Right Angle Planetary Gearboxes

Our right angle planetary gearbox series delivers output torque at exactly 90° to the input shaft — combining a multi-stage planetary reducer with a spiral bevel output stage. Two series available: EP300R (16 frame sizes up to 500,000 Nm) and NB300R (12 frame sizes up to 450,000 Nm). Every unit 100% load-tested before shipment.

Right Angle Gear Drives Planetary Gearboxes 1

What Is a Right Angle Planetary Gearbox

— and When Do You Need One?

A right angle planetary gearbox adds a spiral bevel gear stage at the output of a standard multi-stage planetary reducer, redirecting output torque to exactly 90° relative to the input shaft. This is the defining difference from an inline (coaxial) planetary gearbox — and the reason engineers specify this type when a machine’s geometry makes in-line shaft arrangement impossible.

The spiral bevel output stage matters: progressive tooth contact reduces noise and vibration versus straight-cut bevel designs at equivalent torque ratings — an important consideration for equipment installed in occupied structures, greenhouses, or noise-restricted industrial environments.

When to choose right angle
Use when the drive motor axis must be perpendicular to the load shaft — wheel drives, winch drums, conveyor corner drives, or any application where inline layout is geometrically blocked by structural members.
When inline is sufficient
If the motor and load can be positioned on the same axis, an inline planetary gearbox is slightly more efficient (no bevel stage loss) and typically lower cost. Use right angle only where the geometry requires it.
Replacing an existing unit
Send the nameplate data from your current gearbox (brand, model, ratio, torque, input type). We’ll identify the correct EP300R or NB300R frame and variant for a direct-fit swap — typically confirmed within 4 hours.

How to Select the Right Right Angle Planetary Gearbox

— 3-Step Process

Provide these three inputs and we’ll confirm the correct series, frame, and variant within 24 hours.

Define Output Torque & Ratio
Calculate required output torque (Nm) including peak load factor (typically 1.5–3×). Determine required output RPM and divide into your motor speed to get the gear ratio. These two numbers determine the frame size and stage count.
Specify Motor Interface & Output Shaft
State your motor type (hydraulic axial piston / orbit motor / IEC electric / NEMA electric / solid shaft) and frame size. Choose output shaft type: solid with key, splined, splined hollow, or hollow with shrink disc. This determines the input and output adaptor combination.
Confirm Brake & Mounting Requirements
Specify if a parking brake is required (hydraulic or DC/AC electric) and your output mounting preference (foot or flange). For replacement projects — simply send the existing nameplate data. We handle the cross-reference.

Drop-In Replacement for 7 Major Brands

Both the EP300R and NB300R series are dimensionally equivalent to the leading European right angle gear drives. Identical mounting flange, output shaft dimensions,

and bolt patterns— no shimming, no modification, no custom adaptor work..

Ever-Power does not sell products of this brand; the use of this brand is merely for product selection convenience and does not involve any infringement.

Bonfiglioli

Right angle planetary units. EP300R / NB300R replaces equivalent Bonfiglioli series with identical flange and shaft dimensions.

Brevini Riduttori

BM / BF series right angle drives. Direct dimensional match across standard frame sizes and common ratio selections.

Bosch Rexroth

Right angle planetary reducer equivalents. Confirm frame designation from nameplate for exact cross-reference.

Comer Industries

Agricultural and industrial right angle gear drives. Matches on flange pattern and output shaft configuration.

Reggiana Riduttori

Right angle series replacement. Send nameplate data for direct frame-size confirmation.

Rossi

Modular bevel-planetary series. EP300R matches on output mounting and shaft options across the common torque range.

Zollern

Right angle planetary reducers for construction and industrial equipment. Confirm ratio and torque from nameplate for exact match.

Other Brands?

Send any brand’s nameplate data. We cross-reference by torque, ratio, and mounting dimensions — not just brand name.

Why OEM Buyers Source

Right Angle Planetary Gearboxes From Us

What We OfferThe Specifics
100% Load-TestedNo-load run-in followed by full rated-torque bench test on every unit. Signed test report ships with every order — no exceptions.
OEM Dimensional FitMounting flange, shaft dimensions, and bolt patterns match the original Bonfiglioli / Brevini / Rexroth unit. Average swap time: 4–6 hours with standard tooling.
No MOQSingle-unit emergency orders accepted on the same lead time as bulk. Volume pricing available — contact us with quantity.
4–7 Day In-Stock Lead TimeIn-stock standard units: 4–7 business days. Custom ratio or brake option: 10–35 days depending on specification. Air freight for urgent orders.
12-Month Warranty12 months from shipment date. Defective units replaced. Report with supporting data and photos — we handle it directly.
FISO 9001:2015Certified quality system covering CNC precision machining, DIN/AGMA gear hobbing, heat treatment, and assembly. CE and RoHS documentation available.
Global ShippingSea (LCL/FCL), air, DHL/FedEx/UPS. EXW, FOB, CFR, CIF from Jiangmen Port. Ships to Canada, Australia, USA, Europe and 50+ countries.

Frequently Asked Questions — Right Angle Planetary Gearbox

What is the price difference between a right angle and inline planetary gearbox at the same torque?

A right angle planetary gearbox typically costs 8–15% more than an equivalent inline unit at the same torque rating, due to the additional spiral bevel gear stage. In most applications, this premium is offset by the elimination of costly right-angle adaptor brackets or custom shaft couplings. Contact us for a direct price comparison for your specific torque and ratio requirement.

What is the efficiency loss through the bevel stage in a right angle planetary gearbox?
The spiral bevel output stage adds approximately 2–3% efficiency loss per pass. For a 3-stage planetary unit with a bevel output, total efficiency is typically 94–96% — versus 97–98% for a comparable inline planetary unit. For most industrial and mobile equipment applications, this difference is negligible relative to the layout flexibility gained.
Can I order a right angle planetary gearbox replacement for Bonfiglioli without sending drawings?

Yes — in most cases the nameplate data is sufficient. Send the brand name, series code, gear ratio, output torque or frame size designator, and input/output configuration. We cross-reference against our compatibility database and confirm the matching EP300R or NB300R variant within 4 business hours. For unusual or non-standard configurations, a dimensional drawing of the critical interfaces may be requested.

Are non-standard gear ratios available in the EP300R right angle gearbox?

Non-standard ratios within the production range (6.9:1 to 9,000:1) are available to order with a 10–35 day lead time. Specify your required output RPM and input motor speed — we’ll calculate the exact ratio and confirm the nearest standard option or advise on a non-standard production run depending on quantity and urgency.

What documents are included with a right angle planetary gearbox shipment?

Every order includes: signed load test report, commercial invoice, packing list, and bill of lading. Certificate of origin, CE declaration, and ISO 9001:2015 conformance certificate are available on request at no additional charge. All documentation is provided in English.

Get In Touch

Source Your Right Angle Planetary Gearbox — Quote in 24 Hours

Tell us your torque requirement, gear ratio, motor interface, and output shaft type — or send the nameplate data from your existing unit. We’ll confirm the correct EP300R or NB300R frame, price, and lead time within 24 business hours. No minimum order quantity. Ships to Canada, Australia, USA, Europe, and 50+ countries.

24-hour quotation guarantee on all enquiries

MOQ 1 unit — no minimum order quantity required
CE & ISO documentation included with every shipment
OEM / private labelling available on all 10 types
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