Lovejoy CMM 2.5 HUB 2.375/2.376 5/8KW

Lovejoy 69790411709 Specifications

Description	CMM 2.5 HUB 2.375/2.376 5/8KW
Type	Gear Coupling Hubs
Hub Material	AISI 1045
Style	Bored
Color	Metallic
Coupling Type	Gear
Weight	14.00 lb
Complete Coupling Weight	29.00 lb

SKU: B004QWZY8G Categories: Couplings, Couplings, Collars & Universal Joiners, Gear & Sleeve

Description

Lovejoy CMM 2.5 HUB 2.375/2.376 5/8KW

Lovejoy 69790411709 CMM 2.5 Sier-Bath Continuous Sleeve Gear Coupling, Flex Hub, Steel, Inch, 2.375/2.376″ Bore, 5.50″ Coupling OD, 3750 Maximum Unbalanced RPM, 30200 in-lbs Nominal Torque, 0.625″ x 0.3125″ Keyway

Dimensional Data

Bore Size	2 3/8 in
Size	2 1/2
Keyway Size (W x D)	5/8 in
Overall Length	Determined by Length of Mill Motor Hub
Max. Bore (Dimensions ID1/ID2)	2.630 in 70.00 mm
Outside Diameter	5.500 in 5.50 mm
Dimension CBD	3.750 in 95.25 mm
Max. Safe Counterbore (Dimension CBD1)	3.250 in 82.55 mm
Dimension DC	0.250 in 6.35 mm
Dimension DC1	Determined by Customer Specifications
Dimension G	0.250 in 6.35 mm
Max. Length of Universal Hub (Dimension HL1)	5.130 in 130.30 mm
Dimension HD	3.94 in 100.08 mm
Dimension HL	2.250 in 57.15 mm
Dimension LS	3.060 in 77.72 mm
Dimension R	5.720 in 145.29 mm
Dimension SL	1.530 in 38.86 mm
Cubic inches	34.92810 in³

Performance Data

Nominal Torque	30200.00 in·lb
Max. Speed (Unbalanced)	3750.00 rpm
Max. Angular Misalignment	0.50 º
Parallel Misalignment	0.007 in

Features

Specifically designed for mill motors with tapered bores
Universal hub counterbored for the nut on the end of the motor shaft
One piece cylindrical sleeve for smoother, faster, quieter and safer operation
Quick assembly and disassembly

Notes

HL1 Dimensions are the maximum lengths of Universal hubs kept in stock and altered to customer specifications.
Longer length hubs are made to order.
Dimension CBD1 as shown is the maximum safe counterbore. Diameter of this counterbore is to customer specifications.
Rough bore mill motor hubs are manufactured to HL1 length with straight bores.
Puller Holes are standard on sizes 4 through 12.
Puller Holes are available for sizes 7/8 through 3.5 at an additional charge.
Interference bores with no set screws are standard unless otherwise specified.
Inch bores and keyway tolerances conform to ANSI / AGMA 9002-B04.
For metric bores and keyway, consult Lovejoy Engineering Section.
Larger sizes are available, please consult Lovejoy Technical Support.

Lovejoy CMM 2.5 HUB 2.375/2.376 5/8KW

Industrial Couplings

This Lovejoy CMM Type flex hub is made of steel and is intended for use as a component of a Sier-Bath continuous sleeve gear coupling (not included). This hub is specifically designed for mill motors with tapered bores and is made of American Iron and Steel Institute (AISI) 1045 steel for strength and durability. The hub teeth are fully crowned for larger contact area with the sleeve teeth and lower stress under misaligned conditions, which allows for angular misalignment of up to 0.5 degrees per hub. The hub also accommodates parallel and axial misalignment of the attached shafts. Gear couplings, a type of flexible coupling, use gear teeth on hubs and sleeves to transmit torque and offset rotational misalignment, and are suitable for use in applications involving extended distances between shaft ends, such as metal rolling mills and paper mills.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.