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  2. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  3. Free Fire (video game) - Wikipedia

    en.wikipedia.org/wiki/Free_Fire_(video_game)

    Free Fire Max is an enhanced version of Free Fire that was released in 2021. [ 71 ] [ 72 ] It features improved High-Definition graphics , sound effects , and a 360-degree rotatable lobby. Players can use the same account to play both Free Fire Max and Free Fire , and in-game purchases, costumes, and items are synced between the two games. [ 73 ]

  4. Gear inches - Wikipedia

    en.wikipedia.org/wiki/Gear_inches

    Typical gear ratios on bicycles range from very low or light gearing around 20 gear inches (1.6 metres per revolution), via medium gearing around 70 gear inches (5.6 m), to very high or heavy gearing around 125 gear inches (10 m). As in a car, low gearing is for going up hills and high gearing is for going fast.

  5. Mechanical advantage - Wikipedia

    en.wikipedia.org/wiki/Mechanical_advantage

    The speed ratio for a pair of meshing gears can be computed from ratio of the radii of the pitch circles and the ratio of the number of teeth on each gear, its gear ratio. Two meshing gears transmit rotational motion. The velocity v of the point of contact on the pitch circles is the same on both gears, and is given by

  6. Gear - Wikipedia

    en.wikipedia.org/wiki/Gear

    Worm-and-gear sets are a simple and compact way to achieve a high torque, low speed gear ratio. For example, helical gears are normally limited to gear ratios of less than 10:1 while worm-and-gear sets vary from 10:1 to 500:1. [45] A disadvantage is the potential for considerable sliding action, leading to low efficiency. [46]

  7. Chain drive - Wikipedia

    en.wikipedia.org/wiki/Chain_drive

    Chains are often narrower than belts, and this can make it easier to shift them to larger or smaller gears in order to vary the gear ratio. Multi-speed bicycles with derailleurs make use of this. Also, the more positive meshing of a chain can make it easier to build gears that can increase or shrink in diameter, again altering the gear ratio.

  8. Hub gear - Wikipedia

    en.wikipedia.org/wiki/Hub_gear

    A hub gear, [1] internal-gear hub, [2] internally geared hub [3] or just gear hub [4] is a gear ratio changing system commonly used on bicycles that is implemented with planetary or epicyclic gears. The gears and lubricants are sealed within the shell of the hub gear, in contrast with derailleur gears where the gears and mechanism are exposed ...

  9. Crawl ratio - Wikipedia

    en.wikipedia.org/wiki/Crawl_ratio

    Crawl ratio is a term used in the automotive world to describe the highest gear ratio that a vehicle is capable of. Note that gear ratio, also known as speed ratio, of a gear train is defined as the ratio of the angular velocity of the input gear to the angular velocity of the output gear, and thus a higher gear ratio implies a larger speed reduction, i.e. the input speed is reduced more at ...