Climax SDA-137 Mild Steel Step Down Adapter – 1 3/8″ Bore, Black Oxide

Description

Product Overview

The Climax SDA-137 is a precision‑engineered step down adapter crafted from high‑grade mild steel and finished with a durable black oxide coating. Designed for rigid clamp‑on coupling applications, it features a 1 3/8″ bore that mates securely with a 1 1/8″ outer diameter shaft, effectively reducing shaft size while preserving alignment. The adapter’s compact 2 3/8″ length and 1/4‑28 x 3/4″ set screw provide a robust, slip‑free connection that can withstand demanding torque loads. Its black oxide surface offers modest corrosion resistance, extending service life in harsh industrial environments. Package dimensions of 5.6 x 2.2 x 2 inches and a weight of 3.2 pounds make it easy to handle and store.

Usage

This adapter is ideal for power transmission systems where shaft diameters differ, such as in conveyor drives, pump assemblies, and gearboxes. It excels in applications that require quick installation without extensive disassembly, allowing maintenance crews to minimize downtime. The design fully engages the shaft without marring, making it suitable for both new installations and retrofits in existing machinery. Its corrosion‑resistant coating ensures reliable performance in environments with exposure to moisture, chemicals, or temperature fluctuations, making it a trusted component for factories, processing plants, and heavy‑duty equipment.

Why Choose Us

Choosing the Climax SDA-137 means selecting a product backed by decades of engineering expertise from Climax Metal Products Company, a recognized leader in industrial coupling solutions. Each adapter undergoes rigorous quality control testing to verify dimensional accuracy, torque capacity, and material integrity. The black oxide finish not only adds a sleek appearance but also provides a layer of protection against rust and wear. Our commitment to customer satisfaction includes responsive technical support, detailed installation guidance, and a straightforward return policy, ensuring that you receive a reliable solution that meets your exact specifications.

Key Features

• Reduces shaft outer diameter from 1 1/8″ to 1 3/8″ for easy fit‑up
• Fully engages shaft without marring, ensuring precise alignment
• Black oxide coating provides corrosion resistance in harsh conditions
• Compact 2 3/8″ length and sturdy set screw for secure, slip‑free connection
• Backed by Climax’s expert technical support and hassle‑free after‑sales service

FAQ

What material is the SDA-137 made from?

The adapter is fabricated from mild steel, which offers a good balance of strength, machinability, and cost‑effectiveness for most industrial applications.

Can the adapter be used with shafts larger than 1 1/8″?

The SDA-137 is specifically sized for a 1 1/8″ outer diameter shaft. For larger shafts, a different model or custom solution would be required to ensure proper fit and performance.

How does the black oxide finish protect the adapter?

Black oxide creates a thin, protective layer that reduces surface oxidation and offers modest resistance to moisture and chemicals, helping to prolong the adapter’s service life.

Is the set screw compatible with standard tools?

Yes, the 1/4‑28 x 3/4″ set screw can be tightened using common hex or screwdriver tools, allowing quick and secure installation without special equipment.

What is the torque capacity of the SDA-137?

While the exact torque rating depends on the specific system configuration, the SDA-137 is designed to handle typical torque loads encountered in rigid clamp‑on coupling applications, providing reliable power transmission when installed correctly.