NN3021ZTB Cylindrical Roller Bearing Specifications
Bore d (mm)
105
Outer D (mm)
160
Width B (mm)
41
Dynamic rating Cr (kN)
135
Static rating Cor (kN)
161
Grease limit speed (r/min)
6800
Oil limit speed (r/min)
9000
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST NN3021ZTB?
RUIST NN3021ZTB Cylindrical Roller Bearing: bore d = 105 mm, outer diameter D = 160 mm, width/height B = 41 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST NN3021ZTB carry?
Dynamic load rating Cr = 135 kN and static load rating Cor = 161 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST NN3021ZTB typically used?
Cylindrical Roller Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RUIST NN3021ZTB replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 105 mm, OD 160 mm and width 41 mm match ISO dimensions, NN3021ZTB is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.