EP-ADR 시리즈 직각 원형 플랜지 정밀 유성 기어박스 (EP-ADR047 ~ EP-ADR255)

그만큼 EP-ADR series right-angle round flange planetary gearbox is the product when a machine design requires both a circular self-centring flange interface and a 90-degree output direction change simultaneously. Where the EP-ABR right-angle series uses a square bolt-pattern flange for flat-plate mounting, EP-ADR uses a precision pilot-diameter circular flange that self-centres into housing bores — the interface geometry used by rotary tables, circular actuators, and bore-mount mechanisms. Both series are right-angle precision gearboxes; the difference is entirely in the output flange shape and the available gear ratio set.

EP-ADR inherits the ratio set of the EP-AD inline series — including the four non-standard two-stage ratios 21, 31, 61, and 91 that are exclusive to the EP-AD/EP-ADR product family. These ratios are absent from the EP-ABR square-flange right-angle series. For bore-mounted right-angle rotary table drives where the output speed must match one of these specific values from a standard motor input without a VFD, EP-ADR is the only product in the Korea Ever-Power precision range that delivers all three requirements simultaneously.

CNC 4th-Axis Rotary Tables — Bore-Mount Right-Angle at i=61

Korean 5-axis machining centre 4th-axis rotary tables with a side-entry motor configuration use a bore-mounted right-angle drive. The servo motor is positioned alongside the table column rather than behind the output axis — the EP-ADR right-angle output drives the table bore while the motor is perpendicular. At i=61 from 1,450 rpm, EP-ADR delivers 23.8 rpm table speed — the target for titanium and Inconel workpiece machining where neither the i=50 (29 rpm, too fast for surface speed control) nor i=70 (21 rpm, too slow for cycle time) available in other right-angle series meets the specification. The round flange pilots into the 4th-axis housing bore without a separate concentricity setup.

Welding Positioner Tables — Bore-Mount at i=21/31

Korean automated welding positioner tables require both circular bore mounting (the motor driving through the positioner housing side wall into a circular housing bore) and a precise rotational speed to synchronise weld bead deposition rate with torch travel. EP-ADR at i=21 (69 rpm) or i=31 (47 rpm) from a 1,450 rpm standard induction motor delivers the required speed without a VFD — eliminating the VFD purchase, programming, and cabinet space from each positioner station. In a facility with 20–40 welding cells, eliminating VFDs at each station produces significant cumulative savings. The P2 grade ≤5 arcmin is adequate for weld-fixture positioning repeatability. CV drive shafts available from Korea Ever-Power transmission accessories for tandem dual-drive positioner table configurations.

CNC Lathe Turrets — Right-Angle Bore Mount at i=31

Korean CNC lathe turret indexing mechanisms use a cylindrical housing bore at the turret body centre — the drive gearbox must pilot into this bore concentrically. The right-angle motor-to-turret direction change is required when the servo motor is mounted axially within the machine tool body, perpendicular to the turret rotation axis. EP-ADR110 at i=31 and P1 ≤3 arcmin delivers the 47 rpm turret indexing speed standard for Korean 2-axis turning centres, with bore concentricity guaranteed by the round circular pilot flange.

Semiconductor Wafer Stage — P0 ≤1 Arcmin at i=91

Korean semiconductor wafer tilt and theta stage positioning requires sub-arcminute precision at low angular velocity. EP-ADR064 P0 at i=91 delivers ≤1 arcmin backlash at the right-angle circular-flange output at ~16 rpm from a standard servo motor input — essential for optical alignment stages where angular error exceeds the process window tolerance. The round flange self-centres into the stage housing bore, maintaining concentricity through repeated maintenance cycles without re-alignment. The IP65 sealed housing meets cleanroom housekeeping requirements.

Agricultural Machinery — Right-Angle Bore Drive at i=31/61

Korean precision agriculture equipment with rotating seeder or fertiliser disc heads driven through a bore-mount right-angle mechanism uses EP-ADR to combine the circular bore interface of the disc head housing with a 90-degree direction change from a horizontally mounted servo motor. The i=31 and i=61 ratios deliver the disc rotation rates required for variable-rate seeding applications, and the round flange ensures the disc head remains concentric with the drive axis through field vibration and thermal cycles. Integration with agricultural bevel gearboxes for multi-row seeder configurations distributes the EP-ADR output across multiple seeder heads.

Vertical Column Drives — Bore-Mount Z-Axis with Worm Holding

Korean gantry and column-type automation systems where the Z-axis servo motor is mounted horizontally and drives a vertical lead screw through a bore-mounted coupling use EP-ADR to integrate the direction change and the bore-mount interface in one unit. For vertical axes where gravity load holding on power-off is required, pairing EP-ADR with a downstream self-locking worm reducer provides the holding function without an electromagnetic brake — with the EP-ADR round flange ensuring the worm stage input concentricity is maintained.

• ✔Round flange pilot diameter CMM-verified to H6/H7 fit tolerance on every frame
• ✔Backlash P0/P1/P2 verified at right-angle output shaft — bevel contribution included, certified per unit
• ✔Gear ratio accuracy of 21/31/61/91 confirmed by output speed measurement — non-standard values verified
• ✔IP65 ingress test per IEC 60529 on every unit — single housing seals both planetary and bevel stages
• ✔Material certificate and dimensional drawing with every delivery

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EP-ADR110 P1, i=61 for a side-entry 4th-axis for our Ti-6Al-4V machining line. Both previous right-angle suppliers offered only i=50 (29 rpm, too fast) and i=70 (21 rpm, too slow) for the 1,450 rpm motor. The i=61 from EP-ADR gives 23.8 rpm — exactly our surface speed target. The round flange pilots into our 112H7 table bore. Zero dial indicator setup, same as our existing EP-AD inline units. I confirmed with the Korea Ever-Power team that i=61 is not achievable by combining 4/5/7/10 — it is a unique configuration. We have now deployed this on 14 machining centres. 20 months, no issues.

EP-ADR110 P2, i=21 for the rotation drive on 32 welding positioner tables — bore-mount right-angle into the positioner side housing, 1,500 rpm direct online induction motor. Target: 71 rpm table speed for our weld bead deposition calculation. i=20 gave 75 rpm (accumulation speed too high, bead width inconsistent). i=25 gave 60 rpm (too slow for cycle time). The i=21 ratio gives 71.4 rpm — within 0.6% of our target, no VFD needed on any of the 32 stations. The round flange self-centred into our 112H7 positioner bore in every installation without any eccentricity correction. Korea Ever-Power confirmed the i=21 is catalogue-standard for EP-ADR, not a special order.

EP-ADR064 P0, i=91 for a wafer tilt-stage axis. Required ≤1 arcmin at the right-angle bore-mount output, 65H6 housing bore, horizontal motor orientation. No other supplier's right-angle round-flange series offered P0 at i=91 in a 64 mm body diameter. EP-ADR was the only one. The self-centring round flange into our 65H6 bore maintained concentricity through 18 months of thermal cycling in the process chamber environment — no backlash drift beyond the commissioning measurement. Korea Ever-Power provided the bore fit dimensional confirmation in Korean within the same working day.

Worm Gear Reducers

For vertical EP-ADR right-angle bore-mount installations where gravity load holding is required on power-off — vertical column drives, vertical rotary indexers, and Z-axis elevator systems — a self-locking worm gear reducer downstream of EP-ADR holds the load at any position without an electromagnetic brake, maintaining concentric alignment at the EP-ADR round-flange bore interface.

CV Joint Drive Shafts

For dual-drive bore-mount configurations — tandem welding positioner tables, dual-motor rotary tables with two EP-ADR units on opposite sides — precision CV drive shafts connect the EP-ADR outputs to the driven element, transmitting high torque through any angular and parallel offset while maintaining the bore concentric alignment of the round-flange installation at each gearbox.

Agricultural Gearboxes

For Korean precision agriculture seeder and fertiliser disc bore-mount right-angle drive systems, downstream bevel and spiral-bevel agricultural gearboxes distribute the EP-ADR output to multiple working heads. The i=31 and i=61 ratios of EP-ADR are particularly matched to seeder disc rotation rates; agricultural bevel stages extend the single-output EP-ADR to multi-row configurations.

큐I need a right-angle round-flange gearbox at ratio i=28. Can EP-ADR supply this?

No — i=28 is not in the EP-ADR two-stage ratio set. The available EP-ADR two-stage values are 16, 20, 21, 25, 31, 35, 40, 50, 61, 70, 91, and 100. Ratio 28 is available in EP-ABR (which has the complete 17-value set including i=28), but EP-ABR has a square flange, not a round circular flange. If a round circular flange with i=28 right-angle output is specifically required, contact Korea Ever-Power — a special configuration may be available for project volumes, but it is not a standard catalogue offering.

큐Are the EP-ADR and EP-AD round flanges the same dimensions? Can I substitute one for the other?

At the same frame number, the EP-ADR and EP-AD circular pilot-diameter and bolt-circle dimensions are the same — the round flange geometry is consistent across the AD family (inline and right-angle). You can substitute EP-ADR for EP-AD at the same frame number without changing the output interface on the driven component side. However, the gearbox body envelope and motor input axis orientation are completely different: EP-AD is coaxial (motor and output on the same axis), while EP-ADR has the motor perpendicular to the output. The machine design must accommodate the different motor position.

큐Why is there no EP-ADR090 frame?

The EP-ADR frame range is 047, 064, 110, 140, 200, and 255 — the 090 frame present in EP-AD (inline) is not available in EP-ADR. This is a product catalogue limitation of the EP-ADR series, not a specification constraint. If your application requires a body size between ADR064 and ADR110, the options are: use ADR110 (next available frame, may be slightly oversized) or use EP-AD090 inline if a right-angle direction change is not strictly required. Confirm with Korea Ever-Power whether a 090 mm body right-angle round-flange unit is available outside the standard catalogue range for your application volume.

큐Is the BMEMB-series EP-BADR equivalent to EP-ADR for cost comparison?

그만큼 EP-BADR right-angle round flange planetary gearbox is the BMEMB-series right-angle round-flange product — positioned as a cost alternative for applications that do not require the Apex Dynamics precision specification of EP-ADR. The output flange dimensions are compatible at the same frame number, enabling substitution without mechanical redesign. However, EP-BADR does not carry the non-standard ratios 21/31/61/91 of EP-ADR; if these ratios are part of the requirement, EP-ADR is the correct product and EP-BADR cannot substitute.

큐Is the right-angle bevel stage backlash included in the P0/P1/P2 specification?

Yes — the P0 ≤1 arcmin, P1 ≤3 arcmin, and P2 ≤5 arcmin single-stage backlash values of EP-ADR are the total measured backlash at the right-angle circular-flange output shaft, with the bevel direction-change stage contribution already included in the measurement. There is no additional backlash term to add from the bevel stage. This is the same approach as EP-ABR — the catalogued backlash specification is the guaranteed value at the machine output, regardless of the internal stage architecture.