d - 2.5 mm

D - 6 mm

B - 2.6 mm

d₁ - - 3.7 mm

D₂ - - 5.4 mm

D₃ - 7.1 mm

C - 0.8 mm

r_1,2 - min. - 0.08 mm

d_a - min. - 3.02 mm

r_a - max. - 0.08 mm

Basic dynamic load rating - C - 0.117 kN

Basic static load rating - C₀ - 0.036 kN

Fatigue load limit - P_u - 0.002 kN

Reference speed - 170000 r/min

Limiting speed - 85000 r/min

Calculation factor - k_r - 0.02

Calculation factor - f₀ - 7.1

Mass bearing - 0.00043 kg

• Model Number: W 638/2.5 R-2Z
• Inner Diameter：6mm Outer Diameter：2,5mm Width：2,6mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-17
• Application:Spectrum Products,other lathe,Pump,other processing,marine analysis,pump,Forklift industry,Oral Image,surgical instruments,rehabilitation training equipment,drawing die
• Similar models:KOYO 638 SKF W638/2X-2Z KBC 638ZZ CYSD 1638-2RS SKF W63803-2Z ZEN 63801 FBJ 638ZZ ISO 63801 ISB 638ZZ SKF W63802R
• BEARING POWER International Trading Co.,Ltd. specialize in W638/2.5R-2Z products，there is large inventory of SKF W 638/2.5 R-2Z . We has been built up long-term cooperation with SKF company, could make a bulk order of the W 638/2.5 R-2Z Which SKF W638/2.5R-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
  16036	180	280	31	ISO	Deep Groove Ball Bearings
  239/600-B-K-MB	600	800	150	FAG	Spherical Roller Bearings
  6368	340	710	118	KOYO	Deep Groove Ball Bearings
  7310BGA	50,000	110,000	27,000	SNR	Angular Contact Ball Bearings
  H71922C	110	150	20	AST	Angular Contact Ball Bearings
  M-11101	17,462	22,225	15,88	NSK	Needle Roller Bearings
  N 326	130	280	58	ISB	Cylindrical Roller Bearings
  NF330	150	320	65	CRAFT	Cylindrical Roller Bearings
  NP799449/NP105857		127		Timken	Tapered Roller Bearings
  R150.15				SNR	Wheel Bearings
  RI-4	1,984	6,35	2,38	NMB	Deep Groove Ball Bearings
  SL12 926	130	180	96	INA	Cylindrical Roller Bearings
  VEB 40 /S/NS 7CE3	40	62	12	SNFA	Angular Contact Ball Bearings
  SL185005	25	47	30	INA	CYLINDRICAL ROLLER BEARINGS
  T4DB170	170	230	30	FAG	TAPERED ROLLER BEARINGS
  3309J2RS	45	100	39.7	INA	DOUBLE ROW ANGULAR CONTACT BALL BEARINGS
  SN220with22220	100	-	110	SKF	PILLOW BLOCKS
  93548	1.0000	1.3750	3.0000	BERLISS	JOURNAL ROLLER ASSEMBLIES
  TWJ32UU	2.0000		5.2500	NB	LINEAR RECIRCULATING BALL BEARINGS PILLOW BLOCKS
  NU-219	95	170	32	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS