Bonfiglioli F series gearbox spare parts identification and replacement guide

Bonfiglioli F series gearbox spare parts identification and replacement guide

In the full lifecycle management of industrial transmission equipment, spare parts management is a key link to ensure the continuous operation of equipment and shorten downtime. However, when faced with the intricate gear system, bearing assembly, and sealing system inside the gearbox, on-site engineers often face the dilemma of how to quickly and accurately identify the parts that need to be replaced? How to ensure that the ordered spare parts match the on-site equipment perfectly?

The Bonfiglioli F series gearbox spare parts list manual is a professional technical document designed to address this pain point. This article is based on the detailed spare parts data in the manual (covering the entire series from F 10 to F 90, including multiple output configurations, input interfaces, and additional options), providing a systematic guide for spare parts identification and replacement operations for on-site maintenance engineers, helping to efficiently and accurately complete maintenance tasks.

The structural system and usage logic of spare parts list

1.1 Modular spare parts index

The F-series spare parts manual adopts a modular indexing system, categorizing all spare parts by functional sub components rather than simply listing them by part type. Engineers first need to determine the corresponding spare parts table based on the equipment model when using it.

The spare parts table index (Quadro d'unione) on the homepage of the manual clearly displays the combination relationship between different input configurations and output configurations:

The input type is applicable to the spare parts table number corresponding to the F-series model

F 60 3 / F 60 4 F 60 8 + 22

F 70 3 / F 70 4 F 70 10 + 22 + 24

F 80 3 / F 80 4 F 80 10 + 20 + 22 + 24

F 90 3 / F 90 4 F 90 10 + 22 + 24

Engineering suggestion: Before consulting the spare parts manual, it is necessary to confirm the complete model identification of the equipment (model code on the nameplate), and then refer to the index table to find the corresponding spare parts table number combination.

1.2 Engineering value of Exploded View

The core content of the manual is the Exploded View of each sub component, which is a three-dimensional diagram that decomposes an assembly into independent parts. For on-site maintenance engineers, the value of explosion views lies in:

Intuitive presentation of assembly relationships: Clearly display the relative positions and installation sequence of each component

Clear part boundaries: Each replaceable part has a unique part number (Pos.) identification

Assisted disassembly and assembly: providing visual guidance for maintenance operations

Detailed explanation of spare parts for Output Sub assemblies

The output sub component is the core part of the F series reducer connected to the load end, and it is also the component that bears the maximum torque and radial load. Its spare part identification is the most critical.

2.1 Output configuration types

The F series offers multiple output shaft configurations, each with a different composition of spare parts:

Typical Application Scenarios of Output Code Meaning

Hollow shaft directly connects to user shaft, saving space

NH hollow shaft with tightening disc for high torque transmission, easy to install and disassemble

The R solid shaft has the strongest universality and is suitable for various types of couplings

Solid shaft high reliability connection with NR tightening disc

The S-shaped solid shaft is suitable for sliding fit or quick replacement scenarios

2.2 Core spare parts for output sub components (examples of F 10/F 20)

Taking the output sub components of F 10 and F 20 as an example, the manual lists the following key spare parts and their specifications:

Item number, part name, F 10 specification, F 20 specification, engineering description

152 Housing 6200 6200 gearbox housing, cast parts

221 Pinion gear 6200 6300 input stage active gear

222 gear 6200 6200 final driven gear

871 output shaft - transmits torque to load

951 plug-in output shaft 8 × 7 × 20 A 6.35 × 6.35 × 44.5 solid shaft with keyway

2.3 Comparison of Bearing and Oil Seal Specifications

The manual provides a detailed list of the specifications for each type of bearing (Cuscinetto) and oil seal (Guanizione), which is the most commonly queried information during on-site replacement.

Comparison Table of F 25/F 31/F 41/F 51 Series Bearings (Key Tag 5451-5468):

Model Tag 5451/5452 Bearing Tag 5453 Bearing Tag 5454 Bearing Oil Seal Specification

F 25 2 30302 6011 6011 42×7

F 25 3 6302 6011 6011 42×7

F 31 2 30303 6011 6211 47×7

F 41 2 30304 6013 6213 62×7

F 51 2 32206 6015 6215 72×10

Note: Bearings marked with * (such as 6211-2RS) are suitable for H6 installation position (vertical installation) and use double-sided sealed bearings to prevent grease leakage.

Spare parts for output sub components of size 2.4 F 60 and larger

The output sub component structures of the F 60, F 70, F 80, and F 90 series are more complex, involving more gear stages and bearing groups.

F 60 core spare parts:

Tag number, part name, specification/model, remarks