---
product_id: 59829717
title: "Curtis SS650BKW1SS Single Universal Joint, Bored Hub, Setscrew, 303 Stainless Steel, Inch, 3/4\" Bore, 1-1/2\" OD, 4-1/4\" Overall Length, 3/16\" x 3/32\" Keyways, 5/16-18 NC Setscrew Size"
brand: "curtis universal"
price: "₨370"
currency: SCR
in_stock: false
url: https://www.desertcart.sc/products/59829717-curtis-ss650bkw1ss-single-universal-joint-bored-hub-setscrew-303-stainless
store_origin: SC
region: Seychelles
---

# Bored Hub 35° Misalignment Durable 303 SS Curtis SS650BKW1SS Single Universal Joint, Bored Hub, Setscrew, 303 Stainless Steel, Inch, 3/4" Bore, 1-1/2" OD, 4-1/4" Overall Length, 3/16" x 3/32" Keyways, 5/16-18 NC Setscrew Size

**Brand:** curtis universal
**Price:** ₨370
**Availability:** ❌ Out of Stock

## Summary

> 🔧 Elevate Your Engineering Game!

## Quick Answers

- **What is this?** Curtis SS650BKW1SS Single Universal Joint, Bored Hub, Setscrew, 303 Stainless Steel, Inch, 3/4" Bore, 1-1/2" OD, 4-1/4" Overall Length, 3/16" x 3/32" Keyways, 5/16-18 NC Setscrew Size by curtis universal
- **How much does it cost?** ₨370 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/59829717-curtis-ss650bkw1ss-single-universal-joint-bored-hub-setscrew-303-stainless)

## 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

- • **Corrosion Resistance:** Built with 303 stainless steel for unmatched durability.
- • **Precision Engineering:** Crafted for high torsional stiffness and torque capacity.
- • **Versatile Application:** Perfect for various industrial setups with angular misalignment.
- • **Military Grade Quality:** Meets stringent MIL-U-20625A, Class C specifications.
- • **Effortless Installation:** Bored hubs eliminate the need for machining.

## Overview

The Curtis SS650BKW1SS Single Universal Joint is a robust solution designed for applications requiring high torque and angular misalignment capabilities. Made from durable 303 stainless steel, it features bored hubs for easy installation and meets military specifications for quality assurance.

## Description

This Curtis single pin-and-block universal joint made of stainless steel 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 303 stainless steel for strength, durability, and corrosion resistance, and the forks are induction hardened for strength and wear resistance. 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, and a keyway prevents the shaft from rotating in the joint hub. 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 stainless steel single universal joints are suitable for use in applications exposed to corrosive chemicals or water, such as food processing equipment, furnaces, boiler damper controls, and submarine periscopes. 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 usage—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
- 303 stainless steel for strength, durability, and corrosion resistance
- Bored hubs fit onto shafts without the need for machining
- Meets military specification MIL-U-20625A, Class C

## Images

![Curtis SS650BKW1SS Single Universal Joint, Bored Hub, Setscrew, 303 Stainless Steel, Inch, 3/4" Bore, 1-1/2" OD, 4-1/4" Overall Length, 3/16" x 3/32" Keyways, 5/16-18 NC Setscrew Size - Image 1](https://m.media-amazon.com/images/I/41Uu+xP1xZL.jpg)

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-02-22*