d - 2 mm

D - 5 mm

B - 2.3 mm

d₁ - - 2.7 mm

D₂ - - 4.4 mm

D₃ - 6.1 mm

C - 0.6 mm

r_1,2 - min. - 0.08 mm

d_a - min. - 2.52 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 - 0.00025 kg

• Model Number: W 638/2 R-2Z
• Inner Diameter：5mm Outer Diameter：2mm Width：2,3mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-11
• Application:suction nozzle,Industrial,mechanical annex,hydraulic actuator,tray industry,Cylinder Micro,Forklift industry,food sterilization,Liposuction device,coupling type,respirator
• Similar models:SKF W638/4X-2Z SKF W63801-2Z ISO 63801 ZEN 638 ZEN 63800-2Z CX 63802-2RS ZEN F63800-2Z ISO 63800 SKF W63803R ISO 63801-2RS
• BEARING POWER International Trading Co.,Ltd. specialize in W638/2R-2Z products，there is large inventory of SKF W 638/2 R-2Z . We has been built up long-term cooperation with SKF company, could make a bulk order of the W 638/2 R-2Z Which SKF W638/2R-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
  2203	17	40	16	AST	Self-Aligning Ball Bearings
  52317	88	150	87	ISO	Thrust Ball Bearings
  62307-2RS	35	80	31	CRAFT	Deep Groove Ball Bearings
  74500/74850	127.000	215.900	47.625	NACHI	Tapered Roller Bearings
  HM911249/HM911210	61,912	130,175	36,512	Timken	Tapered Roller Bearings
  NCS1412	22,225	34,925	19,05	INA	Needle Roller Bearings
  NCF2915-V	75	97,6	19	NKE	Cylindrical Roller Bearings
  RNAO 25x35x26 - ZW	25	29	26	NBS	Needle Roller Bearings
  RNH1017	85,000	118,500	22,000	NTN	Cylindrical Roller Bearings
  SC0788FFX2NR	35	80	24	NTN	Deep Groove Ball Bearings
  SE 6202 ZZSTMG3	15	35	11	KOYO	Deep Groove Ball Bearings
  SY 45 TF	45			SKF	Bearing Units
  FT-015	.5000	.8750		Andrews	THRUST BALL BEARINGS
  1309F	45	100	25	FED	DEEP GROOVE BALL BEARINGS
  32007X	35	62	18	CONSOLIDATED	TAPERED ROLLER BEARINGS
  241/710	710	1150	438	CONSOLIDATED	SPHERICAL ROLLER BEARINGS
  4427	2.1250	3.3125		CONSOLIDATED	THRUST BALL BEARINGS
  70x110x13mm	70	110	13	CONSOLIDATED	OIL SEALS
  93512	1.0000	1.3750	.7500	CONSOLIDATED	JOURNAL ROLLER ASSEMBLIES
  TER-109V	134	101.29	28	CONSOLIDATED	TRIPLE RING TACONITE SEALS FOR SAF TYPE PILLOW BLOCKS