Designs and options | PxG® planetary servo gear units

PxG^® planetary servo gear units:
Designs to suit any requirements

Are you looking for something with high power density, small installation space and optimized service life?

Then our PxG^® planetary servo gear units offer crucial added value for all your requirements. All drives can be custom designed with appropriate service life, precision and performance.

A wide-ranging, scalable modular system – consisting of three performance classes, each in six sizes in one- to three-stage designs – offer all the flexibility you need:

Performance class 5 for dynamic applications in intermittent duty with high switching frequency
Performance class 6 for applications in continuous duty with high speeds
Performance class 7 for applications in intermittent duty with restricted space

Perfectly adaptable to your application

Wide-ranging modular system with three performance classes
Numerous options
Compatibility with the market standard

High power density in a small installation space

High torque
Symmetrical and very compact design

High quality and long service life

New production and assembly processes
Hardened annulus gearing
Tribologically optimized surfaces

Numerous options available

Various output bearings
Two rotational clearance classes
Various lubricants and seals

Type designation and designs

What do the abbreviations on the nameplate strip mean?

The banderoles of the PxG® planetary servo gear units are lasered in-house at SEW-EURODRIVE: In addition to the performance class label and the nameplate, you will also find an individual QR code there - your door opener to Digital Services.

Example in the image – P5BG41-0010/N/S/0 HC14.01

			P5.G..	P6.G..	P7.G..
P	P – gear unit type	P = servo gear unit	•	•	•
P5	5 – Performance class	5 = Focus: high dynamic properties 6 = Focus: medium speeds 7 = Focus: high torques	•	•	•
P5B	B – Output design	B = Flange block (without index bore) C = Flange block (with index bore) N = Smooth solid shaft K = Solid shaft with key V = Multiple-spline shaft	• • • • •	• • • • •	•
P5BG	G – Gear unit version	G = Planetary gear unit	•	•	•
P5BG4	4 – Size	2 = Size 2 3 = Size 3 4 = Size 4 5 = Size 5 6 = Size 6 7 = Size 7	• • • • •	• • • • • •	• • • • • •
P5BG41	1 – Number of stages	1 = 1-stage 2 = 2-stage 3 = 3-stage	• • •	• • Inquiry	• • •
P5BG41-0010	0010 – Gear ratio	0003: i = 3 0004: i = 4 0005: i = 5 005x: i = 5.5 ... 0100: i = 100 0000: i = Special (non-series) gear ratio	• • • ...	• • • ...	• • • ...
P5BG41-0010/N	/N – Rotational clearance	N = Standard: 3 – 4 arcmin R = Reduced: 1 – 2 arcmin X = Special (non-series) rotational clearance	• •	• •	•
P5BG41-0010/N/S	/S – Lubricant	S = Synthetic oil – GearOil by SEW-EURODRIVE F = Food grade lubricating oil G = Synthetic grease H = Food grade lubricating grease X = Special (non-series) lubricant	• • •	• • • • •	• • •
P5BG41-0010/N/S/0	/0 – Special design	0 = Standard X = Special design	• •	• •	• •
P5BG41-0010/N/S/0 HC	HC – Adapter type (clamp coupling)	HN = Clamp coupling HB = ... with bellows HL = ... with clamping ring optimized for mass moment of inertia HC = ... with clamping ring optimized for mass moment of inertia and metal bellows coupling	• • • •	• •	• • • •
P5BG41-0010/N/S/0 HC14.01	14.01 – Adapter size / coupling sleeve / flange square	Detailed information in the PxG® catalog	•	•	•

Connection on the output end

– perfectly tuned to your application

PxG^®planetary servo gear units offer the perfect connection on the output end for every requirement – be it solid shaft without key(N) or with key (K), splining shaft to DIN5480 (V) or with flange block shaft (B / C).

Rotational clearance

– lower rotational clearance for greater precision

PxG^® planetary servo gear units have low rotational clearance as standard, meaning they are extremely precise even in their standard design. This high level of precision can be raised further through the option of reducing the rotational clearance.

Lubricant

– increase the service life of your gear unit

Our PxG^® planetary servo gear units are fitted with a synthetic oil from our "GearOil by SEW-EURODRIVE" portfolio. Optionally, and depending on the application, they are also available with other lubricants.

Customized design

– when your application has special requirements

It goes without saying that it is also possible to custom design your PxG^® planetary servo gear unit on request. We indicate such cases with an "X" in the type code.

Adapter on the input end (motor)

– for a smooth motor shaft

Depending on the servomotor used, various clamp couplings are available for the input end. For example, a bellows coupling can be used to compensate for a heat-related change in the length of the motor shaft (HB). The clamping ring optimized for the mass moment of inertia can be used specifically for dynamic applications (HL).

Three performance classes

– for a class performance

Technical data for PxG® planetary servo gear units

Planetary servo gear units		P5.G..	P6.G..	P7.G..
Sizes		21, 22, 31, 32, 33, 41, 42, 43, 51, 52, 53 NEW: 61, 62, 63, 71, 72, 73
Gear ratio	1-stage	3 – 10	3 – 10	4 – 5.5
	2-stage	12 – 100	12 – 100	16 – 55
	3-stage	64 – 1000	On request	64 – 550
Acceleration torque		66 – 4200 Nm	40 – 2000 Nm	80 – 6150 Nm
Rotational clearance		3 – 4 arcmin	3 – 4 arcmin	1 arcmin
Service life		20 000 hrs (cdf 60%)	30 000 hrs (cdf 100%)	20 000 hrs (cdf 60%)
Output variants		Solid shaft (smooth, key or splining), flange block shaft with or without index bore		Flange block shaft without index bore
Lubrication for life		GearOil Poly E1 by SEW-EURODRIVE or Grease HL 2 E1* by SEW-EURODRIVE, also available in H1 (food grade) *Grease lubrication only available with P6.G..
Seal		Premium Sine Seal oil seal or labyrinth seal (in the case of grease lubrication)

P5.G..

– the scalable all-rounder

The PxG^® planetary servo gear units in performance class 5 are especially suitable for dynamic applications in intermittent duty with a high switching frequency.

Helical gearing to keep everything running very smoothly and uniformly
Consistent precision over the entire service life thanks to hardened gearing
Optimized for short-time duty (S3 duty cycle), cdf < 60%
Designed for a service life of 20 000 hrs

Benefits for you:

High degree of standardization
Broad range of uses and excellent compatibility with the market standard
High dynamics
Optimized for numerous load changes and high switching frequency coupled with consistent precision
Wide variety of options
Flexible use for a wide range of applications

P6.G..

– the fast endurance runner

The PxG^® planetary servo gear units in performance class 6 are especially suitable for applications in continuous duty with high speeds.

Modified bearing concept to ensure high efficiency based on low thermal losses
Special coating on the gearing components reduces wear, ensuring a long service life
Optimized for continuous duty (S1 duty cycle), cdf = 100%
Designed for a service life of 30 000 hrs

Benefits for you:

Increased service life for high cost-efficiency
Reduced thermal losses for use in continuous duty
Geometrical compatibility with performance class 5

Modification option for performance class 5:

Bellows coupling to compensate for thermal changes to the motor shaft length in the gear unit adapter
Option of point or line contact in the output bearing