d - 2 mm

D - 5 mm

B - 2.3 mm

d₁ - - 2.7 mm

D₂ - - 4.4 mm

r_1,2 - min. - 0.08 mm

d_a - min. - 2.5 mm

d_a - max. - 2.6 mm

D_a - max. - 4.5 mm

r_a - max. - 0.08 mm

Basic dynamic load rating - C - 0.094 kN

Basic static load rating - C₀ - 0.025 kN

Fatigue load limit - P_u - 0.001 kN

Reference speed - 200000 r/min

Limiting speed - 100000 r/min

Calculation factor - k_r - 0.02

Calculation factor - f₀ - 6.5

Mass bearing - 0.0002 kg

• Model Number:W 638/2-2Z
• Inner Diameter：5mm Outer Diameter：2mm Width：2,3mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-12
• Application:sterilizers,noise reduction equipment,standing experimental equipment,Low-voltage electrical equipment,Automobile,Logistics Equipment,fruit and vegetable processing,Rolling mill,Gripper Swing,hinge industry,surgical instruments
• Similar models:ISB 63802 ZEN 638-2Z SKF W638-2RZ SKF W638/3-2RS1 ZEN S63800-2Z NSK 638DD SKF W638/3R-2Z SKF W63806-2Z SKF W63801-2Z SKF W638/2.5-2Z
• BEARING POWER International Trading Co.,Ltd. specialize in W638/2-2Z products，there is large inventory of SKF W 638/2-2Z . We has been built up long-term cooperation with SKF company, could make a bulk order of the W 638/2-2Z Which SKF W638/2-2Z 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
  2312SK	60	130	46	NTN	Self-Aligning Ball Bearings
  2788/2733	38,1	75,2602	23,8125	AST	Tapered Roller Bearings
  29236 M	180	250	42	ISB	Thrust Roller Bearings
  2LA-BNS012LLBG/GNP42	60	95	18	NTN	Angular Contact Ball Bearings
  6214-ZZ	70	125	24	CYSD	Deep Groove Ball Bearings
  687 VV	7	14	5	NSK	Deep Groove Ball Bearings
  7013 A-UD	65	100	36	CX	Angular Contact Ball Bearings
  89308	40,000	78,000	22,000	NTN	Thrust Ball Bearings
  BCH68	9,525	15,875	12,7	INA	Needle Roller Bearings
  CSCC080	203,2	222,25	9,525	INA	Deep Groove Ball Bearings
  GEP 340 FS	480	340	243	SKF	Plain Bearings
  HH224335/HH224310	101.600	212.725	66.675	NACHI	Tapered Roller Bearings
  JM716648/JM716610	85	130	30	Timken	Tapered Roller Bearings
  K60X68X25	60	68		KOYO	Needle Roller Bearings
  M-1381	20,638	26,988	12,7	Timken	Needle Roller Bearings
  UKFCX06	25,4			KOYO	Bearing Units
  4455	5.1250	7.3750		Andrews	THRUST BALL BEARINGS
  H-48-LW	.8750	1.5000	.8750	RBC	NEEDLE BEARINGS
  SUPER-8-OPN	.5000	.8750	1.2500	Thomson	EXTRA CAPACITY LINEAR RECIRCULATING BALL BEARINGS
  L30	30	62	16	SKF	MAGNETO BEARINGS