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Motor Vehicle Transmission and Power Train Parts Manufacturing

NAICS 336350 · Transportation Equipment Manufacturing6 · SBA size standard: 1,500 employees

Manufacturers of motor vehicle transmissions, axles, drivelines, clutches, torque converters, gears and power train components produce to OEM schedules, aftermarket orders and repair kits. For a shop that machines gears, assembles torque converters and ships both bulk OEM lots and individual rebuild kits, the specialists turn purchase orders into production schedules, raw forgings and castings into work orders with inspection points, and finished parts into packaged kits with traceability paperwork. Blueprints, tolerances, heat-treat specs and PPAP documentation stay with the machinist and quality lead.

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What makes this business different

  • OEM production schedules that arrive with weekly or daily call-offs and require exact sequence delivery
  • Precision machining with tight tolerances on gears, splines and housings that must be verified at multiple stages
  • Traceability from raw material heat numbers through final assembly and shipment
  • PPAP, FAI and other customer-specific approval packages for new or revised parts
  • Mix of high-volume OEM runs and low-volume aftermarket rebuild kits on the same equipment
  • Inventory of forgings, castings, bearings, seals and fasteners with long lead times and minimum order quantities
  • Heat treat, plating and other outsourced processes that must be scheduled and tracked
  • Regulatory labeling, country-of-origin and hazardous material declarations on every shipment
  • Equipment maintenance, calibration and process validation records required for ongoing production approval

Specialist bots

  • a worker at a desk reviewing blueprints and purchase orders next to a computer showing a production schedule in a machine shop office

    Order Intake Specialist

    Convert every incoming OEM call-off or aftermarket order into a ready-to-schedule production task with all required specifications.

    Works in: Ambitious Tasks, Ambitious Docs, Email Buckets · Workflows: Customer order and schedule intake

    Automates

    • Reads purchase orders and schedule releases
    • Extracts part numbers, quantities, dates and special instructions
    • Checks material and capacity availability
    • Creates the production task and traveler template
    • Drafts order acknowledgment

    Stops for a person

    • Engineering reviews any drawing or tolerance changes
    • A person approves and sends all customer acknowledgments
  • a worker updating a scheduling board with cards showing part numbers and operation times in a machine shop office

    Production Scheduler

    Build and maintain the master production schedule that balances customer due dates with machine capacity and outside process gates.

    Works in: Process Optimizer, Ambitious Sheets · Workflows: Production scheduling and capacity planning

    Automates

    • Loads orders into the master schedule
    • Balances time across machining and assembly cells
    • Inserts heat-treat and inspection steps
    • Identifies bottlenecks and suggests alternate routings
    • Publishes the weekly shop schedule

    Stops for a person

    • The shop supervisor adjusts sequence for unexpected downtime
    • A person releases the final schedule to the floor
  • a worker in a stockroom comparing steel forgings and gear blanks against an inventory sheet on a clipboard

    Materials Planner

    Explode production schedules into precise raw material and purchased component requirements while maintaining minimum stock levels.

    Works in: Ambitious Sheets, Ambitious Tasks · Workflows: Raw material and component purchasing

    Automates

    • Calculates gross and net requirements from the bill of materials
    • Subtracts on-hand and on-order inventory
    • Generates purchase requisitions with lead-time offsets
    • Tracks supplier minimum order quantities
    • Monitors incoming material certifications

    Stops for a person

    • Purchasing places all orders and spends money
    • Engineering approves any material substitutions
  • a machinist reviewing a job traveler and measuring a freshly cut gear on a surface plate in a machine shop

    Work Order Coordinator

    Create travelers and track each job through machining, inspection and outside processes with full traceability.

    Works in: Ambitious Tasks, Ambitious Docs, Ambitious Sheets · Workflows: Work order creation and in-process tracking

    Automates

    • Generates operation travelers with inspection points
    • Assigns job and serial numbers
    • Logs cycle times and moves material to next step
    • Flags out-of-tolerance conditions for review

    Stops for a person

    • Machinists record measurements and sign off at each operation
    • Engineering reviews and approves any rework or deviations
  • a technician measuring gear tooth profile on a coordinate measuring machine while referencing a detailed blueprint

    Quality Documentation Specialist

    Assemble first-article, PPAP and traceability documentation packages from inspection data and material certifications.

    Works in: Ambitious Docs, Ambitious Sheets, Ambitious Tasks · Workflows: Quality inspection and PPAP documentation

    Automates

    • Compiles dimensional reports from CMM data
    • Populates PPAP forms with measured values
    • Gathers material and process certifications
    • Checks results against customer tolerance requirements
    • Prepares certificate of conformance templates

    Stops for a person

    • The quality manager reviews and signs every package before submission
    • A person confirms that all customer-specific requirements are met
  • a worker packing transmission gears, bearings and seals into a corrugated box on a workbench lined with bubble wrap and labels

    Kit and Ship Coordinator

    Assemble accurate rebuild kits or bulk shipments, generate all required labels and shipping documentation.

    Works in: Ambitious Tasks, Ambitious Docs, Ambitious Sheets · Workflows: Kitting, packaging and shipment

    Automates

    • Matches components to kit bills of materials
    • Generates barcode labels with lot and serial numbers
    • Creates packing slips and certificates of conformance
    • Prepares any required export or hazmat declarations
    • Creates the carrier pickup task

    Stops for a person

    • A person performs the final kit audit before sealing boxes
    • The shipping clerk verifies counts and signs the paperwork
  • a technician using a dial indicator to check runout on a large gear hobber during a scheduled maintenance inspection

    Maintenance and Compliance Tracker

    Keep all preventive maintenance, calibration and regulatory records current for machines, gauges and outside processes.

    Works in: Ambitious Tasks, Ambitious Sheets, Ambitious Docs · Workflows: Equipment maintenance and compliance tracking

    Automates

    • Generates PM checklists by machine and interval
    • Tracks calibration due dates for all inspection equipment
    • Logs coolant and filter service records
    • Warns before permit or reporting deadlines
    • Maintains records of outsourced process certifications

    Stops for a person

    • Technicians perform and sign off on all maintenance
    • The quality manager confirms which filings are required each period
    • A person reviews and files all third-party certifications

Workflows

Customer order and schedule intake

Starts when: Receipt of OEM call-off, aftermarket purchase order or repair kit request

  1. Parse the part numbers, quantities, required ship dates and any special markings
  2. Check against open capacity on the production line and raw material availability
  3. Create a production task with blueprint revision, tolerance stack and PPAP status
  4. Draft acknowledgment and request missing drawings or specifications
  5. Flag any upcoming engineering change orders that affect the part

Watch for: OEM call-offs can change daily and must be re-sequenced without delay; Aftermarket kits often require matching serial numbers or core returns

Production scheduling and capacity planning

Starts when: Weekly forecast update or new firm order

  1. Load all confirmed orders into the master schedule by part and operation
  2. Balance machine time on lathes, hobs, grinders and assembly cells
  3. Insert heat-treat, plating and inspection gates into the sequence
  4. Run the process optimizer to identify bottlenecks and suggest alternate routings
  5. Publish the weekly shop schedule and material call-offs

Watch for: Changeover time between gear families is significant and must be minimized; Certain machines run only night shifts due to power or noise limits

Raw material and component purchasing

Starts when: After schedule is frozen and monthly

  1. Explode the production schedule into raw forgings, castings, bearings and seals needed
  2. Subtract current inventory and on-order quantities
  3. Generate purchase requisitions by supplier with lead-time offsets
  4. Track minimum order quantities and blanket releases
  5. Monitor incoming material certifications and heat numbers

Watch for: Steel and aluminum forgings have long lead times; Cores for rebuild kits must be matched to specific part numbers

Work order creation and in-process tracking

Starts when: Release of next job to the floor

  1. Generate traveler with operation sequence, blueprint callouts and in-process inspection dimensions
  2. Assign unique job and serial numbers for traceability
  3. Record actual cycle times, scrap and rework at each machine
  4. Trigger material move to next operation or to heat treat
  5. Flag any out-of-tolerance conditions for engineering review

Watch for: Every critical dimension must be measured and logged before moving to next operation; Rework loops must be documented with root cause

Quality inspection and PPAP documentation

Starts when: Completion of first article or sample run and on a sampling cadence

  1. Pull dimensional, hardness and surface finish data from CMM and gauges
  2. Compile FAI, PPAP or customer-specific approval packages
  3. Compare results against the approved blueprint and tolerance stack-up
  4. Generate material and process certification summaries
  5. Release only lots that pass all checkpoints to packaging

Watch for: Certain customers require full PPAP submission before production begins; Traceability records must survive for safety-critical parts

Kitting, packaging and shipment

Starts when: Completion of final inspection or on OEM ship date

  1. Pull finished components and match to rebuild kits or bulk orders
  2. Assemble kits with correct bearings, seals, gaskets and instructions
  3. Apply labels with part number, serial, lot, country of origin and barcode
  4. Generate packing slip, certificate of conformance and any hazmat declarations
  5. Create shipping task and notify carrier

Watch for: Export shipments require additional documentation and wood packaging statements; OEM containers must be returned and tracked

Equipment maintenance and compliance tracking

Starts when: Scheduled maintenance interval or regulatory due date

  1. Generate preventive maintenance checklists for each machine and fixture
  2. Track calibration due dates for all gauges and test equipment
  3. Monitor coolant, oil and filter change records
  4. Flag upcoming permit, emissions or environmental reporting deadlines
  5. Maintain records of any outsourced heat-treat or plating certifications

Watch for: Machine capability studies must be repeated after major repairs; The quality manager confirms which regulatory filings apply each quarter

Bot templates for this industry

Source: U.S. Small Business Administration, Office of Size Standards, Table of Small Business Size Standards Matched to North American Industry Classification System Codes, version March 2023 (effective 2023-03-17, NAICS 2022). Size standards are shown for reference only.