your needs.Jaw couplings have three parts: two metallic hubs and an elastomer insert called an element, but commonly called "spider".
Know the size you need
We provide various kinds of rigid flange coupling for choosing.Please check the correct size-d1,d2,L and D before purchase
Spider Parts
Jaw couplings have an elastomer insert called an element, but commonly called "spider".
CNC Machine
Flexible Coupling, suitable for model shaft connection, perfect accessories for RC Model motor, etc.
Befenybay 2PCS 5mm to 8mm Aluminium Plum Flexible Shaft Coupling D25 L30 5x8mm Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor（5x8mm）
befenybay
Product description
PLEASE NOTE: The shaft coupler is not elastic, can not modify the concentricity.Shaft must be located in a straight line. If your equipment is eccentric already, then it will make noise and cause off-centering. Please be cautious before your final purchasing, thank you. Product Name: Shaft Plum Coupling Type: Plum Shaped Shaft Usage: 5mm to 8mm / 0.19inch to 0.31inch Size: :L30mm x D25mm/1.18inch x 0.98inch( L*D) Material: Aluminum Alloy,Polyurethane Main Color: Silver Tone,Red Weight: 31.5g x 2pcs The shaft couplers are mainly used for CNC machines,servo motors, spindle, step motor etc Package Content: 2 x Shaft Plum coupling 1x Allen Key
- Size:L30mm x D25mm/1.18inch x 0.98inch( L*D) Bore Diameter: 5mm to 8mm / 0.19inch to 0.31inch
- Material: Aluminum alloy Type: Plum shaped
- Super torque can absorb vibration, appropriate a large torque transmission.High hardness,Durable,and excellent response,not easy to loosen
- Flexibility of coupling shaft removes stress between the motor and driving components
- The shaft couplers are mainly used for CNC machines,servo motors, spindle, step motor etc
1" L100 Flexible 3-Piece L-Jaw Coupling Coupler Set & Buna-N NBR Rubber Spider
Lexar Industrial
Product description
3-piece L100 series coupling set includes two coupling halves and an NBR rubber insert.
1" bore with 1/4" keyway and 2 set screws on each of the coupling halves.
Interchangeable with Lovejoy, Martin, Browning, TB Woods, and other L-jaw couplers.
- Outside Diameter: 2-1/2
- Assembled Length Of Set: 3-1/2
3Pcs 8x10mm Shaft Coupling Servo/Stepper Motor Jaw Shaft Coupler 8mm to 10mm Aluminum Jaw Spider Plum Coupling D25L30 Connector for 3D Printer/DIY Encoder/CNC Machine
Product description
Package include:
3Pcs 8x10-25x30mm Plum Couplings
Features:
Aluminum flexible coupler
8mm to 10mm ID bore/ 0.31 to 0.39 inch
Offset screw for clamping to shaft
Designed for light to medium duty .
No backlash – no maintenance
Compatible with NEMA 17/23 motor
Outsize size:25x30mm OD / 0.98 to 1.18inch OD
Mainly used for servo motors, spindle, step motor ,3d printer and so on.
Wear resistant ,high hardness and excellent response.
- Model Number:8x10-25x30mm
- Flexible or Rigid:Flexible
- Material: Aluminum alloy, polyurethane; Type: Plum shaped
- The shaft couplers are mainly used for servo motors, spindle, step motor,3d printer etc
- Structure:Jaw / Spider
LO75 Lovejoy" Style Flexible Coupling Spider (Replacement Part) for Log Splitters, Hydraulic Systems, Etc
Tool-Tuff
Product description
Interchangeable Compatible with Lovejoy, Tool-Tuff, Woods, and other 3-Jaw Coupler types sized LO75 Material: Nitrile rubber For reference, LO75 couplers measure 1.75" in diameter
6.35 x 9.5mm 1/4" x 3/8" Flexible Shaft Coupling Rigid Coupler D25 L30
Product description
D25 L30 Flexible Shaft Coupling Rigid Coupler 6.35 x 9.5mm 1/4" x 3/8"
- Size: 6.35 x 9.5mm (1/4" x 3/8")
- Notice: The size is refer to the hole, for example 6mm x 8mm is known as one head of the hole diameter is 6mm, the other is 8mm
- Outside diameter: 25mm; Length: 30mm
- Material:Aluminum
- Package included: 1 x Coupler
L110 Flexible NBR Rubber Spider Insert Fits L-110 Lovejoy Martin L-Jaw Coupling
Lexar Industrial
Product description
L110 series flexible L-jaw coupling spider only fits L110 couplings.
NBR / Buna-N / Nitrile rubber insert.
Interchangeable with Lovejoy, Martin, Browning, TB Woods, and other L-jaw couplers.
- Diameter: 3-1/4"
- Material: Buna-N Nitrile Rubber
- ** For Use With L-110 Series Couplings **
1/2" to 7/8" L075 Flexible 3-Piece L-Jaw Coupling Set & Buna-N NBR Rubber Spider
Lexar Industrial
Product description
3-piece L075 series coupling set includes two coupling halves and an NBR rubber insert.
1/2" bore with 1/8" keyway and set screw on one coupling half.
7/8" bore with 3/16" keyway and set screw on the matching coupling half.
Interchangeable with Lovejoy, Martin, Browning, TB Woods, and other L-jaw couplers.
- Outside Diameter: 1-3/4
- Assembled Length of Set: 2-1/8
User questions & answers
| Question: | What is the total length of all pieces together |
| Answer: | 2.15" Just click on the additional photos and it has the specs and dimensions for each size. |
uxcell 5mm to 8mm Bore L31xD20 Flexible Spider Coupling Jaw Coupler Shaft Joint for Servo Motor
- General purpose power transmission coupling, also used in motion control applications and rotational power transmissions, is good replacement for your needs.
- It is designed to transmit torque while damping system vibrations and accommodating misalignment to protect other components from damage.
- Jaw couplings have three parts: two metallic hubs and an elastomer insert called an element, but commonly called "spider".
- Color: Silver Tone; Material: Aluminum Alloy; Fixed Type: Clamp; Thread Size: M3; Connection Diameter: 5mm to 8mm; Total Length: 31mm/1.22 inch; Outside Diameter : 20mm/ 0.79 inch; ; Package List:; 1x Flexible Shaft Coupler
- Wear resistant ,high hardness and excellent response.Super elastic torque can absorb vibration, appropriate a large torque transmission.
Product features
UXCELL coupling series
It is designed to transmit torque while damping system vibrations and accommodating misalignment to protect other components from damage.General purpose power transmission coupling, also used in motion control applications and rotational power transmissions, is good replacement for your needs.Jaw couplings have three parts: two metallic hubs and an elastomer insert called an element, but commonly called "spider".
Know the size you need
We provide various kinds of rigid flange coupling for choosing.Please check the correct size-d1,d2,L and D before purchase
Spider Parts
Jaw couplings have an elastomer insert called an element, but commonly called "spider".
CNC Machine
Flexible Coupling, suitable for model shaft connection, perfect accessories for RC Model motor, etc.
1/2" to 1" L095 Flexible 3-Piece L-Jaw Coupling Coupler Set & Rubber Spider
Lexar Industrial
Product description
3-piece L095 series coupling set includes two coupling halves and an NBR rubber insert.
1/2" bore with 1/8" keyway and set screw on one coupling half.
1" bore with 1/4" keyway and set screw on the matching coupling half.
Interchangeable with Lovejoy, Martin, Browning, TB Woods, and other L-jaw couplers.
- Outside Diameter: 2-1/8
- Assembled Length of Set: 2-1/2
User questions & answers
| Question: | Does this replace a L |
| Answer: | No. The L090 coupling is the same diameter but shorter than the L095. The dimensions can be found in the product listing description as well as the photos. |
| Question: | Can I get a .625" to |
| Answer: | 0.625 is 5/8" ( 5 / 8 = .625) Yes, you can get a 5/8 to 1 set. You need to check the dimensions to see if you have the L075 series, L095 series, etc. |
| Question: | is this for halh inch pump side 1 inch on motor side |
| Answer: | Yes, 1/2" on one side and 1" on the other. You need to determine if you have an L095 or an L075 coupling. The L095 series is 2-1/8" in diameter and 2-1/2" long. Dimensions are shown in all of the listings. |
| Question: | can i get 1/2" on both sides |
| Answer: | Yes, the 1/2" set is available here: https://www.amazon.com/Flexible-3-Piece-Coupling-Buna-N-Rubber/dp/B01NCVWETE You can also search: Part number: 361083539499 Amazon ASIN: B01NCVWETE |
uxcell 6mm to 7mm Bore L31xD20 Flexible Spider Coupling Jaw Coupler Shaft Joint for Servo Motor
- General purpose power transmission coupling, also used in motion control applications and rotational power transmissions, is good replacement for your needs.
- It is designed to transmit torque while damping system vibrations and accommodating misalignment to protect other components from damage.
- Jaw couplings have three parts: two metallic hubs and an elastomer insert called an element, but commonly called "spider".
- Color: Silver Tone; Material: Aluminum Alloy; Fixed Type: Clamp; Thread Size: M3; Connection Diameter: 6mm to 7mm; Total Length: 31mm/1.22 inch; Outside Diameter : 20mm/ 0.79 inch; ; Package List:; 1x Flexible Shaft Coupler
- Wear resistant ,high hardness and excellent response.Super elastic torque can absorb vibration, appropriate a large torque transmission.
Product features
UXCELL coupling series
It is designed to transmit torque while damping system vibrations and accommodating misalignment to protect other components from damage.General purpose power transmission coupling, also used in motion control applications and rotational power transmissions, is good replacement for your needs.Jaw couplings have three parts: two metallic hubs and an elastomer insert called an element, but commonly called "spider".
Know the size you need
We provide various kinds of rigid flange coupling for choosing.Please check the correct size-d1,d2,L and D before purchase
Spider Parts
Jaw couplings have an elastomer insert called an element, but commonly called "spider".
CNC Machine
Flexible Coupling, suitable for model shaft connection, perfect accessories for RC Model motor, etc.
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