---
product_id: 65099652
title: "Lovejoy Size, JR4B Universal Joint, Zytel, 3/8\" x 3/8\" Round Bore, No Keyway, 3\" Overall Length, 0.68\" Outer Diameter"
brand: "brand: lovejoy"
price: "KD 9.18"
currency: KWD
in_stock: true
reviews_count: 3
url: https://www.desertcart.com.kw/products/65099652-lovejoy-size-jr4b-universal-joint-zytel-3-8-x-3
store_origin: KW
region: Kuwait
---

# Lovejoy Size, JR4B Universal Joint, Zytel, 3/8" x 3/8" Round Bore, No Keyway, 3" Overall Length, 0.68" Outer Diameter

**Brand:** brand: lovejoy
**Price:** KD 9.18
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Lovejoy Size, JR4B Universal Joint, Zytel, 3/8" x 3/8" Round Bore, No Keyway, 3" Overall Length, 0.68" Outer Diameter by brand: lovejoy
- **How much does it cost?** KD 9.18 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/65099652-lovejoy-size-jr4b-universal-joint-zytel-3-8-x-3)

## Best For

- brand: lovejoy enthusiasts

## Why This Product

- Trusted brand: lovejoy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Flexible couplings are used to link two rotating shafts that are not aligned in order to transmit the rotational power, known as torque, from one shaft to the other. Most flexible couplings consist of two hubs and a middle assembly; each hub attaches to a shaft while the middle assembly flexes between the hubs to accommodate the misalignment of the two shafts. Shaft misalignments are generally either parallel or angular and cause complications to transmitting rotational power from one shaft to another in the form of stresses, loads, vibrations, and other forces, which vary from one type of misalignment to another. Flexible couplings are used in a broad range of applications, such as in motor vehicles, conveyors, escalators, agricultural, forestry and mining equipment, aeronautics, robotics and space exploration, among others.Lovejoy manufactures flexible couplings, universal joints, variable speed drives, and other transmission and mechanical power products. The company, founded in 1900, is headquartered in Downers Grove, IL.

## Features

- Offset pin design for use on hand operated, low-torque drives
- Oil, gasoline, and salt resistant
- Capable for operating angles up to 45 degrees of angular misalignment
- Operating temperature range of -40 to +225 degrees F (-40 to + 107 degrees C)
- Available in round, hex, splined, or keyway bore

## Images

![Lovejoy Size, JR4B Universal Joint, Zytel, 3/8" x 3/8" Round Bore, No Keyway, 3" Overall Length, 0.68" Outer Diameter - Image 1](https://images-na.ssl-images-amazon.com/images/I/31TbCSYMqnL.jpg)

## Customer Reviews

### ⭐ 







  
  
    TOTAL CRAP
  

*by A***R on Reviewed in the United States on October 20, 2017*

What a piece of crap...  Cheap plastic that doesn't even swivel correctly. A COMPLETE WASTE OF MONEY...Do not buy this. I could do a better fix with Gorilla Tape. Quality Control should be ashamed of themselves. I took it out of the package and threw it into the trash. The packaging was worth more than this lousy u-joint.

### ⭐⭐⭐⭐⭐ 







  
  
    Easy to use
  

*by G***E on Reviewed in the United States on May 30, 2019*

Bought this to attach to snow blower, fast service.  Good quality.

### ⭐ 







  
  
    Cheap Plastic !!!!!
  

*by M***E on Reviewed in the United States on October 7, 2016*

Buyer beware. "Zytel" means plastic. Bought for my snowblower auger. Broke after the second revolution. Cheap plastic. Dont buy this item !!!!!!

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**Shop now:** [https://www.desertcart.com.kw/products/65099652-lovejoy-size-jr4b-universal-joint-zytel-3-8-x-3](https://www.desertcart.com.kw/products/65099652-lovejoy-size-jr4b-universal-joint-zytel-3-8-x-3)

---

*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-01-27*