{"id":867,"date":"2026-06-17T05:59:13","date_gmt":"2026-06-17T05:59:13","guid":{"rendered":"https:\/\/planetary-gearboxes.com\/?post_type=product&p=867"},"modified":"2026-06-17T05:59:13","modified_gmt":"2026-06-17T05:59:13","slug":"zr02-slewing-drive-planetary-gearbox","status":"publish","type":"product","link":"https:\/\/planetary-gearboxes.com\/bg\/produkt\/zr02-slewing-drive-planetary-gearbox\/","title":{"rendered":"ZR02 Slewing Drive Planetary Gearbox \u2014 Right-Angle Bevel-Planetary, 2-3 Stage"},"content":{"rendered":"
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EP-ZR02 Compact Slewing Drive \u2014 47% More Torque Than the ZR01<\/h2>\n
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\"EP-ZR02<\/p>\n

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1,100<\/div>\n
Rated Nm<\/div>\n<\/div>\n
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2,400<\/div>\n
Peak Nm<\/div>\n<\/div>\n
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13<\/div>\n
\u0421\u044a\u043e\u0442\u043d\u043e\u0448\u0435\u043d\u0438\u044f<\/div>\n<\/div>\n
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IP67<\/div>\n
Sealed<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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The EP-ZR02<\/strong> shares the exact frame dimensions and ratio table with the ZR01 (7.69-114.88 across 2 and 3 stages) but delivers 47% more continuous torque: 1,100 Nm versus 750 Nm. This makes the ZR02 the logical step-up when a ZR01 application pushes beyond 80% of its rated capacity, or when an engineer wants a higher safety margin within the same installation envelope. The mechanical interfaces, mounting bolt pattern, and input\/output options are interchangeable between the two models \u2014 a ZR02 drops directly into a ZR01 mounting position without modification.<\/p>\n

This torque-to-envelope advantage makes the ZR02 the preferred choice for medium-format solar tracker systems<\/a> with panel areas of 80-120 m\u00b2, dual-axis antenna pedestals, packaging line rotary indexers, and industrial turntable positioners where the additional 350 Nm headroom over the ZR01 eliminates the need to de-rate for thermal or shock-load conditions.<\/p>\n

Same Frame as ZR01<\/span>
\nDIN 5-6<\/span>
\n2-3 Stages<\/span>
\n-40 to +80 deg C<\/span>
\n3,500 RPM<\/span><\/div>\n<\/div>\n<\/div>\n<\/section>\n

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ZR02 Technical Parameters \u2014 13 Ratio Configurations<\/h2>\n

Continuous torque at N2 x h = 100,000 hours. Torque de-rates at the highest 2-stage ratio (15.93) and the three highest 3-stage ratios (73.58+) due to increased mesh losses. All configurations share the same maximum input speed of 3,500 rpm and the same physical housing dimensions.<\/p>\n

2-Stage \u2014 ZR02**2 (4 Ratios)<\/h3>\n
\n\n\n\n\n\n\n\n\n
\u0421\u044a\u043e\u0442\u043d\u043e\u0448\u0435\u043d\u0438\u0435<\/th>\nCont. Torque (Nm)<\/th>\nMax. Torque (Nm)<\/th>\nMax RPM<\/th>\nPt F\/M (kW)<\/th>\n<\/tr>\n<\/thead>\n
7.69<\/td>\n1,100<\/td>\n2,400<\/td>\n3,500<\/td>\n4.0 \/ 5.5<\/td>\n<\/tr>\n
9.41<\/td>\n1,100<\/td>\n2,400<\/td>\n3,500<\/td>\n4.0 \/ 5.5<\/td>\n<\/tr>\n
12.75<\/td>\n1,100<\/td>\n2,400<\/td>\n3,500<\/td>\n4.0 \/ 5.5<\/td>\n<\/tr>\n
15.93<\/td>\n750<\/td>\n1,600<\/td>\n3,500<\/td>\n4.0 \/ 5.5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

3-Stage \u2014 ZR02**3 (9 Ratios)<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u0421\u044a\u043e\u0442\u043d\u043e\u0448\u0435\u043d\u0438\u0435<\/th>\nCont. Torque (Nm)<\/th>\nMax. Torque (Nm)<\/th>\nMax RPM<\/th>\nPt F\/M (kW)<\/th>\n<\/tr>\n<\/thead>\n
26.76<\/td>\n1,100<\/td>\n2,400<\/td>\n3,500<\/td>\n3.5 \/ 4.5<\/td>\n<\/tr>\n
32.76<\/td>\n1,100<\/td>\n2,400<\/td>\n3,500<\/td>\n3.5 \/ 4.5<\/td>\n<\/tr>\n
40.11<\/td>\n1,100<\/td>\n2,400<\/td>\n3,500<\/td>\n3.5 \/ 4.5<\/td>\n<\/tr>\n
44.38<\/td>\n1,100<\/td>\n2,400<\/td>\n3,500<\/td>\n3.5 \/ 4.5<\/td>\n<\/tr>\n
54.32<\/td>\n1,100<\/td>\n2,400<\/td>\n3,500<\/td>\n3.5 \/ 4.5<\/td>\n<\/tr>\n
67.88<\/td>\n1,100<\/td>\n2,400<\/td>\n3,500<\/td>\n3.5 \/ 4.5<\/td>\n<\/tr>\n
73.58<\/td>\n750<\/td>\n1,600<\/td>\n3,500<\/td>\n3.5 \/ 4.5<\/td>\n<\/tr>\n
91.94<\/td>\n750<\/td>\n1,600<\/td>\n3,500<\/td>\n3.5 \/ 4.5<\/td>\n<\/tr>\n
114.88<\/td>\n750<\/td>\n1,600<\/td>\n3,500<\/td>\n3.5 \/ 4.5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
ZR02 vs ZR01 \u2014 Same Ratios, More Torque: <\/span>
\nThe ZR02 shares the identical 13-ratio table with the ZR01 but raises the continuous torque rating from 750 Nm to 1,100 Nm at the primary ratios (7.69-67.88), and from 410-550 Nm to 750 Nm at the de-rated high ratios (15.93, 73.58-114.88). For applications operating at or near ZR01 limits, the ZR02 provides a 47% safety margin increase without any change to the installation footprint.<\/span><\/div>\n<\/section>\n

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Lubrication and Oil Management \u2014 Getting 20,000+ Hours from a Compact Frame<\/h2>\n

In a compact frame like the ZR02, oil volume is limited and thermal headroom is tighter than in the larger ZR models. Correct lubricant selection and oil management directly impact service life, operating temperature, and maintenance interval.<\/p>\n

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Standard: PAO Synthetic ISO VG 220<\/strong><\/p>\n

For ambient temperatures of -20 to +50 deg C. Factory-filled. Change at 500 hours (first fill), then every 4,000 hours. Provides the optimal viscosity-temperature balance for year-round outdoor operation in temperate and tropical climates.<\/p>\n<\/div>\n

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Cold Climate: PAO Synthetic ISO VG 150<\/strong><\/p>\n

For sustained operation below -20 deg C. Lower viscosity ensures adequate oil flow to bearings at cold start. Required for Nordic, Canadian, and high-altitude installations where winter ambient regularly drops below -30 deg C.<\/p>\n<\/div>\n

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Hot Climate: PAO Synthetic ISO VG 320<\/strong><\/p>\n

For ambient temperatures consistently above 45 deg C or enclosed environments with limited airflow. Higher base viscosity maintains adequate film thickness at elevated sump temperatures, protecting the 20CrMnTi gear tooth flanks from micro-pitting.<\/p>\n<\/div>\n

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Oil Analysis: Condition-Based Maintenance<\/strong><\/p>\n

Take a 100 ml sample at each oil change for spectrometric particle analysis. Track iron (Fe), copper (Cu), and silicon (Si) concentrations. Iron above 150 ppm or copper above 80 ppm indicates accelerated gear or bearing wear. Silicon above 30 ppm suggests seal ingress. Trending these values over time is more valuable than any single measurement.<\/p>\n<\/div>\n<\/div>\n

Never Use: <\/strong>Mineral gear oils (EP-type) are not compatible with the FKM seals and will cause premature swelling and leakage. Calcium-sulphonate complex greases are not a substitute for oil-bath lubrication in this frame. The ZR02 is not a grease-filled unit.<\/div>\n<\/div>\n
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\"Precision<\/p>\n

20CrMnTi gear steels hardened to HRC 58-62 \u2014 proper lubrication is critical for surface durability<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Where the Extra 350 Nm Makes a Difference<\/h2>\n

\"Slewing<\/p>\n

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Medium-Format Solar Trackers (80-120 m\u00b2)<\/h3>\n

Single-axis trackers with panel areas above 80 m\u00b2 generate wind-load torques that push the ZR01 above 85% of its rated capacity during storm conditions. The ZR02 at the same ratio provides a comfortable 40-50% margin under the same loads, eliminating the need for wind-stow emergency protocols that interrupt energy generation. Dual-axis trackers with 60-90 m\u00b2 panel areas also benefit from the higher peak torque (2,400 Nm) during rapid stow manoeuvres.<\/p>\n<\/div>\n

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Radar and Antenna Pedestals<\/h3>\n

Maritime radar arrays, VSAT satellite communication dishes, and military antenna pedestals require continuous, vibration-free rotation under wind loads that vary with vessel motion and environmental conditions. The ZR02 3-stage at ratios 44:1-68:1 provides the smooth, low-backlash output these precision-pointing applications demand, while the DIN 5-6 gear accuracy and under-3-arcminute backlash enable angular positioning within the beam-pointing error budget.<\/p>\n<\/div>\n

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Packaging and Food Processing Rotary Indexers<\/h3>\n

Bottle filling carousels, blister pack rotary tables, and food tray indexing stations require compact drives that operate cleanly in hygiene-sensitive environments. The ZR02 sealed housing eliminates external lubrication points, the IP67 rating withstands daily washdown cycles, and the stainless-steel output shaft option prevents corrosion from acidic food products and cleaning chemicals.<\/p>\n<\/div>\n<\/div>\n

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Industry Reference<\/h3>\n