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  • Lovejoy Universal Joints, DD and DDX Type, Solid Bore, Steel
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by Lovejoy

Lovejoy Universal Joints, DD and DDX Type, Solid Bore, Steel

Available in multiple versions


Price: $23.55 - $1,216.00
Product Specifications
Brand Name Lovejoy
UNSPSC Code 25173810

This Lovejoy DD-Type universal joint is a double pin and block u-joint for ... Read full product description


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1 B003TW5N62
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$75.20
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1 B003TW5N6M
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$100.00
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1 B003TW5N76
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$95.74
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1 B003TW5N7G
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$113.33
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1 B003TW5N8U
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$127.04
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1 B003TW5N94
In Stock (1)
$136.64
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1 B003TW5N9E
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$162.89
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1 B003TW5N9Y
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$239.97
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1 B003TW5NA8
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$294.35
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1 B003TW5NAS
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$631.29
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1 B003TW5NB2
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$1,216.00
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1 B004RQAAPI
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$23.55
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Product Features

  • Double pin and block universal joint for applications with up to 90 degrees angular misalignment and speeds up to 1,750 rpm
  • Compensates for angular misalignments and shaft separation
  • Steel for strength and durability
  • Solid bore for specific machining
  • Retaining groove for attaching boot

Product Details


Product Description

This Lovejoy DD-Type universal joint is a double pin and block u-joint for connecting two rotating shafts with angles up to 90 degrees and speeds up to 1,750 rpm. It compensates for angular misalignment and shaft separation and has a double joint configuration, providing two points of flexion to help minimize speed fluctuations and torsional vibration during operation. The hubs, center block, and pins are made of steel for strength and durability. It has solid bore hubs for specific machining and a groove on each end for attaching a boot with a retaining ring. This universal joint provides a uniform speed ratio between driving and driven shafts, and is suitable for applications requiring moderate torque transmission, such as farm implements, material handling equipment, and drive shafts.

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.

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.


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