ชุดเกียร์ทดรอบแบบเฟืองดาวเคราะห์ความแม่นยำสูง มุมฉาก ซีรี่ส์ BADR — หน้าแปลนกลม (EP-BADR047 ถึง EP-BADR255)

The EP-BADR series high-precision planetary gearbox combines three capabilities in a single unit: a 90° right-angle output via a precision bevel input stage, a round circular-flange output for cylindrical bore mounting, and the widest gear ratio range in the Korea Ever-Power right-angle product family — single-stage to 20:1 and two-stage to 200:1. It is the natural choice when a machine design requires all three of these properties simultaneously: right-angle torque redirection, circular bolt-circle mounting, and high reduction ratio.

Across all seven frame sizes from EP-BADR047 through EP-BADR255, the full P1 backlash specification of ≤3 arcmin single-stage and ≤5 arcmin two-stage is maintained at the output shaft — including the bevel stage contribution. Combined unit efficiency reaches ≥93% single-stage and ≥90% two-stage, far exceeding worm gear alternatives at equivalent ratios. Full-body hardened alloy steel gears, ANSYS-validated tooth corrections, and an integrated one-piece planet carrier and output shaft deliver the long-term backlash stability that Korean AGV, cobot, and automation equipment manufacturers demand.

Round-Column Stacker Crane Mast

Round-section mast stacker cranes route the horizontal travel drive inside the mast tube. This high-precision planetary gearbox fits the circular mast tube bore directly while the 90° output drives the travel rack from a motor mounted axially along the mast — a layout impossible with square-flange right-angle units without an external bracket that increases the mast cross-section and reduces the racking lane density.

High-Ratio Slow Conveyor Right-Angle Drive

Conveyor belt drives requiring 3–15 rpm output from a servo motor often need both a right-angle output to run the drive shaft perpendicular to the motor, and a high reduction ratio. EP-BADR at 140:1–200:1 two-stage covers both requirements in one sealed right-angle planetary gear reducer — eliminating the chain or belt intermediate stage that conventional right-angle units at 100:1 maximum would require to reach these output speeds.

Medical Imaging Gantry Rotation

CT scanner and radiation therapy gantry rotation drives require compact, vibration-free, sealed gear reducers that integrate into circular gantry ring bores. EP-BADR's round flange geometry and 90° output match this architecture directly — the circular bolt pattern concentric to the output shaft integrates with the gantry ring bearing interface without the eccentric offset that square-flange right-angle units introduce.

• ✔Total backlash measured per unit — P1/P2 verified (bevel + planetary)
• ✔Right-angle perpendicularity and round flange concentricity — both CMM-verified
• ✔Full-load torque test at 110% rated (bevel + planetary stages)
• ✔Noise at 3,000 rpm — <65 dB(A) confirmed
• ✔Material cert + dimensional report shipped with every unit

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EP-BADR090 at i=20 single-stage for the steering pivot of our 800 kg class cylindrical AGV drive module. The round flange slid straight into our 96 mm bore housing — no bracket, no offset. Saved 48 mm of module height vs our previous worm-gear-plus-square-adapter design. The dual CMM certificate (perpendicularity + concentricity) saved us two weeks of first-article measurement work. 18 months in service, 34 modules deployed, zero steering actuator faults.

EP-BADR064 at i=14 single-stage for a cross-axis cable-pass-through wrist joint on our collaborative robot. The round flange allowed our 32 mm cable bundle to pass through the bolt-circle centre while the right-angle output kept the forearm compact. At i=14 single-stage we gained 26 mm axial length vs an equivalent two-stage unit — enough to meet our ISO/TS 15066 arm profile requirement without redesigning the forearm link. P1 backlash certificate passed our joint accuracy test protocol first run.

EP-BADR140 at 100:1 two-stage for single-axis solar tracker column drives on a 5 MW utility installation in Jeju. Round flange bolted directly to our 168 mm steel pipe column bore — zero transition hardware. Right-angle layout kept the servo motor horizontal and protected from direct rain exposure inside the column. 2 years, 150 tracker units across Jeju wind-zone installations, no actuator failures. Sealed lube confirmed zero maintenance over entire period as specified.

EP-BADR255 at 200:1 two-stage for a slow pharmaceutical conveyor — needed 12 rpm output from a 2,400 rpm servo at right angle to the drive shaft, mounted into a round-bore conveyor frame end plate. Single BADR255 unit replaced a chain-drive plus square-flange gearbox arrangement that required 180 mm more frame width. Efficiency improvement reduced motor sizing from 5.5 kW to 3.7 kW. Lead time for 200:1 was 5 weeks — communicated clearly upfront, project planning adjusted accordingly.

คิวWhat exactly does "CMM-verified perpendicularity AND concentricity" mean for EP-BADR?

Two separate measurements are performed on every EP-BADR right-angle planetary gearbox unit. Perpendicularity: the angular deviation of the output shaft axis from 90° to the input shaft axis is measured by CMM — confirming the right-angle bevel stage is within specification. Concentricity: the circular bolt-circle of the round output flange is measured for concentricity to the output shaft axis — confirming the flange will centre correctly in a cylindrical bore housing. Both values appear on the shipping certificate. These two measurements together are what eliminate first-article alignment iterations in AGV module and cobot joint assembly.

คิวDoes the 200:1 two-stage still maintain P1 ≤5 arcmin backlash at the output shaft?

Yes — two-stage P1 backlash of ≤5 arcmin is the total measured output shaft backlash, including bevel stage and planetary stage contributions, and applies at 200:1 as at any other two-stage ratio. The ≤5 arcmin output-shaft backlash corresponds to an extremely small motor-shaft angular movement at 200:1 (≤5 arcmin ÷ 200 = ≤0.025 arcmin input), making it negligible in practice. Confirm P1 grade at order time for 200:1 configurations as these are non-stock items built to order.

คิวCan EP-BADR be used in outdoor environments — solar trackers and AGVs in rain exposure?

Standard EP-BADR units have sealed lubrication but are rated for indoor use (IP class subject to confirmation per frame size). For outdoor solar tracker and AGV applications, Korea Ever-Power can supply EP-BADR with enhanced sealing appropriate for outdoor installation. Specify outdoor duty at time of order. The sealed lubrication itself is inherently protected — the additional sealing protects the input shaft bore from water ingress on the bevel stage side. Contact our Korean engineering team for outdoor IP rating confirmation for your specific frame and mounting orientation.

คิวIs the motor adapter plate at the input end the same as EP-BAD at the same frame size?

Yes. EP-BADR and EP-BAD share the same input adapter plate geometry at identical frame sizes and input flange types (T1/T2). The servo motor attachment end is identical between the two series — only the output end geometry differs (round vs square flange). If your machine design changes from EP-BAD to EP-BADR or vice versa, the servo motor and adapter plate remain unchanged; only the output-side mounting hardware needs updating.

คิวWhat is the lead time for i=140 and i=200 configurations, and how should I plan for production?

EP-BADR at i=140 and i=200 are built-to-order configurations with 4–6 week lead time from order confirmation. For Korean production lines, Korea Ever-Power recommends placing orders 6–8 weeks before the build date to absorb scheduling variation. Standard ratios (i=10, i=20, i=50 in BADR090) are in Korean warehouse stock and available same-week. If your project timeline is tight, Korea Ever-Power's Korean sales team can confirm current production capacity and offer scheduled delivery confirmation at the order stage.