7-1/4" Triplex Spring 2-Piece Kit – 1-1/4" Bore with Hardware for Commercial Garage Door Springs
7-1/4" Triplex Spring 2-Piece Kit – 1-1/4" Bore with Hardware for Commercial Garage Door Springs
1-1/4" Bore with Hardware
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The 7-1/4" Triplex Spring 2-Piece Kit with 1-1/4" Bore is a heavy-duty spring assembly kit designed for large commercial and industrial garage door spring systems. This kit is used with compatible triplex spring assemblies where a 7-1/4" spring size and 1-1/4" bore are required.
Triplex spring systems are typically used in demanding overhead door applications where heavier doors, larger spring assemblies, or specialized commercial setups require properly matched spring hardware. This 2-piece kit helps complete the spring assembly and provides the necessary hardware for compatible 7-1/4" triplex spring configurations.
Because this is a specialty commercial spring assembly part, it is intended for professional garage door technicians, commercial overhead door companies, spring builders, and maintenance crews working on large door systems.
Compatibility & Fitment
This triplex spring 2-piece kit is designed for compatible 7-1/4" spring assemblies requiring a 1-1/4" bore. Before ordering, confirm the spring size, bore requirement, shaft size, spring configuration, wind direction, cone setup, door weight, and full door system specifications.
The 1-1/4" bore is an important fitment detail. This kit should only be used when the torsion shaft and spring assembly require a 1-1/4" bore. Using the wrong bore size or incorrect spring hardware can create unsafe operation, poor fitment, spring failure, or serious door balance problems.
This kit is not intended for standard residential torsion spring systems such as 1-3/4", 2", 2-5/8", or 3-3/4" inside-diameter springs. It is made for large commercial and industrial spring assemblies where triplex spring hardware is required.
Key Features
7-1/4" triplex spring 2-piece kit
1-1/4" bore
Includes hardware
Designed for compatible commercial triplex spring assemblies
Used in large garage door and overhead door spring systems
Suitable for commercial and industrial door repair
Professional-grade spring assembly component
Helps complete properly matched triplex spring setups
Ideal for commercial door technicians and spring builders
Specialty part for heavy-duty overhead door applicationsBest Applications
Commercial overhead garage doors
Industrial sectional garage doors
Warehouse overhead doors
Loading dock doors
Heavy-duty torsion spring systems
Triplex spring assembly repair
Large spring system replacement jobs
Commercial garage door maintenance
Spring assembly fabrication
Professional garage door service inventoryInstallation Notes
Before installation, verify the full spring assembly requirements, including spring size, bore size, torsion shaft size, spring configuration, cone type, winding hardware, stationary hardware, bearing plates, drums, lift cables, and door weight. This kit must be matched to the correct triplex spring system.
Incorrect spring hardware can result in improper fitment, unsafe winding, spring slippage, spring failure, or an unbalanced garage door. This product should only be used with properly matched commercial-grade spring components.
Safety Notice
Garage door springs and spring assemblies are under extreme tension and can cause serious injury, death, or major property damage if installed, wound, modified, or serviced incorrectly. This product is for professional use only and should be installed by trained garage door or commercial overhead door technicians.
Do not attempt to assemble, wind, unwind, or repair commercial torsion spring systems without the proper tools, training, and safety procedures. Always confirm that the spring assembly, cones, shaft, cables, drums, bearings, and door system are correctly matched before operating the door.
Why Buy From Garage-DoorParts.com
Garage-DoorParts.com supplies professional garage door parts for contractors, technicians, service companies, maintenance teams, property managers, and knowledgeable buyers. This 7-1/4" triplex spring 2-piece kit with 1-1/4" bore is a specialty spring assembly component for commercial and industrial overhead door applications where correct fitment and reliable hardware are critical.
Common Search Terms
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Details
This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.
Shipping & Returns
We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.
We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.
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