Specifications:
The document describes a multi-stage, closed spur gear designed for use with motors. It features a single gear with a ball-bearing ingoing shaft, utilizing two bearings placed back-to-back, and is lubricated with lifetime grease. The housing is machined from solid aluminum, allowing for user-defined installation and mounting from all accessible sides. The tooth system technology includes individually guided gear-pinion combinations with an ingoing stage featuring oblique teeth and a ball-bearing end shaft.

Options:
The gear offers options for planet gears.

Loading Capacity:
- Maximum radial force: 400 N
- Maximum axial force: 40 N
- Maximum input speed: 5000 rpm
- Temperature range: -20°C to +40°C

Mounting:
- Shaft diameter: 14 mm
- Weight: 2.12 kg (2-stage), 2.6 kg (4-stage)
- Standard mounting part: front side

Translations and Stages:
The document provides a table of translations (i), stages, and torque (M) values for different configurations:
- 5 i, 2 stages, 10 Nm, 0.9
- 11 i, 2 stages, 23 Nm, 0.9
- 17.9 i, 2 stages, 23 Nm, 0.9
- 21.6 i, 2 stages, 23 Nm, 0.9
- 26 i, 3 stages, 30 Nm, 0.85
- 30 i, 3 stages, 30 Nm, 0.85
- 42 i, 3 stages, 30 Nm, 0.85
- 51 i, 3 stages, 30 Nm, 0.85
- 98.6 i, 4 stages, 30 Nm, 0.81
- 120 i, 4 stages, 30 Nm, 0.81
- 145 i, 4 stages, 30 Nm, 0.81
- 177 i, 4 stages, 30 Nm, 0.81
- 215 i, 4 stages, 30 Nm, 0.81
- 260 i, 4 stages, 30 Nm, 0.81

Dimensions:
The document mentions dimensions but does not provide specific measurements.