Showing 1–12 of 13 results

Block and Pin universal joints are a cheap coupling but with their own disadvantages.

  1. Speed – Block and Pin or Friction bearings as they are also called can only run at a maximum of 1750 rpm. This limiting speed is due to the fact the design of the block can seize if ran too fast and the heat generated by the joints speed causes the block to expand and cause the pins to seize in their holes.
  2. Angle of misalignment – This again is another limiting factor of the block and pin uni joints. It is limited to 25 degrees because the design of the pins in the block this is as much as it can flex.
  3. Constant greasing – The design of the u-joint means that being constantly fed grease is the only way to keep it from seizing from the angle of use as well as the speed. The grease builds a layer of protection and keeps the pins in the block lubricated.

Regardless of how slow its run, the angle of use and even constantly greased (huge maintenance overhead) the pins will still wear in the block, leading to increased vibration meaning the block and pin have to be replaced. usually at a cost of 50% of the original purchase price.

This makes these cheap uni joints not so cheap , both with the constant greasing and inspection, as well as the eventual replacement of the block and pin.

Twin Spring Coupling is an alternative to block and pin/friction bearing uni joints with none of the downside

TSC can

Run up to 7000 rpm

Flexible to us to 45 degrees

No internal components that need constant greasing and replacing.

 

$295.00

Lovejoy D-10B 3/4" T6061 Aluminum universal Joint, replace today with a Twin Spring Coupling TSC500. Nominal Torque: 500ft lbs./495kw/6000 in lbs. Flexible: Up to 35°. High Speed: Up to 7000 RPM. No bearings to grease or replace when worn. Replaces Lovejoy, Belden, Ruland, Curtis, SKF, Spicer, Boston Gear, SIT and all other universal joint manufacturers.  

$175.00

Lovejoy D5B  1/2" Block and pin universal joint couplings, replace today with a Twin Spring Coupling TSC150. Nominal Torque: 150ft lbs./149kw/1800 in lbs. Flexible: Up to 25°. High Speed: Up to 7000 RPM. No Friction bearings to grease or replace when worn. Replaces Lovejoy, Belden, Ruland, Curtis, SKF, Spicer, Boston Gear, SIT and all other universal joint manufacturers.

$175.00

Lovejoy D-6B 3/4" block and pin universal joint, replace today with a Twin Spring Coupling TSC150. Nominal Torque: 150ft lbs./149kw/1800 in lbs. Flexible: Up to 25°. High Speed: Up to 7000 RPM. No bearings to grease or replace when worn. Replaces Lovejoy, Belden, Ruland, Curtis, SKF, Spicer, Boston Gear, SIT and all other universal joint manufacturers.

$275.00

Lovejoy D-8B 1/2" friction bearing universal joint, replace today with a Twin Spring Coupling TSC500. Nominal Torque: 500 ft lbs/495kw/6000 in lbs. Flexible: Up to 35°. High Speed: Up to 7000 RPM. No bearings to grease or replace when worn. Replaces Lovejoy, Belden, Ruland, Curtis, SKF, Spicer, Boston Gear, SIT and all other universal joint manufacturers.  

$275.00

Lovejoy D-8B 3/4" block and pin universal Joint, replace today with a Twin Spring Coupling TSC500. Nominal Torque: 500ft lbs./495kw/6000 in lbs. Flexible: Up to 35°. High Speed: Up to 7000 RPM. No bearings to grease or replace when worn. Replaces Lovejoy, Belden, Ruland, Curtis, SKF, Spicer, Boston Gear, SIT and all other universal joint manufacturers.  

$175.00

TSC150 Industrial 7/16" universal joint or jaw coupling alternative with the TSC150. A no maintenance, spider/bearing free alternative. Capable of speeds up to 7000 rpm. Flexible to 25° verses the 1/2°-1° with all types of jaw couplings. Able to handle 1800 in lbs./149Kw @ 7000 rpm torque. Replace Lovejoy, Ruland, Guardian Couplings, Belden, TB Woods, KTR, SKF, Boston Gear, SIT, Martin and all other uni joints and jaw coupling manufacturers

$265.00

Lovejoy D-7 3/4" block and pin universal joint replacement. Replace today with a Twin Spring Coupling TSC300. Nominal Torque: 300ft lbs./295kw/3600 in lbs. Flexible: Up to 45°. High Speed: Up to 7000 RPM. No bearings to grease or replace when worn. Replaces Lovejoy, Belden, Ruland, Curtis, SKF, Spicer, Boston Gear, SIT and all other universal joint manufacturers.

$265.00

Lovejoy DD-7 block and pin universal joint replace with a Twin Spring Coupling TSC300. Nominal Torque: 300ft lbs./295kw/3600 in lbs. Flexible: Up to 45°. High Speed: Up to 7000 RPM. No bearings to grease or replace when worn. Replaces Lovejoy, Belden, Ruland, Curtis, SKF, Spicer, Boston Gear, SIT and all other universal joint manufacturers.

$265.00

TSC300 1/2" universal joint and jaw coupling alternative, replace both with a Twin Spring Coupling TSC300. Nominal Torque: 300ft lbs./299kw/3600 in lbs. Flexible: Up to 45°. High Speed: Up to 7000 RPM. No bearings to grease or replace when worn. Replaces Lovejoy, Belden, Ruland, Curtis, SKF, Spicer, Boston Gear, SIT and all other universal joint manufacturers. Replaces Guardian Couplings, TB Woods, KTR, Martin and all other jaw coupling manufacturers.

$265.00

TSC300 3/4" universal joint and jaw coupling alternative, replace both with a Twin Spring Coupling TSC300. Nominal Torque: [email protected], 3600 in lbs. Flexible: Up to 45°. High Speed: Up to 7000 RPM. No bearings to grease or replace when worn. Replaces Lovejoy, Belden, Ruland, Curtis, SKF, Spicer, Boston Gear, SIT and all other universal joint manufacturers. Replaces Guardian Couplings, TB Woods, KTR, Martin and all other jaw coupling manufacturers.

Agriculture Universal Joint replacement (PTO, Attachments, Pumps and Driveline)

TSC300 Agriculture 1 3/4″ Universal joint and jaw coupling alternative

$275.00

TSC300 Agriculture 1 3/4" universal joint and jaw coupling replacement for driveshaft, farm equipment, pumps and attachments. Nominal Torque: 300ft lbs./249kw/3600 in lbs. Flexible: Up to 45°. High Speed: Up to 7000 RPM. No bearings to grease or replace when worn. Replace Weasler, Walterscheid, Neapco, Bondioli, Spicer, SKF, SIT Moog couplings and all other universal joint manufacturers.

Agriculture Universal Joint replacement (PTO, Attachments, Pumps and Driveline)

TSC300 Agriculture 1″ Universal joint and Jaw Coupling alternative

$275.00

TSC300 Agriculture 1" Keyway alternative for universal joint and jaw coupling in a driveshaft, headers, equipment and attachments. Nominal Torque: 300ft lbs./295kw/3600 in lbs. Flexible: Up to 45°. High Speed: Up to 7000 RPM. No bearings to grease or replace when worn. Replace Weasler, Walterscheid, Neapco, Bondioli, Rexnord, Spicer, SKF, Moog and all other universal joint manufacturers.