塑料齿轮架

Linear motion racks and rack-and-pinion setsRack selection combines tooth geometry with straightness, mounting method, section stiffness and joint strategy when long travel requires multiple lengths.A rack does not have a single center distance along its entire travel unless its mounting is straight and well supported. Tooth geometry, rack bow, joint continuity and the pinion center height all contribute to local backlash.What to define before opening an RFQModule/DP and pressure angleRack section and lengthMating pinion geometryMounting holes or backing supportStraightness, pitch continuity and joint requirementsFor long travel, show how rack segments are located end-to-end. A joint strategy that controls tooth phase and mounting pitch is more useful than specifying a very tight overall length with no assembly datum.How to use this categoryThe product cards below are linked to the live WooCommerce catalogue for Plastic Gear Racks. Open the closest geometry first, then compare its RFQ guidance against your drawing. If no listed product matches the interface, use the custom component route rather than forcing the part into the wrong family.Selection data that separates a usable quote from a generic quoteInputRequired definitionModule or DPDefine on the drawing or project brief before supplier review.Pressure angleDefine on the drawing or project brief before supplier review.Rack lengthDefine on the drawing or project brief before supplier review.Section and pitch-line heightDefine on the drawing or project brief before supplier review.Mounting-hole patternDefine on the drawing or project brief before supplier review.Mating pinionDefine on the drawing or project brief before supplier review.Required straightness / positionDefine on the drawing or project brief before supplier review.Travel, load, speed and environmentDefine on the drawing or project brief before supplier review.Rack performance depends on how the rack is mounted along its length and how the pinion center height is adjusted. Long polymer components also make environmental dimensional change more visible.Engineering review before releaseFor nylon racks, state the service humidity and inspection condition. For precision positioning, evaluate the complete rack, mounting structure and pinion rather than approving pitch alone.Where a material family is not yet fixed, provide the operating temperature, moisture or chemical exposure, mating material, lubrication condition and expected production volume. Those inputs let the process and resin be reviewed together instead of treating the polymer name as the complete design.RFQ and first-sample pathStart with the closest product below, then send the controlled drawing, mating-part information and the dimensions that are critical to function. For a replacement component, include a sample or measured interface data if the original tooth or chain standard is uncertain.Compare materialsCustom engineeringSend an RFQ