What These Gimbal Parts Are and the Exact Numbers That Matter These are CNC machined drone gimbal parts that hold your camera stabilization system together—arms, motor mounts, dampener brackets, and
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What These Gimbal Parts Are and the Exact Numbers That Matter These are CNC machined drone gimbal parts that hold your camera stabilization system together—arms, motor mounts, dampener brackets, and
These are CNC machined drone gimbal parts that hold your camera stabilization system together—arms, motor mounts, dampener brackets, and center plates. We hold positional tolerance to ±5µm (0.005 mm) and runout to 3µm on all rotating mating faces. That means your gimbal motors see zero eccentric load, which directly translates to sharper footage at 4K and 60fps. Lead time is 15 days for standard parts, 7 days for prototypes. Material hardness for our standard 7075-T6 parts is 150-160 HB, which resists bending even when a drone crashes at 40 km/h.
Most shops default to 6061-T6 because it is cheap. We do not. For gimbal arms that must hold a 500g camera payload without flexing, we recommend 7075-T6 aluminum. It has a yield strength of 503 MPa versus 276 MPa for 6061. That is 82% higher. The extra cost is roughly 15% per part, but you eliminate vibration-induced blur. If you are building a lightweight FPV gimbal under 150g total, we machine 6061-T6 to a wall thickness of 0.8 mm—that is possible because our 5-axis CNC mills hold the tolerance without chatter.
Runout is the killer of gimbal performance. If the motor shaft or bearing seat has more than 5µm runout, the camera micro-jitters at slow pans. We machine rotating parts between centers on a lathe, not in a chuck. That eliminates clamping distortion. Then we grind the bearing seats to a finish of Ra 0.4 µm. The result: a measured runout of 3µm on every shaft we ship. We have a CMM report for each batch that shows the actual runout value, not just a certificate that says "pass." If you want to see how we select the right tool for these tight features, read our CNC cutting tool selection guide—it explains why we use diamond-tipped inserts for the final pass on aluminum.
Gimbal motor mounts use M2, M2.5, and M3 threads. The problem: cross-threading a screw into a soft aluminum part strips it instantly. We fix that by cutting threads with a formed thread mill, not a tap. A thread mill compresses the metal grains, increasing thread strength by 20% compared to cut threads. We also add a 0.2 mm chamfer on every thread entry so screws slide in without crossthreading. For the six holes that mount the motor, we hold a true position of 10µm relative to the center bore. That ensures your motor sits perfectly perpendicular to the arm, which is critical for the IMU to calculate accurate stabilization angles.
You choose the finish based on where the drone flies. For indoor or light outdoor use, we offer clear anodize at Ra 0.8 µm—this is standard for gimbal arms because it resists scratches from handling. For desert or saltwater environments, we do hard anodize (Type III) at 40-50 µm thickness, hardness 350-400 HV. That coating stops sand erosion and salt corrosion completely. For parts that slide against each other, like dampener brackets, we offer electroless nickel plating at 25 µm. That gives a coefficient of friction of 0.4, so the dampener slides smoothly without stick-slip. Every finish is applied after machining, so the dimensions we quote are the final coated dimensions, not the pre-coat ones.
Every gimbal part goes through a 3-step inspection that takes 4 hours per batch. First, a Zeiss CMM measures 12 critical dimensions—the mounting hole positions, the bore diameters, and the face flatness—against your drawing. Second, an air gauge measures the bearing seat diameter to 1µm resolution because that is where runout lives. Third, a human inspector under a 10x microscope checks thread quality and edge break. We send you a PDF inspection report with the actual measured values, not a generic "pass" stamp. If you want to understand what our tolerances really mean on the bench, read our CNC machining tolerances guide—it shows how 5µm on a gimbal arm translates to 0.1° of camera angle error.
| Parameter | Specification |
|---|---|
| Materials | 6061-T6, 7075-T6, 5052-H32, Ti-6Al-4V (grade 5) |
| Standard part size | 5 mm to 300 mm length, 3 mm to 150 mm diameter |
| Wall thickness (minimum) | 0.8 mm in 6061, 1.0 mm in 7075 |
| Hardness (7075-T6) | 150-160 HB (Brinell) |
| Tolerance (standard) | ±5µm on bore and shaft, ±10µm on linear dimensions |
| Runout (bearing seats) | 3µm TIR (total indicated reading) |
| Surface finish (machined) | Ra 0.4 µm on bearing seats, Ra 0.8 µm on all other surfaces |
| Thread sizes | M1.6, M2, M2.5, M3, M4, M5 (formed threads) |
| Lead time | 15 days standard, 7 days prototype, 3 days rush (add 30%) |
| MOQ | No MOQ—order 1 piece or 10,000 pieces |
No MOQ—we machine a single prototype for your test bench or a full production run of 10,000 parts, and the per-piece price drops linearly with volume.
Send either a STEP or IGES file for the geometry, plus a PDF with critical tolerances and thread callouts—we will confirm manufacturability within 24 hours and suggest any changes.
We provide a CMM inspection report with actual measured values for every batch, and we keep a 3D scan of each part for 12 months for traceability.
Standard is 15 days, but we can ship prototype quantities in 7 days and rush orders in 3 days with a 30% surcharge—our factory in Dongguan runs CNC machines 24/7.
Send your STEP file or PDF drawing to sc@bquq.com, and we will reply with a firm quote within 12 hours—including per-piece price, tooling cost (if any), and delivery date. For urgent projects, message us on WhatsApp at +86 13713157787. We are a precision manufacturing factory in Dongguan, China, with 20 years of CNC machining experience for drones, cameras, and robotics. Your Cnc Machined Drone Gimbal Parts will be made in China, but they will meet or exceed the tolerances of any European or Japanese shop—at 30-40% lower cost. No MOQ, no hidden tooling charges on standard parts, and a free design-for-manufacturing review with every quote.
| Parameter | Capability |
|---|---|
| Materials | AL6061/7075, SUS303/304/316, 45# steel, T2 copper, H59 brass, POM, PEEK, nylon |
| Tolerance | ±0.005mm standard, ±0.003mm on request |
| Machines | 3/4/5-axis CNC, turn-mill, Swiss lathe |
| Surface | Anodizing, nickel, zinc, passivation, sandblast, polish |
| Size Range | Max 400 x 300 x 200 mm |
| Prototype | 72 hours, no MOQ on samples |
| Inspection | Full report per batch, CMM data on request |
