Helical and bevel-helical gear units C-A-F-S Series
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Catalog excerpts

Helical and bevel-helical gear units C-A-F-S Series - 1

C-A-F-S series Helical gear units C Helical bevel gear units A Shaft mounted gear units F Single stage gearboxes S C-A-F-S series We have a relentless commitment to excellence, innovation and sustainability. Our team creates, distributes and services world-class power transmission and drive solutions to keep the world in motion. HEADQUARTERS Bonfiglioli Riduttori S.p.A. Via Giovanni XXIII, 7/A 40012 Lippo di Calderara di Reno Bologna (Italy) tel: +39 051 647 3111 fax: +39 051 647 3126 bonfiglioli@bonfiglioli.com www.bonfiglioli.com

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Helical and bevel-helical gear units C-A-F-S Series - 3

GENERAL INFORMATION HELICAL GEAR UNITS SERIES C 20 22 Mounting position and terminal box 26 HELICAL BEVEL GEAR UNITS SERIES A 166 34 Mounting position and terminal box 174 HELICAL BEVEL GEAR UNITS SERIES A ATEX CONFIGURATION 52 Information about gearbox and gearmotor 329 SHAFT MOUNTED GEAR UNITS SERIES F 330 56 Mounting position and terminal box 337 SINGLE STAGE GEARBOXES SERIES S 464 70 Mounting position and terminal box 471 ELECTRIC MOTORS M6 DC brake motors type BN_FD 527 M7 AC brake motors type BN_FA 531 Revisions Refer to page 572...

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Helical and bevel-helical gear units C-A-F-S Series - 4

GENERAL INFORMATION 1 SYMBOLS AND UNITS OF MEASURE Symbols Units of Description Measure Symbols Units of Description Measure 1 value applies to input shaft 2 value applies to output shaft ©Bonfiglioli Riduttori

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Helical and bevel-helical gear units C-A-F-S Series - 5

The symbol shows the page the information can be sorted from. This symbol refers to the angle the overhung load applies (viewing from drive end). Symbol refers to weight of gearmotors and speed reducers. Figure for gearmotors incorporates the weight of the 4-pole motor and for life lubricated units, where applicable, the weight of the oil. DANGER - WARNING This symbol indicates situations of danger, which if ignored, may result in serious injury to the operator. IMPORTANT This symbol indicates important technical information. Apply to equipment complying with “ATEX” Directive. Gearmotor...

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Helical and bevel-helical gear units C-A-F-S Series - 6

(*) = Refer to the table “Selection of the optimal oil viscosity” for further information about minimum and maximum values of different oil viscosity. For values of ta < -20°C and ts, to > 80 °C, choose (as permitted in the product configuration stage) the sealing type of the most suitable material to the type of application. If needed contact Bonfiglioli Technical Service. (?) (@) = Continuous operation it is not advised if ts and to range is 80°C to 95 °C. provide for greater absorption of the motor. (#) = For full load start-up it is recommended to ramp-up and If needed, contact...

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Helical and bevel-helical gear units C-A-F-S Series - 7

Rated torque Mn2 [Nm] The torque that can be transmitted continuously through the output shaft, with the gear unit operated under a service factor fs = 1. Rating is speed sensitive. Required torque Mr2 [Nm] The torque demand based on application requirement. It must always be equal to or less than torque Mn2 the gearbox under study is rated for. Calculated torque Mc2 [Nm] Computational torque value to be used when selecting the gearbox. It is calculated considering the required torque Mr2 and service factor fs , as per the equation here after: Rated power Pn1 [kW] In the gearbox selection...

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Helical and bevel-helical gear units C-A-F-S Series - 8

Gear units featuring more than 2 reductions and/or a gear ratio greater than i = 45 do not normally require the thermal limit to be checked as in these cases the thermal rating usually exceeds the mechanical rating. (A 1)

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Helical and bevel-helical gear units C-A-F-S Series - 10

GEAR RATIO i The value for the gear ratio is referred to with the letter [ i ] and calculated through the relationship of the input speed n1 to the output speed n2: The gear ratio is usually a decimal number which in this catalogue is truncated at one digit after the comma (no decimals for i > 1000). If interested in knowing the exact value see also chapters “EXACT RATIOS”. ANGULAR VELOCITY Input speed n1 [min-1] The speed is related to the prime mover selected. Catalogue values refer to speed of either single or double speed motors that are common in the industry. If the gearbox is driven...

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Helical and bevel-helical gear units C-A-F-S Series - 11

This factor is the numeric value describing reducer service duty. It takes into consideration, with unavoidable approximation, daily operating conditions, load variations and overloads connected with reducer application. In the graph (A4) below, after selecting proper “daily working hours” column, the service factor is given by intersecting the number of starts per hour and one of the K1, K2 or K3 curves. K_ curves are linked with the service nature (approximately: uniform, medium and heavy) through the acceleration factor of masses K, connected to the ratio between driven masses and...

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Helical and bevel-helical gear units C-A-F-S Series - 12

Life lubricated gearboxes do not require any periodical oil changes. Refer to the User’s Manual available at www.bonfiglioli.com for indications about checking the oil level and its replacement for other types of gearboxes. Do not mix mineral oils with synthetic oils and/or different brands. However, oil level should be checked at regular intervals and topped up as required. Check monthly if unit operates under intermittent duty, more frequently if duty is continuous. 11.1 Selection of the optimal oil viscosity (data relating to Shell Oils) Operating ambient temperature [C° I | Recommended...

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Helical and bevel-helical gear units C-A-F-S Series - 13

11.2 Lubrication for C, A, F, S series gearboxes The inner parts of Bonfiglioli gear units are oil-bath and splash lubricated. Frame sizes C 05...C 41, A 05...A 41, F 10...F 41, S 10...S 40 are supplied by the factory, or by the authorized dealers, already filled with oil. Unless otherwise specified, units size C 51, A 50, F 51, S 50 and larger are usually supplied unlubricated at it will be the customer care to fill them with oil prior to putting them into operation. In both cases, depending on the version, prior to putting the gear unit into operation may need to replace the closed plug...

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Helical and bevel-helical gear units C-A-F-S Series - 14

Some fundamental data are necessary to assist the correct selection of a gearbox or gearmotor. The table below (A7) briefly sums up this information. To simplify selection, fill in the table and send a copy to our Technical Service which will select the most suitable drive unit for your application. (A 8) - Thrust load on input N (*) Distance x1-2 is between force application point and shaft shoulder (if not indicated the force acting at mid-point of the shaft extension will be considered). (**) CW = clockwise; CCW = counterclockwise (***) + = push - = pull

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