Continuous Generating Gear Grinding Machine RZ 260 4.0

From automotive ring-gears to gears for medium-sized trucks

The RZ 260 4.0 gear grinding machine covers the largest range of workpieces for the automotive industry. This includes all gears for car transmissions and gears of medium-sized trucks, ranging in diameter from 0 to 260 mm, and from module 0.5 to 5 mm.

Constant High Performance

The RZ 260’s overriding design principle is based on its dual spindle technology, with all axes movements and routines being uncompromisingly executed in parallel, the short reaction times of all spindles, and the high cutting speeds.

The swivable C-dressing axis allows applying all of Reishauer’s dressing technologies such as line dressing, dressing with multi-rip full profile rolls and topological dressing.

Short set-up times highlight the flexibility of the machine. Apart from disk-type workpieces, this machine equally handles shaft-type workpieces with its optional tailstock. The operating philosophy is identical to that of the other two types machines of the RZx60 family. As a result, operators that are familiar with the RZ 60 4.0 and RZ 160 4.0 can immediately, and productively, operate the RZ 260 4.0 machine.

Due to its compact design, and the fact that it comes fully equipped, it can be easily integrated into existing production lines.

Last but not least: hundreds of RZ 260 machines that unflaggingly generate income for our customers are the best proof of the performance level of this machine.

Working Range
Given values that may differ can be verified upon request.
Workpiece diameter
0 – 262 mm
Module range
0.5 – 5.0 mm
Swivel angle (grinding head)
+/- 48°
Grinding stroke (max.)
180 mm
Shaft length (max.)
490 mm
Workpiece rpm (max.)
1600 min⁻¹
Workpiece weight (incl. workholding)
50 kg
Operating speed (max.)
100 m/s
Grinding wheel outside diameter (max.)
275 mm
Grinding wheel width
125 / 160 mm
Diameter of dressing tools
123 / 140 mm
Dimensions (width x depth x height)
2880 x 2310 x 2920 mm
Machine weight (incl. W-axis)
9600 kg
Hardware Options (Extract)
Additional workspindle (C1- & C2-Axis)
Swivable dressing unit (C4-axis)
CNC tailstocks (W1- & W2-axis)
Profile grinding head for small grinding wheels
Onboard gear measuring
Technology Options (Extract)
Polish grinding
Topological grinding (Twist Control Grinding)
Line dressing
Grinding of tapered gears (beveloid gears)
Grinding of non-involute gears
Profile grinding
Integrated oil spinning off
Reishauer ECO-Mode
Siemens Sinumerik 840D Solution Line
Reishauer Precision Drive
Reishauer operating software
  • Low Noise Shifting reduces the noise generation in transmissions
  • Polish grinding improves the performance of transmissions
  • Twist Control Grinding allows deliberate modification of contact patterns of gear teeth
  • Generating gear grinding of asymmetrical designs
  • High speed grinding at 100 m/s reduces grinding times and the risk of grinding burns
  • Line dressing offers highest flexibility for grinding prototype gears
  • Grinding of beveloid gears widens the machines field of application
  • Profile grinding for grinding gear set-ups with interfering contours