1211K Self-Aligning Ball Bearing Specifications
Bore d (mm)
55
Outer D (mm)
100
Width B (mm)
21
Dynamic rating Cr (kN)
10.6
Static rating Cor (kN)
6300
Grease limit speed (r/min)
7500
Oil limit speed (r/min)
1211
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 1211K?
RUIST 1211K Self-Aligning Ball Bearing: bore d = 55 mm, outer diameter D = 100 mm, width/height B = 21 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 1211K carry?
Dynamic load rating Cr = 10.6 kN and static load rating Cor = 6300 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 1211K 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 1211K replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 55 mm, OD 100 mm and width 21 mm match ISO dimensions, 1211K is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.