CJ Series Hubs, Cast Iron, A And B Style Metric Bores
LOVEJOY

Outside Dia. Overall Coupling Length Max. Speed Coupling Size Keyway Size Max. Bore Min. Bore Dimension G Price (inc. GST)
95 mm 72.9 mm 6000 RPM 42/55 No Keyway 42 mm 12 mm 25.91 mm SGD 223.50
95 mm 72.9 mm 6000 RPM CJ42/55 - 42 mm 12 mm 25.91 mm SGD 289.25
95 mm 72.9 mm 6000 RPM CJ42/55 - 42 mm 12 mm 25.91 mm SGD 289.25
95 mm 72.9 mm 6000 RPM CJ42/55 - 55 mm 26 mm 25.91 mm SGD 289.25
95 mm 72.9 mm 6000 RPM CJ42/55 - 55 mm 26 mm 25.91 mm SGD 289.25
95 mm 72.9 mm 6000 RPM 42/55 No Keyway 55 mm 26 mm 25.91 mm SGD 223.50
95 mm 72.9 mm 6000 RPM 42/55 8 mm x 3.3 mm 42 mm 12 mm 25.91 mm SGD 289.25
95 mm 72.9 mm 6000 RPM 42/55 10 mm x 3.3 mm 42 mm 12 mm 25.91 mm SGD 289.25
95 mm 72.9 mm 6000 RPM 42/55 10 mm x 3.3 mm 42 mm 12 mm 25.91 mm SGD 289.25
95 mm 72.9 mm 6000 RPM 42/55 10 mm x 3.3 mm 42 mm 12 mm 25.91 mm SGD 289.25
95 mm 72.9 mm 6000 RPM 42/55 12 mm x 3.3 mm 55 mm 26 mm 25.91 mm SGD 289.25
95 mm 72.9 mm 6000 RPM 42/55 14 mm x 3.8 mm 55 mm 26 mm 25.91 mm SGD 289.25
95 mm 72.9 mm 6000 RPM 42/55 16 mm x 4.3 mm 55 mm 26 mm 25.91 mm SGD 289.25
95 mm 125.98 mm 6000 RPM CJ42 - 42 mm 12 mm 25.91 mm SGD 238.57
104.9 mm 80.26 mm 5600 RPM - No Keyway 48 mm 12 mm 27.94 mm SGD 312.28
104.9 mm 80.26 mm 5600 RPM - No Keyway 60 mm 26 mm 27.94 mm SGD 312.28
104.9 mm 80.26 mm 5600 RPM - 10 mm x 3.3 mm 48 mm 12 mm 27.94 mm SGD 394.42
104.9 mm 80.26 mm 5600 RPM CJ48/60 - 60 mm 26 mm 27.94 mm SGD 394.42
119.89 mm 90.93 mm 4750 RPM - No Keyway 55 mm 12 mm 29.97 mm SGD 387.88
119.89 mm 90.93 mm 4750 RPM CJ55/70 - 70 mm 48 mm 29.97 mm SGD 486.48
119.89 mm 90.93 mm 4750 RPM CJ55/70 - 70 mm 48 mm 29.97 mm SGD 387.88
134.87 mm 105.41 mm 4250 RPM - No Keyway 65 mm 12 mm 35.05 mm SGD 539.05
134.87 mm 105.41 mm 4250 RPM - No Keyway 75 mm 58 mm 35.05 mm SGD 539.05
160.02 mm 119.89 mm 3550 RPM - No Keyway 75 mm 12 mm 39.88 mm SGD 788.88
160.02 mm 119.89 mm 3550 RPM - No Keyway 90 mm 50 mm 39.88 mm SGD 788.88
160.02 mm 119.89 mm 3550 RPM CJ75/90 - 75 mm 12 mm 39.88 mm SGD 871.06
160.02 mm 119.89 mm 3550 RPM CJ75/90 - 75 mm 12 mm 39.88 mm SGD 871.06
160.02 mm 119.89 mm 3550 RPM CJ75/90 - 75 mm 12 mm 39.88 mm SGD 871.06
199.9 mm 245.11 mm 2800 RPM 90 No Keyway 90 mm 12 mm 44.96 mm SGD 1,117.55

Description

Flexible couplings are designed for linking two rotating shafts which are not properly aligned, for transmitting rotational power (torque) from one shaft to another. Flexible couplings comprise two hubs and a spider, with each hub being attached to a shaft while the spider flexes between the hubs for accommodating the misalignment between shafts. Shaft misalignments are radial, parallel or angular, and cause complications while transferring rotational power from one shaft to the other, in the form of loads, vibrations, stresses and other forces which change as per the type of misalignment.
Lovejoy coupling hubsare ideal for internal gas combustion engine and electrical motor applications. These Lovejoy CJ coupling hubs feature a curved jaw profile that helps in concentrating torque to the central region of the spider's limbs, thereby improving the efficiency of the elastomeric material. The three piece design of Lovejoy CJ coupling hubs makes them compatible with both radially and axially misaligned spiders.
These Lovejoy CJ coupling hubs are made of cast iron to ensure high compression strength and resisting corrosion on exposed surfaces. These Lovejoy CJ coupling hubs do not require any lubrication and prevent metal to metal contact for reduced friction. Lovejoy CJ coupling hubs, when assembled to form CJ Series couplings, deliver torque ranging from 67 to 247800 inch-lb.

Uses & Applications

Lovejoy CJ coupling hubs are used in conjunction with spiders to form couplings, which are ideal for linking two misaligned rotating shafts. These Lovejoy CJ coupling hubs are used in a wide range of applications, such as conveyors, escalators, motor vehicles, forestry, agricultural & mining, as well as in the robotics & aeronautics industries.

Working Mechanism

Lovejoy CJ coupling hubs are attached with a spider to form a jaw coupling. In these jaw couplings, the spider is compressed between the jaws of the coupling hubs. These jaws operate within the same plane, as the driving hub jaws push towards the driven hub jaws. The legs of the elastomeric spider help in transferring and cushioning the force through coupling absorbers between the driving & driven jaws while being compressed between them. These coupling absorbers are attached for absorbing the vibration and shock from getting transferred, which consequently protects the surrounding components from getting damaged.

Features

  • Lovejoy CJ coupling hubs are used in combination with spiders for joining shafts with parallel, radial or angular misalignment.
  • These Lovejoy CJ coupling hubs are offered in both bored and unbored variants by Raptor Supplies. The bored variants are available in bore sizes ranging from 12 to 90 mm.
  • Lovejoy CJ coupling hubs help in linking the shafts with angular displacement up to 1.2 degrees and axial displacement up to 0.87 inches.
  • These hubs help in rotating the shaft at speeds up to 6000 rpm.
  • These Lovejoy CJ coupling hubs feature cast iron construction to provide high compression strength and corrosion resistance on exposed surfaces.
  • For eliminating misalignments, the distance between the spider and hub face should be between 3.05 and 5.59 mm.
  • These Lovejoy CJ coupling hubs can be used with four types of spiders: 80 Shore A (Blue) for excellent vibration dampening, 92 Shore A (Yellow) for hydraulic applications, 95 / 98 Shore A (Red) for high torque applications and 64 Shore D (Green) for humid environments.
  • Lovejoy CJ coupling hubs are compatible with spiders having thicknesses ranging from 20 to 34 mm.

Standards & Approvals

Lovejoy CJ coupling hubs comply with ISO 9001:2008 international standards for high quality services.

Frequently Asked Questions

What other variants of Lovejoy jaw coupling hubs are offered by Raptor Supplies?

How do you measure a Lovejoy CJ coupling?

  • The BSE (shaft separation) dimension for a Lovejoy coupling should be measured from one end of the first shaft to the other end of the second shaft, not to Lovejoy CJ coupling hub faces.
What is the difference between rigid and flexible couplings?

  • Rigid couplings offer a rigid connection between two shafts that are firmly connected, and facilitate the coupling to transfer torque smoothly throughout the system. Flexible couplings provide flexible connections, and there is a chance of losing some torque during transmission.
Where is the headquarters of Lovejoy?

  • Lovejoy Inc. is headquartered at Downers Grove, Illinois, US
Which company owns Lovejoy Inc.?

  • The Timken Company, the global leader of bearings and power transmission products, owns Lovejoy.

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