Product Catalogue Miniature bevel gearboxes Bevel gearboxes Hypoid gearboxes Worm gearboxes Gearbox motors Special gearboxes ATEX gearboxes Gear sets Service Service Servo gearboxes (precision gearboxes) hypoid gearboxes Hygiene-design gearboxes

11 Servo gearboxes (precision gearboxes) Type LC – Servo bevel gearboxes Gear ratios: i = 1:1 to 4:1 Maximum output torque: 16 Nm 2 gearbox sizes with edge lengths of 035 to 45 mm Suitable for fitting IEC standard motors Low-backlash construction < 10 angular minutes possible Housing made of aluminium Type VC – Servo bevel gearboxes Gear ratios: i = 1:1 to 6:1 Maximum acceleration torque on output: 700 Nm 6 gearbox sizes with edge lengths of 065 to 200 mm Minimised circumferential backlash (optional) Housing made of grey cast iron Bevel gearboxes suitable for fitting servo-motors Non-positive connection...

11.1.1 General Special servo gearboxes have been developed for the requirements of highly dynamic servo-motors. The proven ATEK bevel gearbox and worm gearbox series form the basis for them. The combination of a large number of motor flanges and an insertable, zero-play clamp coupling enables the adaptation to the most servo-motors. Due to the modular system, a later replacement of the motor flange and the coupling half on the motor side is very easy. Servo gearboxes (precision gearboxes)

11.2 Type LC – Servo bevel gearboxes 11.2.1 Features Gear ratios: i = 1:1 to 4:1 Maximum output torque: 16 Nm 2 gearbox sizes with edge lengths of 035 to 45 mm Suitable for fitting IEC standard motors Low-backlash construction < 10 angular minutes possible Housing made of aluminium The L-series miniature bevel gearboxes can be extended by a flange to attach a motor. The example shows the Model C0 Bevel pinion Figure 11.2.3-1; Gearbox sides n2 Figure 11.2.3-2; Shaft designations The order code reflects the customer specifications. Example: Type Gear ratio Fixing side Installation position Housing...

11.2.6 Dimensions The dimensions of the gearboxes are identical with those of the L-type gearboxes The motor-specific adapter flanges are under development. Please enquire gearboxes for your case of application.

11.3.1 General construction The VC gearbox type is based on the proven type V bevel gearboxes. The edge length of the housing is reflected in the gearbox size (example: VC 120 - housing edge length 120 mm). 11.3.2 Toothing VC servo gearboxes have gear sets with high-quality spiral toothing made of hardened carburised steel. A gear set comprises one bevel pinion (small number of teeth / small diameter) and one bevel gear (large number of teeth / large diameter). Gear sets with spiral toothing offer the advantage of very favourable engagement factors (high meshing ratio). Therefore they are predestined...

11.3.8 Efficiency The achievable efficiency depends on rotational speed, torque, installation position, sealing, and lubricant type. With gearboxes having only one gear set, an efficiency of 97% can be achieved. With gearboxes having several gear meshings, an efficiency of 94% can be achieved. The efficiencies specified in the tables relate to the permissible nominal load and are guidance values for run-in gearboxes at operating temperature with standard sealing. 11.3.9 Lubrication (abbreviation code) (Chapter as in “Bevel gearboxes”, chapter 6.2.8) Different conditions for the lubrication of...

Abbreviation: u.r. - upon request

11.3.12 Connection of drive shaft to coupling For torque transmission, a space-saving, zero-play connection in the form of a cone is implemented in the drive shaft. In case of extreme overloads, this non-positive connection is cut, thus preventing damage to the motor-side and gearbox-side elements. After an overload, our service department must be contacted. 11.3.13 Coupling Two congruent coupling halves are positively connected by means of a plastic toothed ring under pretensioning. In case of extreme peak tensions and impact loads (emergency shut-off), a damping action is achieved through a...

11.3 Type VC – Servo bevel gearboxes Fitting dimensions of the servo-motor – gearbox size/flange no. (selection) d [mm] less than or equal to Gearbox size

Servo gearboxes (precision gearboxes) Servo gearboxes (precision gearboxes)

11.3 Type VC – Servo bevel gearboxes 11.3.15 Features Gear ratios: i = 1:1 to 6:1 Maximum acceleration torques up to T2B = 700 Nm 6 gearbox sizes with edge lengths of 065 to 200 mm High efficiency Minimized circumferential backlash (optional) Bevel gearboxes suitable for fitting servo-motors Zero-play three-piece claw coupling 11.3.15.2 Gearbox sides The example shows the Model C0 Motor flange Bevel pinion n1 Figure 11.3.15-3; Gearbox sides Figure 11.3.15-2; Gearbox sides The order code reflects the customer specifications. Example: Type Gear ratio Fixing side Installation position Gearbox side...

11.3.16 Type VC 065 – Servo bevel gearboxes Characteristics Characteristic Spiral-toothed, hardened bevel gears Gear ratio Housing / Flanges Grey cast iron / aluminium Threaded mounting holes On all housing surfaces without flange and on all flanges. Material 1 C45, shaft ends greased Fit with ISO 6 tolerance with parallel keyway: according to DIN 6885 Sheet 1 Hollow shaft Material 1 C45, shafts greased Fit with ISO 7 tolerance with parallel keyway: according to DIN 6885 Sheet 1 Radial shaft seal ring Ambient temperature - 10°C to +90°C. The values of the performance tables are valid for +20°C...

Torques in operating mode S5, dynamic operation Gear ratio i [-] T2N in S5 [Nm] n1max in S5 [rpm] Coupling size Permissible radial force Fr2 and axial force Fa2 on shaft N2 n2 [rpm] T2 [Nm] Inertia moments Coupling J [kgcm2] Gearbox inertia moments/mass Inertia moment J1 related to the fast-rotating shaft (N1) Inertia moment [kgcm2] The mass of the gearbox may deviate depending on the flange size and the gear ratio. Servo gearboxes (precision gearboxes) Servo gearboxes (precision gearboxes)