d - 55 mm

D - 120 mm

B - 29 mm

D₁ - - 100.3 mm

F - 70.5 mm

r_1,2 - min. - 2 mm

r_3,4 - min. - 2 mm

s - 2 mm

d_a - min. - 65 mm

d_a - max. - 68 mm

d_b - min. - 73 mm

D_a - max. - 109.2 mm

r_a - max. - 2 mm

r_b - max. - 2 mm

Basic dynamic load rating - C - 156 kN

Basic static load rating - C₀ - 143 kN

Fatigue load limit - P_u - 18.6 kN

Reference speed - 6000 r/min

Limiting speed - 7000 r/min

Calculation factor - k_r - 0.15

Mass bearing - 1.719 kg

• Model Number: NU 311 ECM
• Inner Diameter：120mm Outer Diameter：55mm Width：29mm
• Type：Thrust Ball Bearings
• Update date：2025-12-17
• Application:animal anatomy,ultra-quiet generators,auto tools,nail products,air conditioning tools,ignition system,motor,large agricultural machinery,E Beauty,other CNC,extruder
• Similar models:SKF NU311ECP ISB 51311 KOYO 53311 ISO 52311 SKF NJ2311ECP CX 52311 ISO 53311 FAG 52311 NACHI 51311 SKF NU311ECJ
• BEARING POWER International Trading Co.,Ltd. specialize in NU311ECM products，there is large inventory of SKF NU 311 ECM . We has been built up long-term cooperation with SKF company, could make a bulk order of the NU 311 ECM Which SKF NU311ECM 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
  02476X/02419	31,987	66,987	20,5	Timken	Tapered Roller Bearings
  23172 K	360	600	192	ISB	Spherical Roller Bearings
  51213	65	100		CX	Thrust Ball Bearings
  7218CDF	90	160	30	NACHI	Angular Contact Ball Bearings
  7222DB	110	200	38	NTN	Angular Contact Ball Bearings
  7934DB	170	230	28	NTN	Angular Contact Ball Bearings
  ER212-36	57,15	110		AST	Bearing Units
  ESFCE208	40			SNR	Bearing Units
  KLM13	13	23	32	NTN	Linear Bearings
  NK55/25R	55	68	25	NTN	Needle Roller Bearings
  NTH-2448	38,15	75,44	6,35	KOYO	Thrust Roller Bearings
  RLS 6	47,625	19,05	14,288	SKF	Deep Groove Ball Bearings
  SMF63-2Z	3	6	2,5	ZEN	Deep Groove Ball Bearings
  C1922HCUL	110	150	20	Barden	ANGULAR CONTACT BALL BEARINGS
  SN619	85		120	SKF	PILLOW BLOCKS
  5204	20	1.8500	.6690	Sealmaster	PILLOW BLOCKS
  R-1970ZZ	7	19	6	NMB	DEEP GROOVE BALL BEARINGS
  NF221	105	190	36	SKF	CYLINDRICAL ROLLER BEARINGS
  MF-72-ZZ	2	7	3	CONSOLIDATED	DEEP GROOVE BALL BEARINGS
  89438			38	CONSOLIDATED	THRUST ROLLER BEARINGS