d - 640 mm

D - 740 mm

B - 38 mm

C - 38 mm

r min. - 2,1 mm

da min. - 662 mm

Da max. - 714 mm

ra max. - 2 mm

Weight - 26,8 Kg

Basic dynamic load rating (C) - 248 kN

Basic static load rating (C0) - 535 kN

Calculation factor (f0) - 17,9

• Model Number:B640-2
• Inner Diameter：640mm Outer Diameter：740mm Width：38mm
• Type：Deep Groove Ball Bearings
• Update date：2023-03-10
• Application:Laser Devices,orthodontic material,knitted fabrics,other rubber,water protection,Spectrum Products,laser devices,Industrial,Reflective Materials Industrial fabrics,Pest Monitoring,Ball screw
• Similar models:CX 6406ZZ ISO 6403ZZ FBJ 6406-2RS Fersa 6408-2RS CX 6405 NTN 6405 FBJ 6403ZZ CYSD 1640 CX 6406 ISO 6406ZZ
• BEARING POWER International Trading Co.,Ltd. specialize in B640-2 products，there is large inventory of NSK B640-2 . We has been built up long-term cooperation with NSK company, could make a bulk order of the B640-2 Which NSK B640-2 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
  2213K+H313	65	120	31	ISO	Self-Aligning Ball Bearings
  23976 CW33	380	520	106	CX	Spherical Roller Bearings
  62/22	22	50	14	NACHI	Deep Groove Ball Bearings
  6319NK	95	200	45	NACHI	Deep Groove Ball Bearings
  6375/6320	57,15	135,755	53,975	Timken	Tapered Roller Bearings
  644/632B	71,438	136,525	41,275	Timken	Tapered Roller Bearings
  6818ZZ	90	115	13	NTN	Deep Groove Ball Bearings
  7017 CB/HCP4A	130	85	22	SKF	Angular Contact Ball Bearings
  7222-BE-MP	110	200	38	NKE	Angular Contact Ball Bearings
  BS 250 /S 7P62U	50	90	20	SNFA	Thrust Ball Bearings
  CRI-11801	590	780	255	NTN	Tapered Roller Bearings
  E 220 /NS 7CE3	20	47	14	SNFA	Angular Contact Ball Bearings
  HK2526	25	32	26	FBJ	Needle Roller Bearings
  KZK28X35X16	28	35	16	ISO	Needle Roller Bearings
  MF84ZZ	4	8	3	ISO	Deep Groove Ball Bearings
  NKX 70 Z	70	85	40	CX	Complex Bearings
  SR156ZZY05	4,7625	7,9375	2,77876	AST	Deep Groove Ball Bearings
  0-11				SKF	THRUST BALL BEARINGS
  248/1500M	1500	1820	315	CONSOLIDATED	SPHERICAL ROLLER BEARINGS
  PWKRE-40-2RS	18	40	58	CONSOLIDATED	ROLLER CAM FOLLOWERS