Tianjin SWKS Technology & Development Co.,Ltd is one of the most reliable manufacturers and suppliers of custom pom industrial gearbox planet carrier spacer in China. If you're going to buy bulk cheap custom pom industrial gearbox planet carrier spacer, welcome to get quotation from our factory. Quality products and low price are available.
Custom POM Industrial Gearbox Planet Carrier Spacer
Tianjin SWKS Technology & Development Co., Ltd. supplies this custom POM component for industrial gear reducers and planetary gear transmission assemblies. We review customer drawings, functional interfaces and material requirements before establishing a tooling and production proposal. Dimensions, color and assembly features are customized to the approved design. The images show a representative finished component; they are not a claim of interchangeability with an existing machine part.
Contents
- Specification and Custom Options
- Spacing within the planetary assembly
- Material and lubricant review
- Axial stack and seating geometry
- Holes, bosses and molding detail
- Assembly evaluation and inspection
- Manufacturing and Quality Planning
- Quotation and Inquiry
Specification and Custom Options
| Product | Planet Carrier Spacer |
|---|---|
| Material | POM; exact resin grade subject to project approval |
| Manufacturing process | Custom plastic injection molding |
| Application | industrial gear reducers and planetary gear transmission assemblies |
| Key review points | Axial spacing, seating flatness and locating-hole position |
| Dimensions and tolerances | According to approved drawings and inspection requirements |
| Color and surface | Customized; representative image colors shown |
| Drawing formats | STP, STEP, IGS and dimensioned 2D drawings |
| Tooling and samples | Mold review, sampling and customer assembly approval |
| Order details | Quantity, packaging, documentation and lead time by quotation |
Spacing within the planetary assembly
A planet carrier spacer establishes an axial separation between defined faces in a gearbox assembly. It can help keep a carrier, washer or neighboring rotating component in the intended position without making every surrounding housing feature part of the same tolerance stack. The drawing should show which face is stationary, which face can move, and whether the spacer is intended only for assembly location or also for intermittent sliding contact.
Material and lubricant review
POM is considered for mechanical locating components where a controlled surface finish and repeatable molded geometry are required. Selection of the acetal grade follows the lubricant chemistry, temperature, contact conditions and expected service cycle. The spacer is not a gear, bearing or universal thrust element. Its suitability depends on the approved load path and contact area within the actual reducer, with reinforcement or other resin changes discussed before tooling.
Axial stack and seating geometry
The total separation is determined by spacer thickness together with the adjacent washers, carrier faces and housing references. Flatness, parallelism and local seat height may be more useful controls than applying one tight tolerance to every edge. A drawing review should identify the reference faces and the measurement condition. Unintended interference can create drag or prevent complete assembly, while excess clearance can change the intended axial position.
Holes, bosses and molding detail
Locating bosses and bolt-circle holes can be adapted to the carrier arrangement. Their purpose should be distinguished from simple clearance holes, because locating and fastening features require different inspection priorities. Wall transitions and ribs are reviewed to avoid unnecessary thick sections around the bosses. Gating and ejection should protect the seating surfaces, while any oil access or relief feature follows the approved lubrication design.
Assembly evaluation and inspection
Sample parts should be checked with the actual mating carrier, washers and housing. Confirm full seating, the required axial position and free movement through the intended operating cycle. Inspection can include thickness at agreed locations, bore position, hole relationships and the condition of the contact faces. Functional wear or endurance testing belongs to the defined gearbox duty rather than a generic rating assigned to the molded spacer.
Planetary Stage Packaging and Build Review
In a planetary stage, the sun, planet pinions, ring gear and carrier occupy a closely coordinated envelope. A distance ring must leave room for pin ends, circlips and any neighboring stage. Provide an exploded arrangement showing the spacer location relative to the carrier cheeks and the output hub. This helps identify whether the ring centers on a pilot diameter, registers on the housing or follows the carrier as the stage turns.
Planet pin protrusion can limit the usable seating area. Clearance pockets can be considered around individual pin locations when they are part of the approved arrangement. Their depth and angular position should follow a common datum with the three locating bosses. A spacer that appears symmetric from outside may still require an orientation mark or a keyed feature to prevent incorrect installation between successive reduction stages.
Grease-filled and oil-lubricated reducers present different packaging questions. A continuous annulus can obstruct a route that the original assembly leaves open. Describe the intended lubricant distribution around the carrier and identify any drainage or circulation opening that must remain unobstructed. The customer determines the lubrication requirement; the molded distance piece is then designed to preserve that route without introducing loose debris or unintended rubbing points.
During a trial build, record the assembled end float of the relevant planetary stage using the gearbox designer's procedure. Measuring only the loose ring thickness cannot show the accumulated effect of carrier cheek dimensions, pin shoulders, thrust elements and housing closure. A small sample group can be marked by mold cavity so measurements remain associated with the actual pieces installed in the reducer. Any change to the spacer thickness is approved against the complete stage stack.
The drawing review can distinguish circularity of the pilot register from the angular location of the boss pattern. Contact lands can be checked individually when interruptions prevent a simple full-face measurement. For a discussion of defining these functional limits, see tolerances and part performance. Our CAD-to-production guide also describes preparation for a custom mold.
Planet Carrier Spacer Inquiry
To identify the required distance ring, send the planetary stage section, pilot diameter, axial spacing, boss pattern and expected batch quantity. Indicate whether the spacer runs with the carrier or remains fixed, and include the reducer lubricant and temperature envelope. SWKS can then review an acetal molding proposal and a sampling scope focused on that particular stage.
Welcome to send an inquiry for custom planetary carrier spacers. Contact Tianjin SWKS Technology & Development Co., Ltd. at amanda@tjswks.com or 0086-15222707659 with your reducer drawings and purchasing requirements.
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