- Global consulting network
- Drivetrain engineering professionals
- Design, analyze, manufacture, test
- Clients matched to consultants
- Advanced matching algorithms
- Manage NDA, RFQ, and proposals
- Encrypted storage of all documents
- Safely authorize document sharing
- Rate consultants based on service
- Pay only for successful matching
Finding a good consultant is hard. We make it easy.
Secure upload of non-disclosure agreement, request for quote, and project data
Algorithms scan your submission to match the best consultants and notify them
Matched consultants elect to participate, write proposals, and upload for review
Review consultant proposals, accept a proposal, and issue Purchase Order
Our network of engineering consultants has expertise in spur gears, helical gears, planetary gears, bevel gears, hypoid gears, rolling element bearings, journal bearings, plain bearings, induction motors, permanent magnet motors, switched reluctance motors, shafts, splines, clutches, pumps, drivetrain systems, EV propulsion systems, gearbox structures, and more. Engineering services are offered for CAD modeling, simulation, design, testing, inspections, prototyping, and manufacturing with solutions for durability, efficiency, dynamics, noise, thermal, and controls. Read below to learn more.
Concept and detailed design with CAD and drawings
- Advanced 3D drivetrain concept designs using standards-based analysis software.
- Initial geartrain design requirements for durability, efficiency, dynamics, and noise.
- Detailed design and product specifications for gears, bearings, electric motors, shafts, splines, and clutches.
- Creation of detailed CAD models and technical drawings with tolerancing.
- Creation of drawings for prototypes and mass production, following GD&T best practices.
- Identification of critical-to-quality (CTQ) dimensions for controlling misalignments.
- Thermal growth effects on geometric dimensions, with consideration of tolerances.
- Contributor or lead for selection of seals, housing design, and other practical design aspects.
- Drive unit housing design with CAD and FE models, using predicted bearing forces.
- Gear mesh stiffness and bearing stiffness matrices for dynamic analyses.
- Technical review of drivetrain concepts by industry experts.
- Design-for-manufacturing for gears, electric motors, shafts, clutches, and splines.
- Cost and weight estimates on selected concepts.
- Gearbox design for serviceability requirements.
- Reverse engineering services.
Predictive simulations with Computed Aided Engineering
- CAE software tools for solving a multitude of physics-based problems.
- 1D multibody dynamics of drivetrain concepts to ensure vehicle performance requirements are met.
- 3D multibody dynamics of detailed transient analyses such as clunk, vehicle shuffling, and other phenomena.
- Computation fluid dynamics (CFD) including fluid flow for lubrication and cooling, thermal analysis using advanced gear/bearing heat generation codes, cooling requirements (cooler vs air convection), ventilation, oil fill level requirements, incline/decline analysis of lubricant behavior.
- CFD for housing internal geometry optimization studies for optimized mesh flow.
- Structural fatigue analysis of the gearbox housing as bolted/coupled to the electric motor housing, investigating durability/fatigue due to cyclic loading from normal operation, thermal cycling, and vibrational stress cycling. Also models the influence of elastomer mounting brackets.
- Dynamic analysis of the assembled electric motor, gearbox, and half-shaft drivetrain, ensuring bending and torsional modes are well managed in critical operating ranges. Includes analysis open differential bounce modes.
- Electric motor analyses for electromagnetics, thermal, structural, dynamics, and NVH.
- Electric motor 1D and 3D thermal models for concept and detailed design studies.
- Design and analysis of hypoid, spiral bevel, and straight bevel gears.
- Reverse engineering to predict durability and efficiency of gears, motors, and bearings.
- Load dependent gear mesh and bearing stiffness predictions, with global and local influences.
- Predict the influence of gear blank lightening on gear contact patterns.
- High speed rotordynamics and time-varying gear contact analysis.
- Gear blank compliance tuning to optimize dynamic mesh forces.
Systems and integration with software and hardware
- Software and hardware solutions to simulate, test, teardown, and validate drive units systems.
- Drivetrain system deflections for integrated e-motor, gearbox, differential, half shafts, and wheel/hubs.
- Gearbox gear whine and e-motor whine, for both vibration (structure borne) and radiated noise (airborne).
- Optimization of housing for stress reduction and improved noise radiation from gear and motor whine.
- Predictions of drivetrain system efficiency with sensitivity studies for improvement.
- Monte Carlo studies to understand manufacturing tolerances for durability, efficiency, and NVH.
- Teardown, measure, and simulate gears for LTCA, transmission error, shuttling forces, friction force.
- Inspection and analysis of the actual off-the-shelf bearings to be used.
- Inspection of hypoid, spiral bevel, and straight bevel gears.
- Gearbox teardown studies, including inspection and measurement of gear and bearing geometry.
- Electric motor testing capabilities, complete with rig operators, data acquisition, post-processing, and reporting.
- Turnkey solutions for electric motor testing, including planning, facility design, and production requirements.
- Testing services with project management, instrumentation, data acquisition and post processing.
- Bearing component fatigue testing and geometry inspection services.
- Durability, efficiency, and NVH target setting with industry experts.
- Full service testing of prototype and production gearboxes and electric motors.
- Full vehicle and drivetrain benchmarking.
Manufacturing and assembly for prototypes and production
- Manufacturing and assembly of the prototype and production gearboxes.
- Cost estimates based on technical drawing requirements and volume.
- Build to print services, including optimization of supply chain costs.
- Prototype fabrication with cut gears, machined housings, and bearing package.
- Production line trials and benchmarking for electric motor assemblies.
- Quality Operating System with focus on CTQ parameters relevant to drivetrain performance.
- Provisions for superfinishing, grind polishing, or grinding gears for improved efficiency and durability.
- Provisions for high efficiency bearing options.
Material science and engineered steelmaking processes
- Material characterization of gears and bearings, including microstructure, morphology, case/core transition, inclusions, residual stress, surface finish, hardness, and hardness depth.
- Predictions of fatigue life of gears and bearings using material science with CAE.
- Efficiency of gears and bearings using material science surface finish with CAE.
- Investigations of prototype and production gears with varying manufacturing processes.
- Investigations of surface finish on life, including superfinishing, grind polish, etc.
- Root Cause Analysis (RCA) to understand mechanisms of failure in drivetrain components.
- Engineering review and design of primary steelmaking processes and specifications.
- Alloy selection with considerations for strength, durability, weight, cost.
- Clean steel specifications and practices, reviewing mill procedures to ensure ASTM/AMS/SAE standards.
- Engineering review and design of integrated steel processing.
- Forging with temperature regulation, lapsing and cracking, decarburizations, etc.
- Surface thermal treatments for carburization, nitriding, carbonitriding, etc.
- Thermal processing with induction, vacuum heat treating, secondary hardening, cryogenics, etc.
- Mechanical surface treatments with shot peening, laser peening, cavitation peening, etc.
- Corrosion enhancement, increased hardness, and improved life through optimal steel production.
- Extensive experience with metallurgical behavior of key gear and bearing steels.
Getting started is simple.
FAQ - Clients
- How do I join as a client?
- Sign up with a Drivetrain Hub Community membership, it's free.
- How much does it cost for clients?
- Your first RFQ is free. Subsequent RFQs incur a $99 fee to ensure serious inquiries. If no matches are received, then no fee applies.
- How many consultants are matched to an RFQ?
- Up to three (3) consultants are matched to each RFQ. Fewer matches may be received.
- What if an RFQ does not receive any matches?
- If an RFQ demands services unavailable in our consultant network, consultants will not be matched to it. In this event, there is no fee for the RFQ.
- What if I need to hire multiple consultants?
- If a project requires widely varying expertise, e.g. design vs testing, we recommend submitting a separate RFQ for each well-defined area of expertise. Strong project classification will ensure the best consultants are matched.
- What if a client wants to avoid certain consultants?
- Matched consultants cannot see a client's identity, statement of work, or NDA until the client authorizes it. Additionally, clients can email us to request these constraints.
- What if a client has a bad experience with a consultant?
- We work hard to qualify our consultants and only match consultants with a high computed compatibility. We also use a transparent 5-star review system for clients to rank consultants. Reviews of a consultant are visible to any matched clients.
- What if a project contains sensitive information?
- Each project request must include a client NDA, plus consultants can upload NDAs. All project data uploads to encrypted storage. Strict authorization rules guarantee that only consultants authorized by the client can view project documents. No project documents are available at public URLs.
FAQ - Consultants
- How do I join as a consultant?
- First, sign up for a Drivetrain Hub Community membership, it's free. Then, submit a consultant application.
- How much does it cost for consultants?
- Consultant application fee is $199 without a coupon code. Project opportunities lost do not require payment. Project opportunities won require payment based on project total price (PTP). Payment of $199 is required for projects less than $7k PTP. Payment of 3% PTP is required for projects less than $50k. Payment of $1499 is required for projects greater than $50k. An invoice is emailed to the consultant for payment within 14 days of winning project.
- How are consultants classified and ranked?
- Consultant profiles require data that allows us classify each consultant and rank their services against project requests. Profile data includes descriptive text, company size, hourly rate, competency rankings, brochures, and more. Project requests are similarly classified and cross-referenced against our database of consultants.
- What happens when a consultant receives a match?
- The first step when receiving a match is to review the anonymous project data and elect project participation. If a consultant is too busy or does not like the match, they can elect to not participate. If participating, the client must authorize access to project documents, and consultants proceed to write proposals.
- What if a consultant does not want a project?
- Consultants can elect to not participate in a matched project request.
- How are consultants promoted on the platform?
- We work closely with consultants to ensure their profile is optimized to provide them with the best matches. Our founder and partners are experienced and well-connected in the drivetrain industry, providing abundant access to consulting opportunities. We continually develop marketing strategies to find new opportunities and promote our network of consultants.