d - 5 mm

D - 11 mm

B - 5 mm

d₂ - - 6.2 mm

D₂ - - 9.9 mm

r_1,2 - min. - 0.15 mm

d_a - min. - 5.8 mm

d_a - max. - 6 mm

D_a - max. - 10.2 mm

r_a - max. - 0.1 mm

Basic dynamic load rating - C - 0.64 kN

Basic static load rating - C₀ - 0.26 kN

Fatigue load limit - P_u - 0.011 kN

Reference speed - 120000 r/min

Limiting speed - 60000 r/min

Calculation factor - k_r - 0.015

Calculation factor - f₀ - 11

Mass bearing - 0.0016 kg

• Model Number: 638/5-2Z
• Inner Diameter：11mm Outer Diameter：5mm Width：5mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-11
• Application:beverage production,other processing,Die,Low-voltage electrical equipment,extruder,laser devices,internal combustion engine,power protection,hydraulic cylinder,glass,fabric products
• Similar models:SKF W638/4XR-2RS1 ISO 63802ZZ SKF W638-2RZ SKF W63806-2RZ ISB SS638/2-ZZ ISB F63800 NTN 638Z SKF 638/5-2Z SKF W638/2XR-2Z CX 63800ZZ
• BEARING POWER International Trading Co.,Ltd. specialize in 638/5-2Z products，there is large inventory of SKF 638/5-2Z . We has been built up long-term cooperation with SKF company, could make a bulk order of the 638/5-2Z Which SKF 638/5-2Z 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
  23218YM	90	160	52	Timken	Spherical Roller Bearings
  4302 ATN9	42	15	17	SKF	Deep Groove Ball Bearings
  46T30218JR/61	90	160	74	KOYO	Tapered Roller Bearings
  60RIF251	152,4	276		Timken	Cylindrical Roller Bearings
  628Z	8	24	8	NTN	Deep Groove Ball Bearings
  7008 B-UO	40	68	30	CX	Angular Contact Ball Bearings
  ER210-32	50,8	90	51,6	FYH	Deep Groove Ball Bearings
  KFA110	279,4	317,5	19,05	KOYO	Angular Contact Ball Bearings
  RSF-4940E4	200	280	80	NSK	Cylindrical Roller Bearings
  O-7	22.225	42.069	15.875	NACHI	Thrust Ball Bearings
  SRW1-4-TT	1,98374	6,35		AST	Deep Groove Ball Bearings
  UCF206-20E	31.75			KOYO	Bearing Units
  UCFC202-10	15,875			FYH	Bearing Units
  UCS212LD1N	60,000	110,000	65,1	NTN	Deep Groove Ball Bearings
  K09008XP0	90	106	8	KAYDON	FOUR POINT ANGULAR CONTACT BALL BEARINGS
  NU2252	260	480	130	SKF	CYLINDRICAL ROLLER BEARINGS
  RT-729				INA	THRUST ROLLER BEARINGS
  6218K	90	160	30	SKF	DEEP GROOVE BALL BEARINGS
  CR-7/8-XBCE			.5000	Smith	NEEDLE BEARINGS
  32305	25	62	24	STEYR	TAPERED ROLLER BEARINGS