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TB Wood's 8J coupling sleeve insert is ideal for efficient and reliable connection between two rotating shafts to protect equipment from vibration, shock misalignment and end float. This coupling sleeve insert is used in conveyors, blowers, motors, compressors, mixers & pumps in manufacturing, automotive and industrial machinery.
Features:
TB Wood's 8J coupling sleeve insert features an EPDM body for excellent tear, abrasion and steam resistance.
It has an operating temperature of -30 to 275 degrees F and a 1475 lb-inch rated torque.
Frequently Asked Questions:
Q. How to install TB Wood's 8J coupling sleeve inserts?
A.
Thoroughly examine all coupling components and eliminate any protective coatings, lubricants, paint or rust from bores, mating surfaces and fasteners. Ensure that shafts are free from any existing burrs or imperfections.
Employ keys as necessary and slide one hub onto each shaft. If utilising QD or Taper-Lock hubs, adhere to the instructions provided with the SureGrip or Taper-Lock bushings.
For spacer coupling use high-speed rings and loosely install one ring on each half element.
Position one-half element on the hubs to determine the appropriate spacing of the hub. If employing spacer elements with high-speed rings, hold both half elements on the hubs to confirm that the rings do not encounter any interference.
Securely but lightly fasten hubs to shafts, preventing movement during alignment procedures.
Without rotating the coupling, employ a calliper to measure the widest point around the hub. Adjust the calliper to the narrowest point using feeler gauges. Reposition the equipment until this value is minimised.
Utilising the misalignment value obtained in the previous step, consult the maximum allowable parallel misalignment. Without rotating the shaft, utilise a straight edge around the hub and determine the maximum offset using feeler gauges. If necessary, readjust the shafts and recheck parallel alignment.
Tighten fasteners on the motor and drive equipment according to the manufacturer's specifications. Recheck both parallel and angular alignment.
Once the parallel and angular alignment values fall within the service ratings, ensure that all set screws, cap screws and other fasteners are securely tightened as specified. Recheck both parallel and angular alignment after tightening.
Install the coupling guard as per relevant safety regulations.
Periodically inspect the alignment, as settling can often cause changes in equipment position.
Q. What is the maximum speed that TB Wood's 8J coupling sleeve inserts can withstand?
A. These inserts are designed to operate at a maximum speed of 4500 RPM.
Q. How to determine the proper size of TB Wood's 8J coupling sleeve inserts?
A.
Determine the classification of the prime mover: Identify the specific type of prime mover utilised, whether it is an electric motor, internal combustion engine or another power source. This classification plays a vital role in choosing the suitable coupling for the intended application.
Compute the design horsepower or design torque: Based on the power output of the prime mover and the load requirements, calculate the necessary design horsepower or design torque required for the coupling. This calculation incorporates factors like speed, torque and efficiency to ensure that the coupling can effectively handle the desired power transmission.
Evaluate the characteristics of the load and service factor: Assess the distinctive characteristics of the driven equipment's load, encompassing aspects, such as starting torque, speed fluctuations, shock loads and other pertinent parameters. Additionally, take into consideration the service factor which accounts for the duty cycle of the application, as well as any intermittent or peak loads.
Choose the appropriate coupling: Once the design horsepower or torque has been determined, select a suitable coupling that can meet the specified requirements. Consider various factors, including coupling type, size and specific features that align with the demands of the application.
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