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 - 2 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:NNU4921
• Inner Diameter：105mm Outer Diameter：145mm Width：40mm
• Type：Cylindrical Roller Bearings
• Update date：2025-12-30
• Application:hydraulic connector,key lock,industrial fans,PVC,shaft milling machine,equipment,medical equipment,electromagnetic clutch,extruder,special broaching machine,Storage Tool
• Similar models:NTN NNU4921K NTN NN4921KC1NAP4 NTN NNU4921KC1NAP4 ISO NN4921 NTN NNU4921 NACHI NNU4921K NSK NNU4921 NTN NN4921C1NAP4 NTN NN4921K FAG NNU4921-S-M-SP
• BEARING POWER International Trading Co.,Ltd. specialize in NNU4921 products，there is large inventory of KOYO NNU4921 . We has been built up long-term cooperation with KOYO company, could make a bulk order of the NNU4921 Which KOYO NNU4921 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.

• Model No.	Inner Diameter	Outer Diameter	Width	Brand	Type
  200KBE031+L	200	340	140	NSK	Tapered Roller Bearings
  234430B	150	225	90	KOYO	Thrust Ball Bearings
  3205	25	52	20.6	KOYO	Angular Contact Ball Bearings
  3NCHAR006	30	55	13	KOYO	Angular Contact Ball Bearings
  61807	35	47	7	CX	Deep Groove Ball Bearings
  AXK 75100	75	100	4	ISO	Needle Roller Bearings
  GEZM 500 ES	196,85	127	190,5	SKF	Plain Bearings
  CRB 60040	600	700	40	ISB	Thrust Roller Bearings
  EX313-40	63,5	140	85,7	SNR	Deep Groove Ball Bearings
  GEZ88ES	88,9	139,7		AST	Plain Bearings
  JLM710949C/10	65	105	24	CX	Tapered Roller Bearings
  K14X19X13	14,000	19,000		NTN	Needle Roller Bearings
  RASE35-N-FA125	35			INA	Bearing Units
  WJ-333916	52.388	61.913		KOYO	Needle Roller Bearings
  NJ1004	20	42	12	FAG	CYLINDRICAL ROLLER BEARINGS
  NUP420	100	250	58	FAG	CYLINDRICAL ROLLER BEARINGS
  NU2212E	60	110	28	SKF	CYLINDRICAL ROLLER BEARINGS
  RNA4826	165		35	SKF	NEEDLE BEARINGS
  ER-38	4.3307	2.3750	1.2500	CONSOLIDATED	BALL BEARING
  KG-300XPO-2RS	30.0000	32.0000	1.0000	CONSOLIDATED	FOUR POINT ANGULAR CONTACT BALL BEARINGS