JB-4C Precision roughness meterDetailed product description：

Product Introduction:
The JB-4C precision roughness meter is a high-precision stylus type surface roughness measuring instrument that can test the roughness of various parts such as flat surfaces, inclined surfaces, outer cylindrical surfaces, inner hole surfaces, deep groove surfaces, circular arc surfaces, and spherical surfaces, and achieve multiple parameter measurements of surface roughness. The instrument can be conveniently used for measuring the roughness of bearing raceway.
The JB-4C precision roughness meter is equipped with a computer and specialized measurement software. It uses advanced noise free mechanical positioning devices to select different positions of the measured parts, set various measurement lengths for automatic measurement, and evaluate up to 3000 sampled data points within the section. All measurement data and curves can be displayed on the screen or printed out, so they are widely used in various industries such as automotive accessories, machinery, mold processing, scientific research institutions, and colleges and universities.
The JB-4C precision roughness tester meets the requirements of national standards GB/T3505-2000, GB/T6062-2001, GB/T10610-1998, as well as international standards ISO5436 and ISO11562.

Surface roughness meter
Technical parameters:

model	JB-4C
test parameters	Ra, Rz, RS, RSm, Rp, Rv, Rq, Rt, Rmax, D, Rmr, etc
Range of roughness measurement	Ra 0.01 - 10 μm
Sampling length	L: 0.08 ,0.25, 0.8, 2.5 mm
measure length	Ln: 1L, 2L, 3L, 4L, 5L selectable
evaluation length	0.08, 0.25, 0.8, 2.5mm
resolution	0.001 μm
indication error	± 5 %
Measure the maximum height of the workpiece	300mm
Touchpin	Standard height<8mm Small hole type Pin radius: 2um, measuring force: 4 mN
Movement speed	0.5 mm/sec
Linear region	Vertical 600 um
Axial measurement range	40 mm
filter	Gaussian filter, ISO 2CR filter
Small hole measurement range	≥ф5 mm
Adjustable Workbench	Rotation angle: ± 10 degrees Swing range: ± 10 degrees X-Y movement range: 15 mm
Dimensions of the inner and outer rings of the bearing	Maximum outer diameter of inner ring: 280mm Minimum aperture of outer ring: 12mm Thickness: ≤ 160 mm
operating system	Win98/2000/XP
Standard accessories, attachments	Pillars and marble bases Controller driving device sensor Universal adjustable workbench V-shaped platform Standard type stylus

JB-4C precision roughness tester