--- product_id: 41501846 title: "Curtis CJ642B1SS Single Universal Joint, Bored Hub, Setscrew, Alloy Steel, Inch, 1/4\" Bore, 1/2\" OD, 2\" Overall Length, 4-40 NC Setscrew Size" brand: "curtis universal" price: "KD 0.15" currency: KWD in_stock: false url: https://www.desertcart.com.kw/products/41501846-curtis-cj642b1ss-single-universal-joint-bored-hub-setscrew-alloy-steel store_origin: KW region: Kuwait --- # 1/4" Bore 35Β° Misalignment MIL-Spec Certified Curtis CJ642B1SS Single Universal Joint, Bored Hub, Setscrew, Alloy Steel, Inch, 1/4" Bore, 1/2" OD, 2" Overall Length, 4-40 NC Setscrew Size **Brand:** curtis universal **Price:** KD 0.15 **Availability:** ❌ Out of Stock ## Summary > πŸ”§ Elevate Your Engineering Game! ## Quick Answers - **What is this?** Curtis CJ642B1SS Single Universal Joint, Bored Hub, Setscrew, Alloy Steel, Inch, 1/4" Bore, 1/2" OD, 2" Overall Length, 4-40 NC Setscrew Size by curtis universal - **How much does it cost?** KD 0.15 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/41501846-curtis-cj642b1ss-single-universal-joint-bored-hub-setscrew-alloy-steel) ## Best For - curtis universal enthusiasts ## Why This Product - Trusted curtis universal brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Robust Durability:** Crafted from high-quality alloy steel for unmatched strength and longevity. - β€’ **High Torque Capacity:** Single joint configuration delivers superior torsional stiffness and torque handling. - β€’ **Precision Engineering:** Designed for up to 35 degrees of angular misalignment, ensuring seamless operation. - β€’ **Effortless Installation:** Bored hubs allow for quick fitting onto shafts without the hassle of machining. - β€’ **Military Grade Reliability:** Meets stringent military specifications (MIL-U-20625A, Class A) for peace of mind. ## Overview The Curtis CJ642B1SS Single Universal Joint is a high-performance component designed for applications requiring precision and durability. With a 1/4" bore and a robust alloy steel construction, it accommodates up to 35 degrees of angular misalignment while meeting military specifications for reliability. ## Description This Curtis alloy steel single pin-and-block universal joint with bored hubs is designed to connect two rotating shafts at angles up to 35 degrees in applications requiring higher torque transmission than needle bearing joints. This universal joint compensates for angular misalignments and has a single joint configuration for high torsional stiffness and torque capacity. The hubs, center block, and pins are made of alloy steel for strength, wear resistance, and machinability. Each hub end is ground on center and bored to one-half of the outer diameter, and fits onto shafts without the need for machining. A set screw secures the joint into position on the shaft. The joints are permanently assembled with a small bearing pin that is riveted in place. Joints with an outer diameter size of 7/8-inch and larger can be taken apart and reassembled without special tools (TakeApart feature) in order to replace worn parts or custom machine the hubs. The large bearing pin in the assembly includes a lubrication passage for distributing lubricant in the joint's moving parts. Joints with an outer diameter of 1 to 4 inches also include a ball-spring oil fitting that helps retain lubricant. This Curtis steel single universal joints is suitable for use in a variety of military, commercial, industrial, and medical applications including grain augers, tractor attachments, stock car racers, and in-plant utility vehicles. Universal joints (also called U-joints, universal couplings, Cardan joints, Hooke’s joints, or Hardy-Spicer joints) are used to transmit motion and rotational power, or torque, between two shafts that are offset at an angle. Most universal joints consist of two yokes and a middle assembly; the hub end of each yoke attaches to a shaft while the yoke ears attach to and pivot around the middle assembly to accommodate shaft misalignment. The type of middle assembly determines its usageβ€”pin and block joints are suitable for transmitting high torque, needle bearing joints are used to handle high rotational speeds, and ball and socket joints are used in applications requiring low backlash (play between moving parts). The body of the universal joint may include a single joint to accommodate only angular misalignments between shafts, or two joints to accommodate both angular and parallel misalignments. Available in a variety of materials and configurations, universal joints are used in applications including motor vehicles, conveyors, medical and optical devices, forestry and mining equipment, robotics and space exploration, and aeronautics, among others. Curtis Universal Joint Company manufactures universal joints and assemblies for military, commercial, industrial, and medical applications. The company, founded in 1935, is headquartered in Springfield, MA. ## Features - Single pin-and-block style universal joint for applications with up to 35 degrees of angular misalignment - Single joint configuration provides high torsional stiffness and torque capacity - Alloy steel yokes, pins, and center block for strength and durability - Bored hubs fit onto shafts without the need for machining - Meets military specification MIL-U-20625A, Class A ## Images ![Curtis CJ642B1SS Single Universal Joint, Bored Hub, Setscrew, Alloy Steel, Inch, 1/4" Bore, 1/2" OD, 2" Overall Length, 4-40 NC Setscrew Size - Image 1](https://m.media-amazon.com/images/I/61m8FETUQ7L.jpg) ![Curtis CJ642B1SS Single Universal Joint, Bored Hub, Setscrew, Alloy Steel, Inch, 1/4" Bore, 1/2" OD, 2" Overall Length, 4-40 NC Setscrew Size - Image 2](https://m.media-amazon.com/images/I/51Aa0SYxJML.jpg) ![Curtis CJ642B1SS Single Universal Joint, Bored Hub, Setscrew, Alloy Steel, Inch, 1/4" Bore, 1/2" OD, 2" Overall Length, 4-40 NC Setscrew Size - Image 3](https://m.media-amazon.com/images/I/51vEgJeoeKL.jpg) ![Curtis CJ642B1SS Single Universal Joint, Bored Hub, Setscrew, Alloy Steel, Inch, 1/4" Bore, 1/2" OD, 2" Overall Length, 4-40 NC Setscrew Size - Image 4](https://m.media-amazon.com/images/I/51lKHPd+XpL.jpg) --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.kw/products/41501846-curtis-cj642b1ss-single-universal-joint-bored-hub-setscrew-alloy-steel](https://www.desertcart.com.kw/products/41501846-curtis-cj642b1ss-single-universal-joint-bored-hub-setscrew-alloy-steel) --- *Product available on Desertcart Kuwait* *Store origin: KW* *Last updated: 2026-05-16*