Linear Bearings

Contact Now

Bearings housed in carriages and tables can ride on round shafts or square profile rails. Here’s a look at the advantages of each when an application demands guided linear motion.”
Engineers faced with a linear-motion application often turn to pre-engineered linear bearings and guides. But linear guides come in two basic shapes – round and square – and designers often struggle with which type to use. Square or profile rails once cost significantly more than round because the former need extensive grinding that is inherent to the design. But recent manufacturing advances and economies of scale let square rails now compete with round in a broad range of applications.

The criteria for choosing one over the other are no different than choosing any other machine component: define system objectives, then consider factors such as load capacity, stiffness, accuracy, smoothness, size, and overall costs. The best place to start is to look at the fundamental qualities of each type of guide.

Bearing Number Bore Dia Outer DIa Width Size
AST LBE 40 UU AJ linear bearings Open 29536 80 mm Without Snap Ring
AST LBE 8 AJ linear bearings AST LBE 8 AJ 1 pcs Negotiable
AST LBE 40 AJ linear bearings 4012802334685 0.3 mm Round Open
INA KTSOS25-PP-AS linear bearings 64 mm Separable Outer Ring Maximum of +120 C0
INA KH40-PP linear bearings Dry 1.65, Periodic L Dry -40 to +392 31 mm Lead Free
Samick CLB14UU linear bearings 3.1493 in Max 250° 737464 1.2344 in
Samick CLB20 linear bearings Uncoated Chrome Steel 053893275383 37431
Samick LMEKP20 linear bearings Carbon Steel Left Hand 0.04 kg 8 mm
16 mm x 26 mm x 24,9 mm Samick LME16UUOP linear bearings 0.010 in Labyrinth 0.6250 in Guardian® Small
25 mm x 40 mm x 44,1 mm Samick LME25UU linear bearings 0.8750 in Steel Hex Crowned
12 mm x 22 mm x 22,9 mm Samick LME12OP linear bearings Left Hand Male Threaded Commercial 0.5000 in
10 mm x 19 mm x 22 mm Samick LM10UUAJ linear bearings Heavy Duty Powder Coat Open 2.0400 in