Bonfiglioli Precision Planetary Gearbox Selection and Application Guide

Mn two≥M two EQ×fn×fT×fzM n2≥M 2EQ×f n×f T×f z 

At the same time, the peak torque M ₂ _max shall not exceed the maximum acceleration torque Ma2 or emergency stop torque Mp2 in the manual (1000 times allowed).

3.6 Bearing life verification

The output bearing is subjected to radial force R ₂, axial force A ₂, and overturning moment MT ₂. It is necessary to calculate the equivalent radial force R ₂ _ EQ and axial force A ₂ _ EQ, and then estimate the basic rated life L ₁₀ₕ based on the bearing constant CB and life index p (usually 3.33) provided in the manual using the following formula:

L ten h=sixteen thousand six hundred and sixty-six n two EQ×(CBM two EQ)

pL 10h= n 2EQ sixteen thousand six hundred and sixty-six×( M 2EQ C B ) p

The specific formula manual has been simplified, and it is recommended to use the Bangfeili digital tool SERVOSft or Mosaic 3.0 for actual selection.

Key parameters and application scenarios of each series

4.1 TQ series (top-level performance)

Torque range: 50~1600Nm (different machine bases 060~160)

Back clearance: standard ≤ 3~4arcmin, decrease ≤ 2arcmin

Stiffness: extremely high (Ct value can reach up to 3325Nm/arcmin)

Features: IP65, fluororubber oil seal, low noise (60-70dB), suitable for machine tool spindles, robot joints, and high-precision positioning platforms.

4.2 TQK series (right angle performance)

Speed ratio: two-stage and three-stage, range 6-200

Torque: Same level as TQ

Applicable: In situations where installation space is limited but high rigidity is required, such as automatic guided vehicles (AGVs) steering and packaging machinery lateral axis.

4.3 TR and MP series (modular multiple choice)

TR: Back clearance ≤ 5arcmin (single-stage), outstanding load capacity (R ₂ max up to 14000N), optional coaxial, right angle input (K-G), right angle output (MB) and other layouts.

MP: Back clearance ≤ 15 arcmin (single-stage), more cost-effective, suitable for medium precision applications such as woodworking machinery and conveyors.

4.4 LC/LCK series (economically efficient)

Torque: 10~450Nm (LC 050~155)

Back clearance: ≤ 12 arcmin (single-stage)

Option P: Increase output torque by approximately 30% to 50%

Application: Equipment that is cost sensitive but requires reliability, such as automated assembly, packaging lines, labeling machines, etc.

4.5 KR series (compact and flexible)

Speed ratio: 1, 2, 5 (single-stage bevel gear)

Output format: Solid shaft (single/double output), hollow shaft (with locking disc or key)

Bearing: Standard ball bearing (SB) or reinforced tapered roller bearing (HB)

Features: IP65, lightweight, suitable for shuttle cars, elevators, and small rotating tables.

4.6 SL series (belt drive optimization)

The output end is specifically designed for installing synchronous pulleys, with strong radial load-bearing capacity.

Back clearance ≤ 6arcmin (single-stage), compact design, suitable for conveyor belt drive.

Precautions for installation and selection

5.1 Motor adaptation

Bangfeili offers a wide range of motor adapters (FM) that can be matched with mainstream servo motor brands such as Siemens, Fanuc, Yaskawa, and Beijare. When placing an order, please specify the motor model, shaft diameter, and installation hole spacing. You can also choose the adapter free version (IS) to directly customize the input shaft aperture.

5.2 Lubrication and Maintenance

S1 continuous working system: using ISO VG 220 synthetic oil; S5 intermittent working system: use NLGI 00 grease.

It has been filled at the factory and does not need to be replaced under normal working conditions (no pollution).

The ambient temperature should be between -20 ° C and+40 ° C (if it exceeds 30 ° C, the rating should be reduced), and the shell temperature should not exceed 90 ° C.

5.3 Protection level

Performance lines are mostly IP65 (dustproof and splash proof), Effective lines are mostly IP54 (dustproof and splash proof), and KR series are IP65.

5.4 Installation position

Each series supports multiple installation positions (horizontal, vertical, hanging, etc.), please refer to the installation position codes (ORVA, VB, etc.) in the manual for details. Please note that the oil seal and lubrication method may vary depending on the installation direction, and should be clearly specified when ordering.

Digital tools assist in selection

Bangfeili provides three online/software tools to accelerate the design process:

SERVOsft ®： Multi axis servo system selection, supporting 15 mechanisms and up to 50 axes, can simultaneously select motors, gearboxes, and drivers, and calculate dynamic response and energy consumption.

Mosaic 3.0: Product Configuration and Order Assistant, where you can input parameters online to obtain models, drawings, and 3D models.

EPLAN data: Provides device macro files to simplify electrical drawing design.

It is recommended that engineers use the above tools for verification after completing preliminary calculations and directly generate order codes (such as TQ 090 1 3 STD 50B CD 14 KE).

Practical engineering cases and common misconceptions