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Hi-Q Coupling Half, 1.13 Inch Bore, 1/4 Inch Key

Description & Features

Hi-Q Coupling Half provides an efficient solution for coupling hydraulic pumps to electric motors and is versatile for various industrial applications. It boasts a 1.13-inch bore and a 1/4-inch key ensuring compatibility with standard specifications. The coupling prevents metal-to-metal contact compensating for minor angular and centerline misalignments.

Constructed with precision from sintered metal or machined cast iron this coupling half is designed for durability and rust resistance. It has a maximum angular offset capability of 1 and a maximum parallel offset capability of 0.015 inches. The horsepower ratings are 13.1 for Buna-N and 28.8 for Urethane making it suitable for demanding operations.

Installation is straightforward and quick with each part precision-ground for an exact fit. The coupling maintains performance across temperature ranges of -20F to 180F for Buna-N and -80F to 180F for Urethane spiders ensuring consistent functionality in various environments.

Horsepower ratings are based on a 1800 RPM for driving hydraulic pumps with a service factor of 1.5. For other speeds or applications refer to the tables in the Technical Information section.

Supplier Part Number: L110-1-1/8

MPN: C1EP77

Specifications

Coupling Size L110	For Use With Hi-Q® Flexible Couplings	Horsepower Rating Buna-N: 13.1 hp, Urethane: 28.8 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 (2)

Question by: Harold L on Jun 25, 2025, 3:19 PM

So, is this here coupling just half of what I need? Gotta get two, right?

Answer by: Customer Support on Jun 26, 2025, 9:05 PM

Yes, that's correct. You'll need to order two of these coupling halves to complete a full coupling assembly.

Question by: Norm H on May 4, 2025, 9:12 PM

got a 1-1/8 shaft with a 1/4 keyway, is this the right coupling half for that?

Answer by: Customer Support on May 6, 2025, 8:54 AM

With a 1.125 inch bore and a 1/4 inch key, it matches a 1-1/8 inch shaft that uses a 1/4 inch key.