Gear Couplings

Features

NARA gear couplings consist of internal spur gears in the sleeves and external spur gears with crowned teeth on the hubs, both of which are in mesh when assembled.


Since these spur gears are designed to employ an involute tooth profile and have a special form on the top and bottom lands of their teeth, taking account of the tilting and lubrication, equal speed rotation and smooth power transmission can be obtained even when a little tilting occurs between the sleeves and the hubs.

Characteristics

• Despite the capacity to handle heavy loads, Nara gear couplings are much smaller and lighter than other couplings. Noise or vibration is hardly produced even at high-speed operation. Service taps in sleeve and hub make it easier to disassemble and assemble the gear couplings.
• Nara gear couplings can be protected against offset and anguar displacement of the shafts, and have greater horse-power capacity than other flexible couplings of comparable size. Positive lubrication cushions the load and provides long life.
• Nara gear couplings up to size 400 are mass-procuced and kept in stock to permit quick delivery upon request. Large sizes and special type can be manufactured by your requirements.