SIGMA Bearings

Contact Now

SIGMA Bearing is a machine element that constrains relative motion to only the desired motion, and reduces friction between moving parts. The design of the bearing may, for example, provide for free linear movement of the moving part or for free rotation around a fixed axis; or, it may prevent a motion by controlling the vectors of normal forces that bear on the moving parts. Most bearings facilitate the desired motion by minimizing friction. Bearings are classified broadly according to the type of operation, the motions allowed, or to the directions of the loads (forces) applied to the parts.


Rotary bearings hold rotating components such as shafts or axles within mechanical systems, and transfer axial and radial loads from the source of the load to the structure supporting it. The simplest form of bearing, the plain bearing, consists of a shaft rotating in a hole. Lubrication is used to reduce friction. In the ball bearing and roller bearing, to reduce sliding friction, rolling elements such as rollers or balls with a circular cross-section are located between the races or journals of the bearing assembly. A wide variety of bearing designs exists to allow the demands of the application to be correctly met for maximum efficiency, reliability, durability and performance.


25 mm x 62 mm x 24 mm SIGMA NJ 2305 cylindrical roller bearings

Max Life Cage Set Screw

25 mm x 52 mm x 15 mm SIGMA NU 205 cylindrical roller bearings

Std Retainer Rogersville, TN
782475789870 Steel

65 mm x 120 mm x 23 mm SIGMA 20313 K-TVP-C3 spherical roller bearings

Class 10 2.0000 in
Round Rogersville, TN

35 mm x 72 mm x 17 mm SIGMA NUP 207 cylindrical roller bearings

Low 782475119837
Steel 5500 rpm

160 mm x 340 mm x 114 mm SIGMA NJG 2332 VH cylindrical roller bearings

6 mm 110 mm
1 800 min-1 80 mm

114,3 mm x 203,2 mm x 33,3375 mm SIGMA QJL 4.1/2 angular contact ball bearings

206 Series Normal Duty
Wide Slot Take-Up Class 10

100 mm x 215 mm x 73 mm SIGMA 2320 M self aligning ball bearings

Triple Lip No Coating

12 mm x 35 mm x 9,3 mm SIGMA GE 12 AX plain bearings

1350   1459.450 kg
PLC 512-50   980 mm

30 mm x 62 mm x 16 mm SIGMA 1206 self aligning ball bearings

203 Series 7500 rpm
Setscrew Ball Bearin Std Retainer

85,725 mm x 190,5 mm x 39,69 mm SIGMA QJM 3.3/8 angular contact ball bearings

Steel 209 Series
Steel 45.0000 in