d - 40 mm

D - 90 mm

B - 23 mm

d₂ - - 60 mm

D₁ - - 79.8 mm

b - 5.5 mm

K - 3 mm

r_1,2 - min. - 1.5 mm

d_a - min. - 47.2 mm

d_a - max. - 60 mm

D_a - max. - 81 mm

r_a - max. - 1.5 mm

Basic dynamic load rating - C - 107 kN

Basic static load rating - C₀ - 108 kN

Fatigue load limit - P_u - 12 kN

Reference speed - 7000 r/min

Limiting speed - 9500 r/min

Calculation factor - e - 0.24

Calculation factor - Y₁ - 2.8

Calculation factor - Y₂ - 4.2

Calculation factor - Y₀ - 2.8

Weight - 0.74 kg

• Model Number: 21308 EK
• Inner Diameter：90mm Outer Diameter：40mm Width：23mm
• Type：Spherical Roller Bearings
• Update date：2025-04-22
• Application:medical equipment,steam Hydraulic control element,industry test,sheet industry,woodworking machinery,Power equipment,dye pigments,hot and cold box,welding equipment,marine test,Beauty and Body
• Similar models:NTN 21308CK ISB 21308EKW33+H308 ISO 21308KCW33+AH308 ISB 21308K+AH308 CX 21308KCW33+H308 NTN 21308C CX 21308KCW33+AH308 ISO 21308KCW33+H308 FAG 21308-E1-K+AH308 FAG 21308-E1
• BEARING POWER International Trading Co.,Ltd. specialize in 21308EK products，there is large inventory of SKF 21308 EK . We has been built up long-term cooperation with SKF company, could make a bulk order of the 21308 EK Which SKF 21308EK 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
  100BER20HV1V	100	150	30	NSK	Angular Contact Ball Bearings
  23248-B-K-MB+AH2348	240	440	160	FAG	Spherical Roller Bearings
  30306	30	72	20,75	PFI	Tapered Roller Bearings
  31308	40	90	25,25	FBJ	Tapered Roller Bearings
  46790R/46720	165,1		39,688	KOYO	Tapered Roller Bearings
  51413	65	140	56	NKE	Thrust Ball Bearings
  542/533D+X1S-542	38,1	111,125	79,375	Timken	Tapered Roller Bearings
  627-2RS	7	22	7	ZEN	Deep Groove Ball Bearings
  699-2Z	9	20	6	ZEN	Deep Groove Ball Bearings
  BEAM 50/140/C 7P60	50	140	54	SNFA	Thrust Ball Bearings
  DG256821	25	68	21	KBC	Deep Groove Ball Bearings
  NJ320DF	100,000	215,000	94,000	NTN	Cylindrical Roller Bearings
  NN4960KC9NAP5	300	420	118	NTN	Cylindrical Roller Bearings
  RTM-612				Andrews	THRUST ROLLER BEARINGS
  W672ZZA	2	4	2	NTN	DEEP GROOVE BALL BEARINGS
  140426	.8750	1.3750	1.6250	Rollway	JOURNAL ROLLER ASSEMBLIES
  MR-32			1.2500	CONSOLIDATED	NEEDLE BEARINGS
  54212-U				CONSOLIDATED	THRUST BALL BEARINGS WITH SPHERICAL SEATING RINGS
  94324	.7500	1.2500	1.5000	CONSOLIDATED	JOURNAL ROLLER ASSEMBLIES
  81326			30	CONSOLIDATED	THRUST ROLLER BEARINGS