Jaw coupling spiders are used to connect two shafts for torque transmission between them. They absorb shocks and vibrations and compensate for misalignment between the two shafts. These jaw coupling... Read More
Jaw coupling spiders are used to connect two shafts for torque transmission between them. They absorb shocks and vibrations and compensate for misalignment between the two shafts. These jaw coupling spiders are flexible elastomeric elements that sit in the middle of the coupling and connect the two hubs. Raptor Supplies offers various jaw coupling spiders from brands like Dayton, Boston Gear, Ruland Manufacturing, Lisle, Lovejoy and TB Woods. Read Less
Lovejoy snap wrap spider couplings provide shaft-to-shaft connection for power transmission and accommodating parallel & angular misalignment in industrial machinery, electric motors & compressors. These jaw couplings feature radially removable elastomeric cushions for ease-of-maintenance and no metal to metal contact for wear minimisation. SOX (NBR) rubber / urethane construction provides resistance against oil, sand, dirt, grease & moisture while ensuring fail-safe operation, even upon elastomeric cushion failure. These snap wrap spiders are capable of delivering torque up to 3510 inch-lb and the collar configuration of these snap wrap spiders can achieve the same speed as standard couplings since the collar is attached to one hub. Raptor Supplies, a trusted distributor of Lovejoy snap wrap spiders, also offers coupling spacers, jaw couplings, sleeve gear couplings, gaskets, hydraulic tanks and related accessories.
Ruland Manufacturing curved jaw coupling spiders are designed to dampen shocks and accommodate misalignment (angular, parallel & axial) between coupling hubs. The spider couplings fit between two coupling hubs for a secure connection. They are made from polyurethane, do not require lubrication and can hold up against dirt, sand, grease, oil & moisture. These coupling inserts are used with coupling hubs and can handle torque ratings up to 8000 RPM. Choose from a wide range of coupling spiders, available in 4 and 6 arm options on Raptor Supplies.
Dayton jaw coupling inserts are used for dampening shock & vibrations between coupling hubs to accommodate small amount of misalignment including angular, parallel and axial. The complete assembly requires two jaw hubs and a spider for transmitting higher torque and prevent misalignment between the connecting shafts. These Buna-N inserts provide excellent oil and impact resistance and are capable of withstanding temperatures up to 212 degrees F. Choose from an extensive range of these jaw coupling inserts, available in lengths ranging from 0.433 to 0.866 inches.
Dayton spider inserts are used in conjunction with metal jaw couplings for uniform power transmission while maintaining their structure and position. These hytrel spider inserts offer excellent oil and impact resistance and are capable of withstanding temperatures ranging from -60 to 70 degrees F. The complete assembly comprises two jaw hubs and a spider for transmitting higher torque and preventing misalignment (angular & parallel) between the connecting shafts. Choose from an array of these jaw coupling spiders, available in lengths ranging between 0.433 & 0.866 inches.
Jaw coupling spiders are used for torque transmission between two shafts and protecting components from damage by dampening vibrations & shocks. Raptor Supplies offers a wide range of reliable jaw coupling spiders from brands such as Boston Gear, Dayton, Lovejoy, Lisle and TB Wood's. Lovejoy L type spiders are designed to accommodate angular and parallel shaft misalignment. These spiders feature urethane, hytrel, bronze or SOX (NBR) rubber construction ensuring excellent abrasion resistance and protection against dirt, oil, sand, grease & moisture. They prevent metal to metal contact, ensuring in less internal wear and deliver torque up to 704 Nm. TB Wood’s urethane jaw coupling inserts are designed for adjusting a maximum of 0.015 inch parallel and 1 degree angular misalignments. These inserts provide 1.5 times higher torque than Buna N inserts, but with reduced vibration damping. They are capable of being operated at temperatures ranging between -30 and 160 degrees F. These jaw coupling spiders are available in heights ranging from 0.44 to 5 inches on Raptor Supplies.
Working Mechanism
The jaw coupling consists of two hubs with curved jaws that interlock with a spider placed in between.
When torque is applied to one of the hubs, it causes the jaws (on that hub) to grip the spider.
This mechanism transfers the torque to the other hub through the jaws on the other side of the spider.
They are used with metal jaw couplings for uniform power transmission while maintaining structure and position.
These Hytrel spider inserts offer excellent oil & impact resistance and are capable of withstanding temperatures ranging from -60 to 70 degrees F.
Their assembly comprises two jaw hubs and a spider for transmitting higher torque and preventing misalignment (angular & parallel) between the connecting shafts.
These flexible snap wrap spiders permit close shaft separation up to the hub's maximum bore size.
They have urethane or SOX (NBR) rubber construction that ensures abrasion resistance and protection against dirt, grease & moisture.
Their snap wrap design allows easy removal of the units without moving the hubs.
Frequently Asked Questions
How to select the right jaw coupling spider for my application?
The selection of a jaw coupling spider depends on the torque capacity, shaft size, operating temperature and chemical compatibility of the material with the fluids or gases being transferred.
How do I install a jaw coupling spider?
Ensure that the shafts are properly aligned and clean.
Place the spider between two coupling hubs and align jaws of hubs with the teeth of the spider.
Tighten the screws or bolts on the hubs to secure the spider.
Finally, check for proper alignment and ensure that the spider is not overstretched or damaged.
How do I maintain a jaw coupling spider?
Regularly inspect it for signs of wear, damage or stretching.
Clean the spider and coupling hubs to prevent the buildup of debris or contaminants.