Type V – Standard bevel gearboxes
- Gear ratios: i = 1:1 up to 6:1
- Maximum output torque: 5400 Nm
- 9 gearbox sizes with edge lengths of 065 up to 350 mm
- Low-backlash design: less than 6 angular minutes possible
- Housing made of grey cast iron or steel
Bevel gearboxes
A bevel gearbox enables alternatively stepping-down or stepping-up. The axles intersect in the gearbox in an angle of 90°. The edge length of the housing is reflected in the gearbox size (example: V 120 – housing edge length 120 mm).
Efficient power converters
Bevel gearboxes are highly precise and powerful torque converters. The high-performance gearboxes cope with today’s high requirements in every respect. They are compact and insensitive to shocks. It is not without reason that they are used worldwide in all industry sectors of machine and plant construction. In everyday language, bevel gearboxes are also known as bevel gears, bevel-gear axle drives, gear drives or step-down / step-up gears.
Product features
- Robust, powerful, compact
- Housing made of grey cast iron or steel
- Spiral-toothed gear sets
- Maintenance-free
Application examples
- Automation
- Transfer gearboxes
- Packaging machines
- Linear technology
- Machine and plant construction
Type VS – Type V with step-up ratio
- Gear ratios: i = 1:1.5 up to 1:2
- Maximum output torque: 1200 Nm
- 7 gearbox sizes with edge lengths of 090 up to 260 mm
- Larger shaft diameter (N2), slowly rotating
- Low-backlash design: less than 10 angular minutes possible
- Housing made of grey cast iron or steel
Type VL – Type V with flange for motor mounting
- Gear ratios: i = 1:1 up to 6:1
- Maximum output torque: 2310 Nm
- 8 gearbox sizes with edge lengths of 065 up to 260 mm
- Low-backlash design: less than 6 angular minutes possible.
- Suitable for the mounting of IEC standard motors
- Drive side with hollow-bored shaft and flange
- Housing made of grey cast iron or steel
Branch-off bevel gearboxes – with additional shafts
- for gear ratios of 1.5:1 to 6:1 with type V
- for gear ratios of 1.5:1 to 2:1 with type VS
- with solid shaft or hollow shaft
- up to 6 shaft ends
Toothing
ATEK bevel 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 for usage with high loads, combined with optimal running smoothness and high transmission accuracy.
Construction types
Due to the modular system, different gearbox construction types can be configured.
The construction types differ in
| Construction type | Number of gear sets | Additional gears |
| A0 to E0 | 1 gear set | |
| F0 to K0 | 1 gear set | + 1 bevel pinion or bevel gear |
| Branch-off gearbox | 1 gear set | + 2–3 bevel pinions / bevel gears |
The construction types differ in type and number of the shafts, the rotational direction of the shafts and their support by bearings.
Example of order code: V 090 1:1 A0 – 1.1 -1000 /0000
Threaded mounting holes
All 6 sides of the gearboxes are machined and may be used as mounting surfaces.
All flanges always have threaded mounting holes.
You have the following available ordering Options:
| Ordering options | Threaded mounting holes are located in the housing surfaces on the gearbox side | Threaded mounting holes are located in the flanges on the gearbox side |
| 0 | – | 3, 5, 6 |
| 1, 2, 3, 4, 5, 6 | 1, 2, 4 | 3, 5, 6 |
| 9 | 1, 2, 4 | 3, 5, 6 |
The standard version has the order code 9.
Example of order code for mounting option 9: V 090 1:1 A0 – 9.1 -1000 /0000
Other mounting options must be enquired.
Installation position
The installation position is defined by the gearbox side directed downwards during operation and will be indicated by the associated numeral.
The gearboxes can be used in all installation positions.
The technically most favourable and thus recommended installation position is the position in which the shafts are horizontal.
These are the installation positions 1 and 2.
Please contact us for consultation if the angle of the gearbox side directed downwards deviates more than 15° from the horizontal position.
For an optimal technical design of the gearboxes, we principally ask to specify the installation position.
Example of order code for installation position 2: V 090 1:1 A0 – 1.2 -1000 /0000
Shaft designation – allocation to the gearbox sides
The fast-rotating shaft has the speed n1 and is identified by N1.
The bevel pinion is located on this shaft.
The slowly rotating shaft has the
speed n2 and is identified by N2.
The bevel gear is located on this shaft.
The gearbox sides are identified by the numerals 1 to 6 (see Figure 4.2.1-1; Gearbox sides)
Preferred direction of rotation
If the clockwise (CW) direction of rotation (viewing direction from shaft end face of the fast-rotating shaft towards the gearbox centre) is selected, a 1 to 2 dB(A) lower noise level is generated.
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.
Lubrication
With the bevel gearboxes, different conditions for the lubrication will arise depending on gearbox size, rotational speed, on-period, temperature, and type of application.
The decisive variable is the circumferential speed of the bevel gear.
Depending thereon, different oil quantities and viscosities will be used.
These will be defined by ATEK based on your ordering details (rotational speed, on-period, and ambient temperature).
| Abbreviation | Explanation | Reference | |
| Letter | B | Oil viscosity 220 | Table 6.2.8‑1 |
| Numeral | 0 | No venting | Table 6.2.8‑2 |
For the abbreviations, refer to the following tables.
Oil viscosity table
| Letter | Viscosity |
| A | 460 |
| B | 220 |
| C | 68 |
| D | Injection lubrication |
| E | Fluid grease |
Depending on the gearbox size, injection lubrication may be necessary in case of high rotational speeds.
In case of very low rotational speeds, lubrication by fluid grease is also possible.
| Numeral | Vent filter |
| 0 | No |
| 1 | Yes |
Vent filter
If venting is required (B1 or C1) the gearboxes will be delivered with a vent filter.
The vent bores will be equipped with screw plugs for transport.
The vent filter will be enclosed as a separate item and must be mounted in the intended position prior to commissioning.
An elbow may be required.
Please adhere to the operating instructions!
The position of the filter will be specified in the order documents.
Please refer to the following table for the position of the filter.
The meaning here, for example: /B1-E4 = oil viscosity 220; vent filter on side 4.
Low-backlash construction
For optimal running, the tooth space in the gear set is manufactured larger than the tooth.
When the direction of rotation is changed, this results in a rotation angle until the counter-rotating tooth flanks contact each other.
This rotation angle is called circumferential backlash.
Circumferential backlash, measuring method
The circumferential backlash is measured after the shaft N1 has been fixed.
A force of around 2% of the nominal torque is applied to the shaft N2 in both rotational directions.
A tooth backlash will result between the two final positions. This can be measured as rotation angle and is indicated in minutes of arc [arcmin].
Circumferential backlash, type
All ATEK bevel gearboxes can be delivered as low-backlash types.
(u.r. = upon request)
| Ordering option | Gear set | 01:02,2 | 3:1, 4:1, 5:1, 6:1 |
| /0000 | Standard | <=30 arcmin | <=30 arcmin |
| /S2 | Standard | <=10 arcmin | <=10 arcmin |
| /S1 | Standard | <=6 arcmin | a.A. |
| /S0 | Special gear set | <=4 arcmin | a.A. |
Abbreviation: u.r.
– upon request