Manufacturer: NSK 
Type: LINEAR GUIDEWAY BLOCK
Model: NAH20EM Z

Size: 20 mm
Dimensions
Total Height H: 30 mm
Block Width W: 63 mm
Block Length L: 69.8 mm
Block Height K: 25 mm
E: 5 mm
B: 53 mm
J: 40 mm
Interchangeable ball slide model code: NAH
Ball slide shape code: EM
Preload: Z, Slight preload
Block Type:  Standard, Flange Type
Load Type: high load
Basic Load Ratings:
Dynamic C: 23700 N
Static C₀: 32500 N
Allowable Static Moment:
X axis M_RO: 219 Nm
Y axis M_YO: 185 Nm
Z axis M_PO: 155 Nm