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Precision Gears (Metric)

Gears are rotating machine parts that are used to transmit rotational motion and torque. Generally consisting of a flat disc with protruding teeth, or cogs, gears mesh with another toothed part (usually one or more other gears, which is then referred to as a gear train, or transmission). When combined in the proper ratio, precision gears can change the speed, torque, and even the direction of a power source. When one gear is larger than the other, a mechanical advantage is produced, with the torque and rotational speed of the gears varying in relation to their respective diameters.
Ondrives.US manufactures precision gears for all applications, offering standard and custom metric gears in a variety of styles and configurations. Our metric precision gear options include precision spur gears, pinion gears and shafts, gear racks, helical gears, bevel gears, worms and wormwheel gears, and technical gears.
We also offer a full line of precision gears in inch sizes.

Metric Spur Gears

Designed to mesh with other spur gears (or “straight-cut gears”) to turn parallel shafts in opposite directions, the spur gear is the simplest type of gear. If your application requires that two shafts/gear rotate in the same direction, a third spur gear (an idler gear) can be installed between the two. Ondrives.US manufactures a full line of precision metric spur gears.

Metric Pinion Gears & Pinion Shafts

The term “pinion gear” generally refers to the smallest gear in a gear train, which functions as a gear reducer. Any gear with less than twelve teeth may also be considered a pinion gear. We offer precision metric pinion gears, as well as metric pinion shafts, which feature a pinion machined directly into the end of a shaft. We can provide pinion gears and shafts in spur, helical, and bevel configurations and a full range of standard and custom sizes.

Metric Gear Racks

Gear racks can be mated with gears to convert rotary motion into linear motion, or vice versa. Also called a rack gear, a gear rack is a straight or gradually curved metal rod with a row of machined-in gear teeth running down the length. We manufacture precision metric spur gear racks that are designed to be paired with our metric spur gears; rectangular- or round-rod models are available.

Metric Helical Gears

A modified, more advanced version of spur gears, helical gears feature teeth that are set at an angle to the axis of rotation, instead of parallel to it, as spur gears’ teeth are. The angled teeth engage more gradually than spur gear teeth, providing smoother and quieter operation. Our metric helical gears are available with left-hand or right-hand helixes, and with tooth helix angles of 45°, 19°31’, and 15°. Two helical gears of the opposite hand, used together, will act like spur gears and turn parallel shafts in the same direction; a pair of same-hand 45° helical gears will turn parallel shafts that are 90° from each other.

Metric Bevel Gears & Miter Gears

Used where the axes of two shafts intersect, bevel gears feature conically-shaped tooth-bearing faces that allow them to be used at an angle to the other gear face (most often 90°, though other angles are possible). Miter gears are two identical bevel gears that are mated at a right angle (90°); miter gears most often transmit motion at a 1:1 ratio—ratios as high as 4:1 are possible. Ondrives.US manufactures precision metric bevel gears and miter gears in standard and custom sizes and configurations to meet your needs.

Metric Wormwheel Gears & Worms

Wormwheel gears, or worm gears, are designed to pair with worms, or worm drives, to transfer motion between non-intersecting shafts at right angles from each other. Worm gears resemble spur gears, worms resemble screws. Together, they can provide a high reduction ratio in a very small total footprint. Our compact metric worm gears and worms deliver smooth, ultra-quiet operation.

Modified & Custom Metric Gears 

If your application requires a non-standard gear or gears, Ondrives.US can provide modified or custom metric gears that match your unique specifications. Modified and custom gears give you the best fit and performance for your motion/power transfer system. Contact us for the custom metric gears you need.


Technical Specs for Ondrives.US’ Metric Gears

From material options to modification capabilities to lubrication requirements, we offer complete technical information for all of our precision metric gears. You’ll find full mechanical specifications, engineering data, and more.

Contact Us for Precision Metric Gears

Ondrives.US quality surpasses the competition! Our precision metric gears are designed, engineered, and manufactured to provide optimum performance and durability in any application. Request a quote on metric gears, or contact us for more information.
Inch-measure precision gears are also available.