6 Project Planning for Optional Accessories

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1 Mounting flange on output shaft Project Planning for Optional Accessories.1 Mounting flange on output shaft Usage Gear units can be supplied with an EBD mounting flange on the LSS (option "/EF22" or "/EF21"). Counterflange for flange mounted gear units Gear units can be supplied with a mounting flange on the LSS. Dependent on the bearing configuration, the two flange types are called "Mounting flange" "EBD mounting flange" Basically, both flange types are possible for all gear unit designs and mounting positions: MC.L.. MC.V.. MC.E.. Mounting flange Solid shaft LSS Hollow shaft LSS 511AXX 38 Catalog Mixer and Agitator Drives of the MC.. Series

2 Mounting flange on output shaft EBD mounting flange Solid shaft LSS Hollow shaft LSS 59355AXX The counterflange must have the following characteristics: Stiff and torsionally rigid, taking into consideration gear unit weight motor weight the torque that has to be transmitted additional forces acting on the gear unit from the customer machine (e.g. axial forces from and towards gear unit from a mixing process) Horizontal Plain Vibration isolating, that means no vibrations are to be transmitted from close-by machines and elements No resonance vibrations should be created A bore with H7 fitting matching the centering shoulder of the gear unit flange according to the dimension drawing The mounting surface of mounting flange and counter flange must be absolutely free of grease or oil and from other contamination (e.g. small textile particles, dust,...). The alignment of the gear unit LSS in relation to the counterflange has to be as accurate as possible. This has an effect on the lifetime of bearing, shafts and coupling. Allowable misalignments for the coupling on the LSS can be seen in chapter 5.2 or in a separate coupling manual. Following bolts of the 8.8 class should be used (tensile strength 40 N/mm 2 ) Gear unit size MC.. Mounting flange EBD mounting flange 02 8 x M1 1 x M x M1 1 x M x M1 1 x M x M20 1 x M1 0 8 x M20 1 x M x M20 1 x M x M24 1 x M x M24 1 x M24 Catalog Mixer and Agitator Drives of the MC.. Series 39

3 EBD sealing systems.2 EBD sealing systems Standard sealing system Two NBR shaft seals on ground bushing for vertical LSS downwards (= M5; shaft position 3). 1 NBR shaft seal for vertical LSS upwards (= M5; shaft position 4) and for other mounting positions. Radial labyrinth. [3] [2] 58295AXX Radial labyrinth [2] Ground bushing [3] Shaft seals Optional sealing systems The following options are pre-defined: Grease nipple and piping for radial labyrinth (extra protection for shaft seals in dusty environments) for foot mounted gear units. Shaft seals made from Viton instead of NBR. Leakage indicator (for sizes 02 and 03) for gear units with vertical LSS pointing downward. 40 Catalog Mixer and Agitator Drives of the MC.. Series

4 EBD sealing systems Drywell Drywell sealing system (for sizes 04 09) for gear units with vertical LSS pointing downward in conjunction with pressure lubrication. The lower bearing is grease lubricated and protected from the oil by a built-in pipe (in white color), also referred to as "Drywell". The oil level is below the upper end of the drywell which means the upper bearings and partly the gearset are pressure lubricated by an oil pump. In case of wear of the LSS seals, no oil can leak from the oil bath to the LSS. [3] [4] [5] [2] 58358AXX Pressure oil lubricated upper bearings and gears [2] Grease lubricated lower bearings [3] Regreasing pipe [4] Old grease outlet [5] Pipe Due to the reduced oil level requirement in the gear unit housing, an additional oil tank may be necessary. This is dependent from gear unit size input speed; input speed range ratio input power selected pump size / pump delivery volume thermal issues For a guideline for using an additional oil tank, refer to chapter.3. Catalog Mixer and Agitator Drives of the MC.. Series 41

5 Project Planning: Drywell - Guideline for using an additional oil tank for.3 Project Planning: Drywell - Guideline for using an additional oil tank for MC..V units Two different selection criteria are important when using an additional oil tank: Low running temperatures High running temperatures Example A 58525AXX Additional oil tank [A] For dimension oil tank please contact SEW-EURODRIVE Selection criteria for low running temperatures Oil type and viscosity Temperature limit when oil heater (+ oil tank!) must be selected Mineral Min. permitted temperature [ C] Oil type and viscosity Temperature limit when oil heater (+ oil tank!) must be selected Synthetic PAO Min. permitted temperature [ C] Catalog Mixer and Agitator Drives of the MC.. Series

6 Project Planning: Drywell - Guideline for using an additional oil tank for Selection table for high running temperatures The following table shows the need for an additional oil tank. The table is based on an input speed of n 1 = min -1. Gear unit size Max. motor power in kw (n 1 = 1500 or 1800 rpm) when gear unit still without extra tank Oil quantity without tank [l] For higher input speeds, please contact SEW-EURODRIVE. Catalog Mixer and Agitator Drives of the MC.. Series 43

7 Motor adapters.4 Motor adapters Motor adapters are available for mounting IEC motor sizes 132 to 315 NEMA motor sizes 213 to 505 The connection dimensions are shown in the section "Dimension drawings for motor adapters" chapters and For other motor sizes, please contact SEW-EURODRIVE. The following figures show the basic structure of the motor adapter. MC.PV.. [2] Motor adapter [2] Coupling 58775AXX 44 Catalog Mixer and Agitator Drives of the MC.. Series

8 Motor adapters MC.RV.. [2] Motor adapter [2] Coupling 58719AXX When selecting a motor, take into account the permitted motor weight, gear unit design and gear unit mounting type according to the following tables: The following applies to all tables: G M = Motor weight G G = Gear unit weight The table only applies to stationary applications. For mobile applications (e.g. travel drives), consult SEW-EURODRIVE. Type / gear unit design Mounting type MC.RV.. MC.PV.. Foot mounted G M 1.5G G G M G G Shaft mounted G M G G G M G G Flange mounted G M G G G M 0.75G G Catalog Mixer and Agitator Drives of the MC.. Series 45

9 Motor adapters Permitted motor mounting Observe the center of gravity distance and the weight of the motor when mounting motors. X F q 54738AXX Center of gravity of the motor These tables only apply to the following correlation of motor size/weight F q and dimension "x". Motor size F q max x IEC NEMA [N] [mm] 132S 213/ M 213/ M 254/ L 254/ M 254/ L 254/ L S M M S M S M L The maximum approved weight of the attached motor F q has to be reduced in a linear manner if the center of gravity distance x is increased. F q max cannot be increased if the center of gravity distance is reduced. Contact SEW-EURODRIVE in the following cases: If you want to retrofit motor adapters with a cooling fan (not for motor sizes 132S and 132M). 4 Catalog Mixer and Agitator Drives of the MC.. Series