{"id":854,"date":"2026-06-17T05:28:30","date_gmt":"2026-06-17T05:28:30","guid":{"rendered":"https:\/\/planetary-gearboxes.com\/?post_type=product&p=854"},"modified":"2026-06-17T06:34:50","modified_gmt":"2026-06-17T06:34:50","slug":"zr01-slewing-drive-planetary-gearbox","status":"publish","type":"product","link":"https:\/\/planetary-gearboxes.com\/sr\/\u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\/zr01-slewing-drive-planetary-gearbox\/","title":{"rendered":"ZR01 Slewing Drive Planetary Gearbox \u2014 Right-Angle Bevel-Planetary"},"content":{"rendered":"
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EP-ZR01 Right-Angle Slewing Drive Planetary Gearbox<\/h2>\n
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\"ZR01<\/p>\n

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750<\/div>\n
Rated Torque (Nm)<\/div>\n<\/div>\n
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1,500<\/div>\n
Peak Torque (Nm)<\/div>\n<\/div>\n
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IP67<\/div>\n
Seal Rating<\/div>\n<\/div>\n
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DIN 5-6<\/div>\n
Gear Accuracy<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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The EP-ZR01 slewing drive planetary gearbox<\/strong> is the compact entry model of the Korea Ever-Power ZR slewing drive series<\/a>, engineered for applications that demand precise rotational positioning under sustained outdoor exposure. Unlike conventional worm-gear slewing drives<\/a> that sacrifice 25-60% of input power as friction heat, the ZR01 bevel-planetary architecture maintains 89-93% mechanical efficiency across the full 7.69 to 114.88 ratio range, directly reducing motor sizing and energy consumption in solar tracker and light-duty crane installations.<\/p>\n

The right-angle input configuration accepts both hydraulic motors (axial piston, orbit) and IEC electric motors, while the output supports spline shaft, flanged, or solid shaft arrangements with optional spring-applied fail-safe brakes for vertical-load holding applications. Two-stage and three-stage planetary reductions cover ratios from 7.69 to 114.88 within a single frame size, eliminating the need to stock multiple gearbox families for different speed reduction requirements.<\/p>\n

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Right-Angle Bevel Input<\/div>\n
89-93% efficiency versus 40-75% in worm-gear slewing drives.<\/div>\n<\/div>\n
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IP67 FKM Sealed<\/div>\n
Multi-lip fluoroelastomer seals withstand mud, high-pressure wash, and UV cycling.<\/div>\n<\/div>\n
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-40 to +80 deg C Range<\/div>\n
PAO synthetic oil fill rated for arctic to desert operation without seasonal fluid changes.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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ZR01 Technical Parameters<\/h2>\n

All torque values at N2 x h = 100,000 operating hours. Thermal power ratings given for fan-cooled (F) and natural convection (M) conditions. Maximum input speed is the mechanical limit regardless of ratio.<\/p>\n

2-Stage Configuration \u2014 ZR01-2<\/h3>\n
\n\n\n\n\n\n\n\n\n
\u041f\u043e\u0437\u043e\u0440\u043d\u0438\u0446\u0430<\/th>\n\u0422\u0438\u043f<\/th>\n\u041e\u0434\u043d\u043e\u0441<\/th>\nCont. Torque (Nm)<\/th>\nMax. Torque (Nm)<\/th>\nMax RPM<\/th>\nPt (F) kW<\/th>\nPt (M) kW<\/th>\n<\/tr>\n<\/thead>\n
2-\u0441\u0442\u0435\u043f\u0435\u043d\u0438<\/td>\nZR01-2<\/td>\n7.69<\/td>\n750<\/td>\n1,500<\/td>\n3,500<\/td>\n4.5<\/td>\n5.5<\/td>\n<\/tr>\n
9.41<\/td>\n750<\/td>\n1,500<\/td>\n3,500<\/td>\n4.5<\/td>\n5.5<\/td>\n<\/tr>\n
12.75<\/td>\n550<\/td>\n1,200<\/td>\n3,500<\/td>\n4.5<\/td>\n5.5<\/td>\n<\/tr>\n
15.93<\/td>\n410<\/td>\n950<\/td>\n3,500<\/td>\n4.5<\/td>\n5.5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

3-Stage Configuration \u2014 ZR01-3<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u041f\u043e\u0437\u043e\u0440\u043d\u0438\u0446\u0430<\/th>\n\u0422\u0438\u043f<\/th>\n\u041e\u0434\u043d\u043e\u0441<\/th>\nCont. Torque (Nm)<\/th>\nMax. Torque (Nm)<\/th>\nMax RPM<\/th>\nPt (F) kW<\/th>\nPt (M) kW<\/th>\n<\/tr>\n<\/thead>\n
3-\u0441\u0442\u0435\u043f\u0435\u043d\u0438<\/td>\nZR01-3<\/td>\n26.76<\/td>\n750<\/td>\n1,500<\/td>\n3,500<\/td>\n3.5<\/td>\n4.5<\/td>\n<\/tr>\n
32.76<\/td>\n750<\/td>\n1,500<\/td>\n3,500<\/td>\n3.5<\/td>\n4.5<\/td>\n<\/tr>\n
40.11<\/td>\n750<\/td>\n1,500<\/td>\n3,500<\/td>\n3.5<\/td>\n4.5<\/td>\n<\/tr>\n
44.38<\/td>\n750<\/td>\n1,500<\/td>\n3,500<\/td>\n3.5<\/td>\n4.5<\/td>\n<\/tr>\n
54.32<\/td>\n550<\/td>\n1,200<\/td>\n3,500<\/td>\n3.5<\/td>\n4.5<\/td>\n<\/tr>\n
67.88<\/td>\n550<\/td>\n1,200<\/td>\n3,500<\/td>\n3.5<\/td>\n4.5<\/td>\n<\/tr>\n
73.58<\/td>\n550<\/td>\n1,200<\/td>\n3,500<\/td>\n3.5<\/td>\n4.5<\/td>\n<\/tr>\n
91.94<\/td>\n410<\/td>\n950<\/td>\n3,500<\/td>\n3.5<\/td>\n4.5<\/td>\n<\/tr>\n
114.88<\/td>\n410<\/td>\n950<\/td>\n3,500<\/td>\n3.5<\/td>\n4.5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
Torque De-Rating at Higher Ratios: <\/span>
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\nContinuous torque reduces at ratios above 12.75 (2-stage) and 54.32 (3-stage) due to increased internal gear mesh losses at higher reduction. For continuous-duty applications at these ratios, size the next larger frame (ZR02, 1,100 Nm rated) to maintain full thermal margin.
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Inside the ZR01 \u2014 Bevel-Planetary Drivetrain Architecture<\/h2>\n
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The ZR01 is not a gearbox with a bevel stage bolted onto a standard inline planetary unit. The housing is cast as a single ductile iron (QT600-3) monobloc that integrates the bevel chamber and planetary stages into one rigid structure, eliminating the flange joint that would otherwise introduce compliance and misalignment between stages under heavy radial loading from output pinion engagement with slewing ring gears.<\/p>\n

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B<\/span><\/p>\n

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Hypoid Bevel Input Stage<\/strong><\/p>\n

Case-hardened 20CrMnTiH spiral bevel pair with ground tooth profiles to DIN 5. The hypoid offset provides higher contact ratio than straight or Zerol bevel gears, enabling smoother torque transmission and lower mesh noise at the input speeds typical of IEC motor direct coupling (1,450-2,850 rpm).<\/p>\n<\/div>\n<\/div>\n

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\u041f<\/span><\/p>\n

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3-Planet Helical Output Stages<\/strong><\/p>\n

Each planetary stage uses three planet gears meshing simultaneously, distributing the transmitted torque across three load paths. The helical tooth profile adds axial overlap that eliminates the torque pulsation characteristic of spur-planet designs, critical for smooth solar tracker panel movement and jitter-free crane positioning.<\/p>\n<\/div>\n<\/div>\n

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S<\/span><\/p>\n

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Multi-Lip FKM Seal System<\/strong><\/p>\n

Double-lip fluoroelastomer (FKM) shaft seals with a labyrinth dust exclusion stage achieve IP67 without the maintenance burden of pressurised seal systems. FKM withstands continuous temperatures to 160 deg C and resists UV degradation that destroys NBR seals within 18-24 months in solar field installations.<\/p>\n<\/div>\n<\/div>\n

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O<\/span><\/p>\n

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Heavy-Series Tapered Roller Output Bearings<\/strong><\/p>\n

The output shaft runs in preloaded tapered roller bearings that absorb the combined radial and thrust loads generated when the output pinion engages the slewing ring gear. Preload adjustment maintains zero bearing clearance throughout the rated service life, preventing backlash growth that would otherwise accumulate over years of cyclic operation.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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ZR01 Material Specification<\/h3>\n