d - 55 mm

D - 120 mm

B - 29 mm

C - 29 mm

ra1 max. - 1 mm

Angle (α) - 25 °

a - 40 mm

r min. - 2 mm

r1 min. - 1 mm

2B - 58 mm

da min. - 65 mm

ra max. - 2 mm

Db max - 114,5 mm

Weight - 2,78 Kg

Basic dynamic load rating (C) - 139 kN

Basic static load rating (C0) - 123 kN

(Grease) Lubrication Speed - 5 100 r/min

(Oil) Lubrication Speed - 6 800 r/min

• Model Number: 7311DB
• Inner Diameter：55mm Outer Diameter：120mm Width：29mm
• Type：Angular Contact Ball Bearings
• Update date：2025-12-17
• Application:electrostatic protection,roller lathe,other CNC,top industry,linear drive,Material handling equipment,air shower etc,CNC,plastic molding,Industrial,Surveying Surveying Instruments
• Similar models:CX 7311B-UO NACHI 7311DB CYSD 7311DB NTN 7311DF NSK 7311BEA SNR 7311BGA NTN 7311 CX 7311C NACHI 7311 SKF 7311BEGAM
• BEARING POWER International Trading Co.,Ltd. specialize in 7311DB products，there is large inventory of NTN 7311DB . We has been built up long-term cooperation with NTN company, could make a bulk order of the 7311DB Which NTN 7311DB 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
  1621	12,7	34,925	11,112	CYSD	Deep Groove Ball Bearings
  22324 KCW33+H2324	120	260	86	CX	Spherical Roller Bearings
  23134W33	170	280	88	ISO	Spherical Roller Bearings
  4207-2RS	35	72	23	ISO	Deep Groove Ball Bearings
  32315BC	75	160	58	SNR	Tapered Roller Bearings
  52234-MP	150	240	97	NKE	Thrust Ball Bearings
  53216	80	115		ISO	Thrust Ball Bearings
  AST11 F10070	10	12		AST	Plain Bearings
  DE4408	220,000	309,500	76,000	NTN	Angular Contact Ball Bearings
  HX85 /S/NS 7CE1	85	130	22	SNFA	Angular Contact Ball Bearings
  NN3940MBKR	200	259	60	NSK	Cylindrical Roller Bearings
  R710-1	710	920	110	NSK	Cylindrical Roller Bearings
  RNA4848	265	300	60	NSK	Needle Roller Bearings
  SL04-5008NR	40	68	38	NTN	Cylindrical Roller Bearings
  303KDD	17	47	14	FAF	DEEP GROOVE BALL BEARINGS
  RSL183009	45		23	INA	CYLINDRICAL ROLLER BEARING
  HM74T			45	SKF	WITHDRAWAL NUTS
  KF100ARO	10.0000	11.5000	.7500	KAYDON	ANGULAR CONTACT BALL BEARINGS
  R2A.2RS	.1250	.5000	.1719	SKF	DEEP GROOVE BALL BEARINGS
  307-ZZ	35	80	21	CONSOLIDATED	DEEP GROOVE BALL BEARINGS