d - 105 mm

Fw - 118 mm

D - 145 mm

B - 40 mm

C - 40 mm

r min. - 1,1 mm

da min. - 111,5 mm

da max - 116 mm

Da max. - 138,5 mm

db min - 120 mm

ra max. - 1 mm

Weight - 1,91 Kg

Basic dynamic load rating (C) - 157 kN

Basic static load rating (C0) - 306 kN

(Grease) Lubrication Speed - 3900 r/min

(Oil) Lubrication Speed - 4600 r/min

• Model Number:NNU4921K
• Inner Diameter：105mm Outer Diameter：145mm Width：40mm
• Type：Cylindrical Roller Bearings
• Update date：2026-01-13
• Application:generator,agrochemical,Forklift industry,water protection,air shower etc,medical treatment,Vertical machining,Pneumatic Actuator,mobile toilet,X-ray Equipment,building decoration raw materials and accessories
• Similar models:NTN NN4921 NTN NNU4921 CX NN4921K NTN NNU4921KC1NAP4 ISB NNU4921K/SPW33 CX NNU4921K CX NNU4921V CX NN4921 ISO NNU4921V NTN NN4921KC1NAP4
• BEARING POWER International Trading Co.,Ltd. specialize in NNU4921K products，there is large inventory of KOYO NNU4921K . We has been built up long-term cooperation with KOYO company, could make a bulk order of the NNU4921K Which KOYO NNU4921K is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express.Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.

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