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Hi-Q Coupling Half, 0.75 Inch Bore, 3/16 Inch Key

Description & Features

The Hi-Q Coupling Half, 0.75 Inch Bore, 3/16 Inch Key, engineered by Maurey Manufacturing Co., is designed for precision and durability. Crafted from sintered metal, this coupling half offers robust performance across various applications such as coupling hydraulic pumps to electric motors.

With a 0.75-inch bore and 3/16-inch key, this coupling compensates for minor angular and centerline misalignments while preventing metal-to-metal contact. Its fast installation process and rust-resistant properties ensure long-lasting utility.

Suitable for use in temperatures ranging from -20deg;F to 180deg;F with Buna-N spider and -80deg;F to 180deg;F with Urethane spider, it offers flexible performance options. The couplingrsquo;s maximum angular offset capability is 1deg;, while its maximum parallel offset capability is 0.015 inches.

Horsepower ratings stand at 3.2 for Buna-N and 5.0 for Urethane, calculated at 1800 RPM for driving hydraulic pumps.

MPN: L095X3/4

Specifications

Coupling Size L095	For Use With Hi-Q® Flexible Couplings	Horsepower Rating Buna-N: 3.2 hp, Urethane: 5.0 hp	Material Steel	Sg Materials FC050-FC095 - Sintered Metal, FC099-FC225 - Machined Cast Iron	Sg Temperature Range -20 to 180 deg F Buna-N Spider, -80 to 180 deg F Urethane Spider

Product Questions & Answers (3)

Question by: Howard E on May 14, 2025, 9:23 PM

Got a motor shaft that’s 3/4 and takes a 3/16 key. Is this coupling half the right bore and keyway for that?

Answer by: Customer Support on May 16, 2025, 8:01 AM

It matches a 0.75 inch bore with a 3/16 inch key, so it lines up with a 3/4 inch keyed shaft in those sizes.

Question by: Dale S on Nov 21, 2025, 7:01 PM

what's the temp range on the spider for this coupling? got a spot where it gets pretty cold in winter and hot as blazes come july

Answer by: Customer Support on Nov 23, 2025, 6:18 AM

The Buna-N spider handles anywhere from -20°F up to 180°F, so seasonal swings in most working environments won't be an issue. If you're dealing with something colder than that on the low end, the Urethane spider goes all the way down to -80°F and still tops out at 180°F on the high side. Either way, summer heat in a typical industrial setting shouldn't push you past that upper limit.

Question by: Lyle H on Sep 30, 2025, 10:32 AM

got a 3/4 shaft with a 3/16 keyway, is this coupling half the right fit or am i missin something

Answer by: Customer Support on Oct 2, 2025, 8:17 AM

It matches a 0.75 inch bore and a 3/16 inch key. It is a Hi-Q coupling half meant for that shaft and key size, commonly used when coupling a hydraulic pump to an electric motor.