1311TN1 Self-Aligning Ball Bearing Specifications
Bore d (mm)
55
Outer D (mm)
120
Width B (mm)
29
Dynamic rating Cr (kN)
51.5
Static rating Cor (kN)
18
Grease limit speed (r/min)
5000
Oil limit speed (r/min)
6000
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 1311TN1?
RUIST 1311TN1 Self-Aligning Ball Bearing: bore d = 55 mm, outer diameter D = 120 mm, width/height B = 29 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 1311TN1 carry?
Dynamic load rating Cr = 51.5 kN and static load rating Cor = 18 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 1311TN1 typically used?
Self-Aligning Ball Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RUIST 1311TN1 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 55 mm, OD 120 mm and width 29 mm match ISO dimensions, 1311TN1 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.