681X Deep Groove Ball Bearing Specifications
Bore d (mm)
1.5
Outer D (mm)
4
Width B (mm)
1.2
Dynamic rating Cr (kN)
0.124
Static rating Cor (kN)
0.033
Grease limit speed (r/min)
100000
Oil limit speed (r/min)
120000
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 681X?
RUIST 681X Deep Groove Ball Bearing: bore d = 1.5 mm, outer diameter D = 4 mm, width/height B = 1.2 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 681X carry?
Dynamic load rating Cr = 0.124 kN and static load rating Cor = 0.033 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 681X typically used?
Deep Groove Ball Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RUIST 681X replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 1.5 mm, OD 4 mm and width 1.2 mm match ISO dimensions, 681X is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.