The S1811Y-RB-3P is a 48 diametral pitch, 20° pressure angle, 18-inch long precision rack made of 416 stainless steel, designed for linear motion in rack-and-pinion systems. It features a pitch diameter tolerance of +0.000/-0.001, tooth-to-tooth spacing error within ±0.0005, and total accumulated spacing error within ±0.002. Parallelism of the pitch line to the base is held within ±0.001. The rack has a pitch line to base distance of 0.4592 inch and a thickness of 0.230 inch, with an overall length of 18 inches and a nominal pitch of 0.0208 inch per tooth. The part is rectangular in profile and intended for applications requiring precise linear motion control.
A gear rack is used to create linear motion out of rotary motion. Gear racks have square or round shafts with straight, equally spaced teeth; a pinion gear’s teeth mesh with the teeth of the rack. We combined as a unit they are referred to as a “rack and pinion”.
Gear racks are used in a variety of applications, and it may be necessary to pair them for length. Pairing can be accomplished by having racks with matching machined ends. They can also be modified to contain mounting holes. Racks and pinions are found in lifting and positioning systems where vertical or horizontal linear movement is necessary. They are commonly found in steering systems for vehicles, lathes, packaging machines, depth and height gauges, elevators, gates, stair lifts, and pneumatic actuators, to name a few.
Our inch and metric gear racks are available in steel, stainless steel, aluminum, nylon, and plastic in a variety of finishes and heat treatments, in pitches ranging from 120 to 1/20 and modules from 0.3 to 10.
Call us: 516-328-3300
| Stock Drive Products & Sterling Instrument - SDP/SI | |
|---|---|
| Product Category | Gears |
| Product Number | S1811Y-RB-3P |
| Product Name | 48 D.P., 20° Pressure Angle, 18" Long 416 Stainless Steel Rack |
| Gear Type | Rack |
