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Hytrel GS Spider Coupling Rubber Insert – Oil-Resistant Flexible Jaw Coupling Element

Model Number
Check below, custom

GS-7
GS-14
GS-19
GS-24
GS-28
GS-38
GS-42
GS-48
GS-55
GS-65

Product Description

Product Introduction

Hytrel GS Spider Coupling Rubber Insert

The GS spider coupling rubber insert is a flexible elastomeric element designed for GS-type curved jaw couplings. Installed between two metal coupling hubs, the spider transfers torque while helping absorb vibration, reduce torsional shock and compensate for limited shaft misalignment.

Apex Coupling manufactures GS spider inserts using imported Hytrel material, providing excellent wear resistance, oil resistance, flexibility and high-temperature performance.

The GS spider coupling rubber insert is suitable for electric motors, pumps, compressors, gearboxes, fans, conveyors, industrial machinery and other power transmission systems.

Standard GS sizes are available, and OEM, ODM and custom manufacturing can be provided according to drawings, samples or specific application requirements.

Key Features

Imported Hytrel Material

The GS spider insert is manufactured from imported Hytrel elastomer, providing a combination of flexibility, toughness, wear resistance and mechanical durability.

Oil-Resistant Performance

The Hytrel material provides good resistance to many industrial oils and chemicals, making it suitable for machinery operating in demanding environments.

High Temperature Resistance

The material can be used in applications with temperatures of up to approximately 200°C, depending on the actual operating conditions.

Excellent Wear Resistance

The spider continuously works between the coupling jaws. High wear resistance helps extend service life and reduce unexpected replacement.

Vibration and Shock Absorption

The flexible element absorbs torsional vibration and shock between the driving and driven shafts, helping protect connected machinery.

Misalignment Compensation

The flexible spider allows the coupling to accommodate limited angular, parallel and axial shaft misalignment.

Low Maintenance

The flexible jaw coupling design does not require lubrication, making routine maintenance simple.

OEM & Custom Manufacturing

Apex Coupling supports OEM, ODM and custom production according to customer drawings, samples, dimensions and application requirements.

Technical Specifications

Item	Specification
Product Type	GS Spider Coupling Insert
Product Name	Hytrel GS Spider Coupling Rubber Insert
Coupling Type	Flexible Jaw Coupling
Structure	Curved Jaw / Spider
Material	Imported Hytrel
Flexible or Rigid	Flexible
Standard / Nonstandard	Standard / Custom
Temperature	Up to 200°C
Maximum Speed	Up to 2000 RPM
OEM / ODM	Available
Customization	Available
Samples	Available
MOQ	1
Warranty	1 Year
Packing	Cartons & Wooden Boxes
Place of Origin	Guangdong, China
Certification	RoHS, ISO 9001, BV

GS Spider Insert Size Chart

Model	OD (mm)	Bore Diameter (mm)	Thickness F (mm)	Thickness G (mm)	Number of Lobes
GS-7	14	—	7.4	6	4
GS-10	20	—	10	8	4
GS-14	30	—	12	10	4
GS-19	40	18	14.5	12	6
GS-24	54	26	15.2	14	8
GS-28	65	30	19	15	8
GS-38	80	38	22	18	8
GS-42	95	46	24	20	8
GS-48	104	51	25.5	20.5	8
GS-55	120	60	27	22	8
GS-65	135	68	32	26	8
GS-75	161	81	37	30	10
GS-90	199	100	45	34	10

Custom Sizes

Non-standard size required?

Apex Coupling supports OEM and ODM production according to customer drawings, samples and specific dimensional requirements.

Send us your drawing, coupling model or sample for evaluation.

Applications

Industrial Applications

GS Hytrel spider coupling inserts are commonly used in:

Electric motors
Pumps
Gearboxes
Air compressors
Fans and blowers
Conveyors
Machine tools
Industrial automation
Manufacturing equipment
Material handling equipment
Construction machinery
General power transmission systems

How Does a GS Spider Coupling Work?

A GS flexible jaw coupling consists of:

Driving Hub → Hytrel Spider → Driven Hub

The curved jaws of the two metal hubs engage with the spider insert.

During operation, the driving hub transmits torque through the elastomeric spider to the driven hub.

The spider also helps:

Absorb torsional vibration
Reduce shock loads
Compensate for limited misalignment
Reduce noise
Protect connected equipment

The three-piece design also makes the flexible jaw coupling easy to inspect and maintain.

Why Choose Apex Coupling?

Apex Coupling is an industrial power transmission manufacturer specializing in:

Flexible Couplings
Jaw Couplings
Coupling Spiders
Universal Joints
Cardan Shafts
Drive Shafts
Rubber Coupling Elements
Industrial Power Transmission Components

We support:

OEM / ODM / Custom Manufacturing / Sample Orders / Bulk Orders

For distributors and machinery manufacturers, we can produce coupling components according to drawings or existing samples.

FAQ

What is a spider coupling rubber insert?

A spider coupling rubber insert is the flexible elastomeric element installed between the two hubs of a jaw coupling. It transmits torque while absorbing vibration and accommodating limited shaft misalignment.