Lovejoy CJ 28/38B Curved Jaw Coupling 25 mm Bore Hub w Kw

Name: Lovejoy CJ 28/38B Curved Jaw Coupling 25 mm Bore Hub w Kw - Twin Spring Coupling - Premium Power transmission couplings
SKU: B004QX0278
Price: 43.90 USD
Availability: InStock

$43.90

Lovejoy CJ 28/38B Curved Jaw Coupling 25 mm Bore Hub w Kw

Specifications

Description	CJ28/38B-HUB-PM-25MMH7-8X3.3MMKW
Hub Style	B
Type	Curved Jaw Couplings
Material	Powder Metal
Weight	1.75 lb
Style	Bored
Color	Metallic
Coupling Type	Jaw

SKU: B004QX0278 Categories: Agricultural couplings, Industrial, Jaw Couplings, Spider Tags: CJ28/38, curved jaw, hub, lovejoy

Description

Lovejoy CJ 28/38B Curved Jaw Coupling 25 mm Bore Hub w Kw.

Lovejoy 68514461165 Size CJ 28/38B Curved Jaw Coupling Hub, Powdered Metal Steel, Metric, 25 mm Bore, 2.56” OD, 3.54” Overall Coupling Length, 8 mm x 3.3 mm Keyway.

Dimensional Data.

Bore Size	25.00 mm
Coupling Size	28/38
Set Screw Size	5/16-18
Set Screw Style Coupling Location Size (Dimension SL)	0.590 in14.99 mm
Keyway Size	8 x 3.3 mm
Length thru Bore (Dimensions LTB1/LTB2)	1.38 in35.05 mm
Outside Diameter	2.560 in65.02 mm
Overall Coupling Length	2.070 in52.58 mm
Spider Inside Diameter	1.180 in29.00 mm
Spider Outside Diameter	2.560 in65.00 mm
Spider Thickness (Dimension W)	0.590 in15.00 mm
Min. Bore (Dimensions ID1/ID2)	0.870 in22.00 mm
Max. Bore (Dimensions ID1/ID2)	1.5 in38 mm
Dimension G	0.790 in20.07 mm
Dimension HD	2.560 in65.02 mm
Distance between Spider and Hub Face (Dimension CL)	0.100 in2.54 mm
Cubic inches	13.56595 in³

Performance Data.

Normal Temperature Range (with 80 Shore A, 92 Shore A, and 95/98 Shore A spiders)	-40 to 212 ºF
Max. Temperature Range (with 80 Shore A, 92 Shore A, and 95/98 Shore A spiders)	-50 to 248 ºF
Nominal Torque (with 92 Shore A spider)	840.00 in·lb95.00 N·m
Max Torque (with 92 Shore A spider)	1680.00 in·lb190.00 N·m
Speed	8500.00 rpm
Angular Displacement	0.050 in
Max. Angular Displacement (∆ Ka), n=1500 [1/min]	0.90 º
Max. Axial Displacement (∆ Ka)	0.0600 in
Max. Radial Displacement (∆ Kr)	0.0100 in

The Curved Jaw Design.

Three piece design that is easy to assemble.
The curved jaw design incorporates both radial and axial curvature (crowning) to the elastomer (spider).
Hubs are offered in sintered iron, steel, aluminum, cast iron and nodular iron materials.
Three different urethane elastomers available.
No metal to metal contact and no lubrication required.
Fail safe design due to the jaw in compression design (continues to function after the elastomer fails).
The CJ series covers a torque range of 67 to 247,800 in-lbs.

Elastomer Characteristic.

Four types of spiders are available for the CJ Series of couplings.
Urethane spiders provide high abrasion resistance and elasticity, along with good damping characteristics.
The spiders are offered in a variety of shore hard nesses, each providing a different level of torque capacity, damping, and chemical resistance.
The 92A shore insert (yellow in color) is the standard, offering excellent torque carrying capacity.
The 80A shore insert (blue) offers the best damping characteristics.
The 95/98A shore spider (red) offers higher torque than the standard 92 shore, but retains greater damping capacity compared to the 64D shore insert (green).
The 64D shore insert is offered for high humidity environments, higher temperatures, and offers the highest torque capacity.
The standard curved jaw spider design has a hole in the center to accommodate small between shaft end measurements.
The 80A, 92A, and 95/98A shore spiders have a temperature capacity of 212° F.
The 64D shore spider has a temperature capacity of 230° F.
The curved jaw spider’s urethane material also resists oil, dirt, sand, grease, moisture, many solvents, as well as atmospheric effects of ozone.