Worm Gear Series - Supplement Worm Gear Series Supplement

BONFIGLIOLI RIDUnORI Product Features Worm Gear Series 1) - Wormshaft from case hardened alloy steel with ground finished tooth flank. 2) - Shell-casted phosphor bronze gearwheels. 3) - Output shaft bearings are suitably rated for substancial shaft loading. 4) - Motor larger conduit box 5) - Motor improved ventilation 1) - Wormshaft from hardened steel, ground finished on tooth profile. 2) - Through holes facilitate discharge of water after wash-down 4) - Vented side cover adjusts to any mounting position (patent pending). 5) - Numerous motor options. Compact style also available. 1) - Wormshaft...

This catalog is a supplement to the standard red Bonfiglioli metric catalogs. It provides for easy speed reducer/gearmotor selection using North American units (such as horsepower and lb•in.). When evaluating an application, it is recommended that final selections be reviewed by Bonfiglioli personnel. As this is a supplement, refer to the metric catalogs (1847 R4) for more detail in regards to each gearbox and gearmotor. ELECTRIC MOTORS DC BRAKE MOTORS TYPE BN_FD . . . . 55 AC BRAKE MOTORS TYPE BN_FA . . . . 59 BRAKE RELEASE SYSTEMS. . . . . . . . 61 COMPACT MOTOR RATING CHARTS. . . 66 IEC MOTOR...

1.0 GENERAL INFORMATION 1.1 SYMBOLS AND UNITS Symb. U.m. Description Ac [lbs] Calculated thrust load [lbs] Rated thrust load - Adjusting power factor - Service factor - Thermal correction factor - Transmission ratio - Intermittence [Ib-ft2] Load moment of inertia [Ib-ft2] Mass moment of inertia for motor [Ib-ft2] Mass moment of inertia for gearbox - Acceleration factor of masses - Radial load stress factor [lb-in] Brake torque [lb-in] Torque [lb-in] Calculated torque [lb-in] Speed reducer rated torque [lb-in] Torque required [rpm] Speed [hp] Power [hp] Calculated power [hp] Motor rated power

1.2 OUTPUT TORQUENominal output torque Torque transmitted at output shaft under uniform load, referred to input speed ni and corresponding output speed n2. It is calculated according to service factor S.F. = 1. The value indicates the speed reducer thermal limit and corresponds to the power transmission capacity under continuous duty at an ambient temperature of 20°C[70°F] without using a supplementary cooling system. For short operating periods with sufficiently long pauses to allow the unit to cool, thermal capacity does not need to be taken into consideration. For ambient temperature different...

1.6 MASS MOMENT OF INERTIA Jr Values for the moment of inertia specified in the catalogue refer to gear unit input shaft. They are therefore related to motor speed, in the case of direct motor mounting. 1.7 SERVICE FACTOR S.F. 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 (A2) below, after selecting proper “daily working hours” column, the service factor is given by intersecting the number of starts per hour...

CONVEYORS - GENERAL PURPOSE includes Apron, Assembly, Belt, Bucket, Chain, Flight, Oven and Screw Uniformly Loaded or Fed 1.25 Heavy Duty - Not Uniformly Fed 1.50 Severe Duty - Reciprocating or Shaker 2.00 CRANES Dry Dock Main Hoist 2.50 Trolley Drive Gantry Drive 3.00 Mill Duty Main Hoist 3.50 Cutter Head Drives 2.00 Plastics Variable Speed Drive 1.50 Fixed Speed Drive 1.75 Rubber Continuous Screw Operation 1.75 Intermittent Screw Operation 1.75 FOOD INDUSTRY Cereal Cooker 1.25 LUMBER INDUSTRY Barkers Spindle Feed 1.50 Main or Heavy Duty 1.50 Log Hauls...

Planer Tilting Hoists 1.50 Rolls - Live-off brg. - Roll Cases 1.75 Veneer Lathe Drives 1.50 METAL MILLS Draw Bench Carriage and Main Drive 1.50 Wire Winding Machine 1.50 METAL STRIP PROCESSING MACHINERY Bridles 1.50 MILLS, ROTARY TYPE Ball & Rod Spur Ring Gear 2.00 Helical Ring Gear 1.50 PAPER MILLS Agitator (Mixer) 1.50 Agitator for Pure Liquors 1.25 Conveyors Chip, Bark, Chemical 1.25 (includes Lump breaker, dandy roll, wire turning, and return rolls) Jordan 1.50 Presses - Felt & Suction 1.25 Reel (Surface Type) 1.25 Wind and Unwind Stand 1.25 Winders...

Reciprocating Single Acting, 3 or more cylinders 1.50 Double Acting, 2 or more cylinders 1.50 RUBBER INDUSTRY Intensive Internal Mixers Batch Mixers 1.75 Mixing Mill 2 smooth rolls 1.50 1 or 2 corrugated rolls Batch Drop Mill - 2 smooth rolls 1.50 Cracker - 2 corrugated rolls 2.00 Holding, Feed & Blend Mill - 2 rolls 1.25 SAND MULLER SEWAGE DISPOSAL 1.50 Slow or Rapid Mixers 1.50 Rotary - Stone or Gravel 1.50 Traveling Water Intake 1.25 SUGAR INDUSTRY Beet Slicer 2.00 Recommended procedure for correct selection of the drive unit: Selecting a gearmotor A) Determine...

Next, according to output speed n2, select a gearmotor having a calculated safety factor S higher than or equal to service factor S.F. The gearmotor selection charts features combinations with 2, 4 and 6 pole motors. If motors with different speed shall be used, refer to the selection procedure for speed reducers and choose the most suitable gear unit. For applications such as hoisting and travelling, contact our Technical Service. Selecting a speed reducer with a motor adapter A) Determine service factor S.F. B) Assuming the required output torque for the application Tr2 is known, the calculated...

suitable protective products before mounting to avoid oxidation and, as a result, seizure of parts. E) Coupling to the speed reducer output hollow shaft (tolerance G7) is usually effected with shafts machined to h6 tolerance. If the type of application requires it, coupling with a slight interference (G7-j6) is possible. F) Before starting up the machine, make sure that oil level is correct for the actual mounting position, and that viscosity is suitable for the specific duty. 1.11 STORAGE Observe the following instructions to ensure correct storage of products: A) Do not store outdoors, in areas...