{"id":100,"date":"2026-06-10T08:15:53","date_gmt":"2026-06-10T08:15:53","guid":{"rendered":"https:\/\/planetary-gearboxes.cn\/?post_type=product&p=100"},"modified":"2026-06-10T08:15:53","modified_gmt":"2026-06-10T08:15:53","slug":"fpg-series-planetary-gearbox","status":"publish","type":"product","link":"https:\/\/planetary-gearboxes.cn\/ko\/%ec%a0%9c%ed%92%88\/fpg-series-planetary-gearbox\/","title":{"rendered":"EP-FPG \/ EP-FPGA Series Economy Planetary Gearbox | Round & Square Housing"},"content":{"rendered":"
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<\/p>\n

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ECONOMY TIER<\/span>
\nROUND OR SQUARE HOUSING<\/span>
\nCASTROL LMX<\/span><\/div>\n

EP-FPG \/ EP-FPGA Series \u2014 Economy Planetary Gearbox<\/h2>\n

Servo-grade torque density at economy pricing. EP-FPG<\/strong> = round cylindrical housing \u00a0|\u00a0 EP-FPGA<\/strong> = square housing. Identical internals \u2014 choose the housing shape your machine interface requires.<\/p>\n

5 Frame Sizes<\/span>
\n9\u2013423 Nm<\/span>
\ni = 3 \u2013 100<\/span>
\n20,000 hr Life<\/span>
\nIP64<\/span><\/div>\n<\/div>\n<\/div>\n

<\/p>\n

EP-FPG vs EP-FPGA \u2014 Housing Shape, Identical Internals<\/h2>\n
\n
\n
\ud83d\udd35<\/div>\n

EP-FPG \u2014 Round (Cylindrical) Housing<\/h3>\n

Cylindrical outer housing \u2014 bolt flange at the output face only. Suits installation in a round bore or a custom machined housing. Common in compact equipment with circular motor pocket mounts.<\/p>\n

Frame designations: EP-FPG040, EP-FPG060, EP-FPG080, EP-FPG120, EP-FPG160<\/div>\n<\/div>\n
\n
\ud83d\udfe7<\/div>\n

EP-FPGA \u2014 Square Housing<\/h3>\n

Square outer housing with four-bolt mounting flange on the housing face. Direct bolt-down mounting to a flat machine surface. Common in general-purpose servo automation where a square footprint is preferred.<\/p>\n

Frame designations: EP-FPGA040, EP-FPGA060, EP-FPGA080A, EP-FPGA120A, EP-FPGA160<\/div>\n<\/div>\n<\/div>\n
Key spec differences from the premium EP-FAB\/EP-FAD:<\/strong> The EP-FPG\/FPGA series uses CASTROL LMX grease<\/strong> (not NYOGEL 792D), is rated to IP64<\/strong> (not IP65), operates from 0\u00b0C to +90\u00b0C<\/strong> (not \u221210\u00b0C), and has a standard backlash of \u22646\u20138 arc-min<\/strong> (not \u22641\u20135 arc-min). These differences make it significantly more cost-effective for general servo automation where the tighter specs of the premium series are not needed.<\/div>\n

Frame Size Range \u2014 040 to 160<\/h2>\n
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\n
040<\/div>\n
EP-FPG040 \/ EP-FPGA040<\/div>\n
9\u201314 Nm, 0\u00b0C, \u22648 arc-min<\/div>\n<\/div>\n
\n
060<\/div>\n
EP-FPG060 \/ EP-FPGA060<\/div>\n
26\u201339 Nm<\/div>\n<\/div>\n
\n
080<\/div>\n
EP-FPG080 \/ EP-FPGA080A<\/div>\n
65\u2013104 Nm<\/div>\n<\/div>\n
\n
120<\/div>\n
EP-FPG120 \/ EP-FPGA120A<\/div>\n
150\u2013215 Nm<\/div>\n<\/div>\n
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160<\/div>\n
EP-FPG160 \/ EP-FPGA160<\/div>\n
Up to 423 Nm<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

EP-FPG \/ EP-FPGA Series Technical Specifications<\/h2>\n

\"EP-FPG_EP-FPGA<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nEP-FPG040 \/ EP-FPGA040<\/th>\nEP-FPG060 \/ EP-FPGA060<\/th>\nEP-FPG080 \/ EP-FPGA080A<\/th>\nEP-FPG120 \/ EP-FPGA120A<\/th>\nEP-FPG160 \/ EP-FPGA160<\/th>\n<\/tr>\n<\/thead>\n
Rated Output Torque T\u2082\u2099 (Nm) \u2014 1-stage (i=3\u201310)<\/td>\n<\/tr>\n
i=3<\/td>\n14<\/td>\n39<\/td>\n104<\/td>\n215<\/td>\n423<\/td>\n<\/tr>\n
i=4<\/td>\n12<\/td>\n31<\/td>\n85<\/td>\n176<\/td>\n364<\/td>\n<\/tr>\n
i=5<\/td>\n14<\/td>\n39<\/td>\n104<\/td>\n215<\/td>\n423<\/td>\n<\/tr>\n
i=7<\/td>\n12<\/td>\n33<\/td>\n91<\/td>\n195<\/td>\n358<\/td>\n<\/tr>\n
i=10<\/td>\n9<\/td>\n26<\/td>\n65<\/td>\n150<\/td>\n293<\/td>\n<\/tr>\n
Rated Output Torque T\u2082\u2099 (Nm) \u2014 2-stage (i=15\u2013100)<\/td>\n<\/tr>\n
i=15 \/ 16<\/td>\n14 \/ 12<\/td>\n39 \/ 31<\/td>\n104 \/ 85<\/td>\n215 \/ 176<\/td>\n423 \/ 364<\/td>\n<\/tr>\n
i=20 \/ 25<\/td>\n12<\/td>\n31<\/td>\n85<\/td>\n176<\/td>\n364<\/td>\n<\/tr>\n
i=30 \/ 35<\/td>\n14 \/ 12<\/td>\n39 \/ 33<\/td>\n104 \/ 91<\/td>\n215 \/ 195<\/td>\n423 \/ 358<\/td>\n<\/tr>\n
i=40 \/ 50<\/td>\n12<\/td>\n31<\/td>\n85<\/td>\n176<\/td>\n364<\/td>\n<\/tr>\n
i=70 \/ 100<\/td>\n12 \/ 9<\/td>\n33 \/ 26<\/td>\n91 \/ 65<\/td>\n195 \/ 150<\/td>\n358 \/ 293<\/td>\n<\/tr>\n
Performance Parameters<\/td>\n<\/tr>\n
Max Output Torque T\u2082\u2098\u2090\u2093<\/td>\n3\u00d7 rated torque (all sizes)<\/td>\n<\/tr>\n
Rated Input Speed n\u1d62\u2099 (rpm)<\/td>\n4,500<\/td>\n4,000<\/td>\n3,600<\/td>\n3,000<\/td>\n2,500<\/td>\n<\/tr>\n
Max Input Speed n\u1d62\u2099\u2098\u2090\u2093 (rpm)<\/td>\n8,000<\/td>\n6,000<\/td>\n6,000<\/td>\n4,800<\/td>\n3,600<\/td>\n<\/tr>\n
Backlash \u2014 1-stage (arc-min)<\/td>\n\u22648 (measured at 2% of rated torque T\u2082\u2099)<\/td>\n<\/tr>\n
Backlash \u2014 2-stage (arc-min)<\/td>\n\u226410 (measured at 2% of rated torque T\u2082\u2099)<\/td>\n<\/tr>\n
Torsional Rigidity (Nm\/arc-min)<\/td>\n0.8<\/td>\n2.2<\/td>\n7.2<\/td>\n14.5<\/td>\n65.5<\/td>\n<\/tr>\n
Permissible Radial Force F_rad (N)<\/td>\n300<\/td>\n680<\/td>\n1,750<\/td>\n3,080<\/td>\n6,520<\/td>\n<\/tr>\n
Permissible Axial Force F_ax (N)<\/td>\n150<\/td>\n340<\/td>\n875<\/td>\n1,540<\/td>\n3,260<\/td>\n<\/tr>\n
Service Life (hr)<\/td>\n\u226520,000 (S5 intermittent) \/ \u226510,000 (S1 continuous)<\/td>\n<\/tr>\n
Efficiency \u03b7 \u2014 1-stage \/ 2-stage<\/td>\n\u226597% \/ \u226594%<\/td>\n<\/tr>\n
Weight \u2014 1-stage (kg)<\/td>\n0.7<\/td>\n1.7<\/td>\n3.6<\/td>\n8.1<\/td>\n18.2<\/td>\n<\/tr>\n
Weight \u2014 2-stage (kg)<\/td>\n1.0<\/td>\n2.4<\/td>\n5.0<\/td>\n11.4<\/td>\n24.9<\/td>\n<\/tr>\n
Operating Temperature \u26a0\ufe0f<\/strong><\/td>\n0\u00b0C to +90\u00b0C<\/strong> (lower limit is 0\u00b0C, not \u221210\u00b0C)<\/td>\n<\/tr>\n
Lubricant \u26a0\ufe0f<\/strong><\/td>\nCASTROL LMX grease<\/strong> (not NYOGEL 792D)<\/td>\n<\/tr>\n
Protection Class \u26a0\ufe0f<\/strong><\/td>\nIP64<\/strong> (not IP65)<\/td>\n<\/tr>\n
Mounting Direction<\/td>\nAny direction<\/td>\n<\/tr>\n
Noise (n\u1d62\u2099=3,000 rpm, dB)<\/td>\n\u226468<\/td>\n\u226470<\/td>\n\u226472<\/td>\n\u226474<\/td>\n\u226475<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u26a0\ufe0f Important: Three parameters differ from the premium EP-FAB\/EP-FAD\/EP-FAL series \u2014 Operating Temperature (0\u00b0C minimum), Lubricant (CASTROL LMX), and Protection Class (IP64). Verify these against your application requirements before specifying. * Service life under S5 intermittent duty; S1 continuous duty reduces life by 50%.<\/p>\n

<\/p>\n

EP-FPG vs EP-FAB \u2014 When Economy Is Sufficient<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n
Specification<\/th>\nEP-FPG \/ FPGA<\/th>\nEP-FAB (Premium)<\/th>\nImplication<\/th>\n<\/tr>\n<\/thead>\n
Backlash<\/td>\n\u22648 arc-min (1-stage)<\/td>\n\u22641\u20135 arc-min (P0\u2013P2)<\/td>\nChoose EP-FAB for servo positioning axes requiring \u22645 arc-min; FPG for conveyor, pump, fan, and general drives<\/td>\n<\/tr>\n
Lubricant<\/td>\nCASTROL LMX<\/td>\nNYOGEL 792D<\/td>\nCASTROL LMX suitable for 0\u00b0C+; NYOGEL 792D required for \u221210\u00b0C cold-start environments<\/td>\n<\/tr>\n
Protection<\/td>\nIP64<\/td>\nIP65<\/td>\nIP64: dust-tight, splash-proof. IP65: adds resistance to direct low-pressure water jets \u2014 required for coolant flood and washdown<\/td>\n<\/tr>\n
Min. Operating Temp.<\/td>\n0\u00b0C<\/td>\n\u221210\u00b0C<\/td>\nFPG not suitable for outdoor cold-start or unheated warehouse environments in winter<\/td>\n<\/tr>\n
Service Life<\/td>\n20,000 hr (S5)<\/td>\n20,000 hr (S1\/S5)<\/td>\nFPG S1 continuous life is 10,000 hr; EP-FAB maintains 20,000 hr under S1 \u2014 for 24\/7 continuous duty, EP-FAB is preferred<\/td>\n<\/tr>\n
\ud504\ub808\uc784 \ud06c\uae30<\/td>\n5 (040\u2013160)<\/td>\n9 (042\u2013220)<\/td>\nNarrower torque range \u2014 EP-FAB needed for torques above 423 Nm<\/td>\n<\/tr>\n
Noise<\/td>\n\u226468\u201375 dB<\/td>\n\u226456\u201370 dB<\/td>\nFPG is noisier \u2014 not recommended for lab, medical, or office-adjacent environments<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

<\/p>\n

Engineering Features<\/h2>\n

\"EP-FPG_EP-FPGA<\/p>\n

\n
\n
\ud83d\udcb0<\/div>\n

Economy Pricing \u2014 Servo Torque Density<\/h3>\n

The EP-FPG\/FPGA delivers planetary gearbox torque density and efficiency (\u226597% 1-stage) at a lower unit cost than premium series \u2014 by relaxing backlash, IP, lubricant, and cold-start specs that many applications don’t require.<\/p>\n<\/div>\n

\n
\ud83d\udd35\ud83d\udfe7<\/div>\n

Two Housing Options<\/h3>\n

EP-FPG (round housing): fits round bores and cylindrical mounting pockets. EP-FPGA (square housing): four-bolt flat-mount to machine surfaces. Same internals \u2014 choose by housing interface.<\/p>\n<\/div>\n

\n
\ud83d\udd17<\/div>\n

Standard Motor Adapter System<\/h3>\n

Same clamp-ring motor adapter system as the EP-FAB\/EP-FAD. Motor adapters validated for premium series are compatible with the corresponding EP-FPG\/FPGA frame size.<\/p>\n<\/div>\n

\n
\u2699\ufe0f<\/div>\n

\u226597% \/ \u226594% Efficiency<\/h3>\n

Despite economy pricing, the planetary gear stage efficiency equals that of the premium series. Helical planet gears and profile-ground ring gear deliver low heat generation in the gear mesh.<\/p>\n<\/div>\n

\n
\ud83d\udd22<\/div>\n

Ratios 3:1 to 100:1<\/h3>\n

1-stage: i=3, 4, 5, 7, 10. 2-stage: i=15, 16, 20, 25, 30, 35, 40, 50, 70, 100. Covers the standard servo reduction range for most conveyor, pump, and general automation axes.<\/p>\n<\/div>\n

\n
\u2195\ufe0f<\/div>\n

Any Mounting Direction<\/h3>\n

Horizontal, vertical, or inverted mounting without performance penalty. CASTROL LMX grease retains effective lubrication in any orientation within the 0\u00b0C\u2013+90\u00b0C range.<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

Motor Assembly<\/h2>\n
\n
\n

\"EP-FPG<\/p>\n

EP-FPG\/FPGA motor assembly using the standard clamp-ring adapter system<\/p>\n<\/div>\n

\n

The EP-FPG and EP-FPGA use the same clamp-ring motor adapter assembly process as the EP-FAB \u2014 the standard 8-step procedure applies. Two points are specific to the FPG\/FPGA economy series:<\/p>\n

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\ud83c\udf21\ufe0f Cold-Start Temperature Limit<\/div>\n

The EP-FPG\/FPGA minimum operating temperature is 0\u00b0C<\/strong>. Do not power the servo motor before the gearbox has warmed above 0\u00b0C. CASTROL LMX grease loses adequate viscosity at sub-zero temperatures. For installations in unheated buildings or outdoor enclosures in cold climates, specify the EP-FAB or EP-FAD series with NYOGEL 792D, which is rated to \u221210\u00b0C.<\/p>\n<\/div>\n

\n
\ud83d\udca7 IP64 Splash Protection<\/div>\n

IP64 provides dust-tight protection and protection against water splashing from any direction. It does not provide protection against low-pressure water jets (hose-down) or coolant flood. For direct coolant or washdown environments, specify the IP65-rated EP-FAB or EP-FAD series.<\/p>\n<\/div>\n

\n
\ud83d\udcd0 Backlash Measurement Method<\/div>\n

EP-FPG\/FPGA backlash is measured at 2% of rated torque T\u2082\u2099 \u2014 the same method as the premium series. The specification \u22648 arc-min (1-stage) and \u226410 arc-min (2-stage) applies across all frame sizes. No P0\/P1\/P2 grade selection is available; all units are built to a single standard grade.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

Manufacturing & Quality<\/h2>\n
\n
\"Korea<\/div>\n
\n

The EP-FPG and EP-FPGA are manufactured in the same Korea Ever-Power facility as the premium series, using the same CNC gear-grinding equipment. The quality process is condensed relative to the premium series, consistent with the economy-grade specification:<\/p>\n