D-Rings
D-Rings Overview

D-rings are widely recognized in various industrial sectors due to their high strength, wide adaptability, and high reliability. Their cross-section is shaped like the letter "D," with a planar inner surface and a rounded outer surface, forming a stable sealing connection. The unique design of D-rings endows them with numerous performance advantages, making them superior in both strength and functionality, and a preferred sealing component for many industrial applications. Because of their robustness, adaptability, and stable sealing performance, D-rings have become an indispensable core sealing component in various industries.
KODA supplies D-rings in various specifications and convenient kits to fully meet the needs of various application scenarios. Whether purchasing a single replacement or a complete set for equipment maintenance and on-site repairs, KODA D-rings provide stable and reliable sealing performance, excellent durability, and a convenient assembly experience.
Properties of D-rings
- High load-bearing capacity: The optimized D-ring structure can withstand large loads and external impacts, ensuring a secure and reliable connection.
- Excellent durability: Made of nitrile rubber, it possesses excellent wear resistance, tear resistance, and scratch resistance, making it suitable for harsh working conditions.
- Suitable for dynamic and rotating scenarios: The flat base structure enhances sealing stability, effectively reducing twisting, rolling, and spiral failure issues that may occur during seal movement.
- Dual advantages in wear resistance and pressure resistance: Combining excellent wear resistance and pressure resistance, it significantly extends service life and ensures long-term sealing reliability.
- High compression resilience: Maintains a stable compression state even in applications with fluctuating or changing pressure, achieving a durable and tight seal.
Common uses of D-rings
D-rings are widely used in the automotive and transportation industries, serving in cargo securing systems, truck bed liners, and vehicle interiors to firmly secure goods and ensure safe and reliable transport. In applications requiring stringent resistance to oil, fuel, and other liquid corrosion, such as automotive engines, hydraulic systems, and pumps, D-rings also provide excellent sealing.
In industrial manufacturing, D-rings are common components in various mechanical equipment, providing stable connection points for belts, chains, slings, and other fasteners, contributing to the safe and efficient operation of equipment.
Furthermore, the healthcare industry utilizes D-rings in various applications, such as patient restraint devices, medical equipment, braces, and orthopedic devices, providing adjustable and secure fastening solutions for these devices.
The core advantages of D-rings compared to O-rings
Compared to O-rings, D-rings offer the following significant advantages:
- Versatility: Due to its shape, the D-ring offers a wider range of applications, easily connecting and adjusting straps, hooks, and other accessories.
- Ease of Use: The D-ring is easy to use, allowing for quick snap-fitting or unscrewing, making it ideal for applications requiring frequent adjustments or disassembly.
- Enhanced Strength: The D-ring provides greater strength and load-bearing capacity, making it suitable for heavier loads and harsher environments.
- More Secure Fixation: The D-ring’s flat sides provide a more secure connection point, minimizing the risk of slippage or accidental detachment.
- Longer Service Life: The D-ring has a longer service life than other sealing methods, reducing maintenance costs and downtime.
- Easy Installation: The D-ring’s design facilitates installation, reducing the probability of installation damage.
- Cost-Effective Solution: The D-ring provides a cost-effective sealing solution for many applications, delivering value without compromising performance.
D-rings and O-ring grooves
One of the core advantages of D-rings lies in their excellent compatibility with the standard grooves of O-rings. D-rings can be directly installed into the existing grooves of O-rings, achieving a seamless upgrade and replacement from O-rings to D-rings.
This compatibility avoids large-scale structural modifications or process adjustments to equipment, significantly reducing upgrade costs. See the table below for various specifications of D-rings and their corresponding AS568 standard dimensions.
| D-Ring | d1 (in) | D1 (in) | L1 (in) | F (in) | Flange Size - in | d1 (mm) | D1 (mm) | L1 (mm) | F (mm) | DASH # |
|---|---|---|---|---|---|---|---|---|---|---|
| 1P-3709 | 2.497 | 2.75 | 0.195 | 0.134 | 2.25 | 63.9 | 69.85 | 5 | 3.4 | 230 |
| 1P-3708 | 2.247 | 2.5 | 0.195 | 0.134 | 2 | 57.4 | 63.5 | 5 | 3.4 | 228 |
| 1P-3707 | 2.134 | 2.4 | 0.195 | 0.134 | 1.875 | 54.2 | 60.96 | 5 | 3.4 | 227 |
| 1P-3706 | 1.997 | 2.25 | 0.195 | 0.134 | 1.75 | 51.1 | 57.15 | 5 | 3.4 | 226 |
| 1P-3705 | 1.747 | 2 | 0.195 | 0.134 | 1.5 | 44.7 | 50.8 | 5 | 3.4 | 224 |
| 1P-3704 | 1.494 | 1.75 | 0.195 | 0.134 | 1.25 | 38.2 | 44.45 | 5 | 3.4 | 222 |
| 1P-3703 | 1.244 | 1.5 | 0.195 | 0.134 | 1 | 31.9 | 38.1 | 5 | 3.4 | 218 |
| 1P-3702 | 0.994 | 1.25 | 0.195 | 0.134 | 0.75 | 25.4 | 31.75 | 5 | 3.4 | 214 |
| 1P-3700 | 0.744 | 1 | 0.195 | 0.134 | 0.5 | 19 | 25.4 | 5 | 3.4 | 210 |
D-ring kit
Our D-ring kits offer customized solutions, designed for both convenience and durability. They contain a variety of commonly used D-ring sizes, and all products are stored in sturdy, well-organized dedicated containers for easy storage and retrieval.
Kit Features:
- Includes D-rings in a variety of common sizes.
- Packed in a sturdy, durable plastic shell with a locking mechanism for added protection.
- Includes a complete label indicating the size, quantity, and location of each D-ring in the kit.
- Customizable label with the option to add your company logo.