GGB is the earliest developed LM guide and is one of the widely used guides. Design with equal 45o contact angle, which makes equal load in vertical upside ,vertical downside, horizontal left and horizontal right four orientations(see fig-1), and it has heavy rated load, good rigidity, high stiffness and strong torque resistance of three directions, so it also calls four direction equal load LM guide.
| Basic Structure of GGB Series |
| Application |
Machining center, NC lathe machine, wire spark machine, portage device, wood machinery, laser machine, precision test instrument, packing machine, food machinery, medical machinery, tool grinding machine, plane grinding machine.
| Quantity: | |
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GGB series
NANJING GONGYI
Basic Structure of GGB Series |
Application |
With its high precision, heavy load, high stability and strong environmental adaptability, the GGB series four-direction equal load LM guide is widely applicable to various high-precision and automated mechanical equipment in multiple industries. It covers core processing equipment, precision testing equipment, and special industrial machinery, with strong universal compatibility and stable operational performance.
Specific applicable equipment includes machining centers, NC lathe machines, wire spark machines, conveying and portage devices, woodworking machinery, laser processing machines, precision testing instruments, packaging machinery, food processing machinery, medical equipment and machinery, tool grinding machines, and surface grinding machines. It can fully meet the high-precision linear motion requirements of industrial processing, precision detection, medical production, food packaging and other diverse scenarios.
Seal Type and Dimension Increase |
Amounting dimension L1increase | ||||
Spec. | Without code | DD | ZZ | KK |
GGB15 | 0 | 4 | 2 | 6 |
GGB16 | 0 | 4 | 2 | 6 |
GGB20 | 0 | 4.8 | 2.4 | 7.2 |
GGB25 | 0 | 5 | 3 | 8 |
GGB30 | 0 | 6 | 3 | 9 |
GGB35 | 0 | 6 | 3 | 9 |
GGB45 | 0 | 8 | 4 | 12 |
GGB55 | 0 | 8 | 4 | 12 |
GGB65 | 0 | 8.6 | 5 | 13.6 |
GGB85 | 0 | 11 | 5 | 16 |
Preload Type and Application |
Recommended preload under different accuracy
Accuracy | Preload type | |||
Grade | P0 | P1 | P | P3 |
2、3、4 | √ | √ | √ | |
5 | √ | √ | √ | |
Recommended preload under different application
Preload type | Application |
P0（0.08—0.1C） | With strong rigidity,impact and vibra- tion condition,normally used for main rails of heavy duty machines. |
P1（0.03—0.05C） | High repeatability positioning accuracy,suspension/ torque load and single LMG,Normally used in precision positioning mechanism and measuring devices. |
P（0—0.02C） | Small impact |
P3 | Transmission machine with low accu- racy. |
Code Rule and Definition |
Ball linear guide code
