d - 40 mm

D - 90 mm

B - 23 mm

C - 23 mm

r min. - 1,5 mm

da min. - 48,5 mm

Da max. - 81,5 mm

ra max. - 1,5 mm

Weight - 0,694 Kg

Basic dynamic load rating (C) - 88 kN

Basic static load rating (C0) - 90 kN

(Grease) Lubrication Speed - 4 900 r/min

(Oil) Lubrication Speed - 6 400 r/min

Calculation factor (e) - 0,26

Calculation factor (Y0) - 2,5

Calculation factor (Y1) - 2,55

Calculation factor (Y2) - 3,8

• Model Number: 21308CK
• Inner Diameter：40mm Outer Diameter：90mm Width：23mm
• Type：Spherical Roller Bearings
• Update date：2025-04-22
• Application:medical equipment,quality inspection equipment,relay,boring bar boring bar,plastic molding,Rolling mill,mechanical annex,electrostatic protection,Infrared Technology,wall materials,Vertical machining
• Similar models:KOYO 21308RHK AST 21308MBW33 FAG 21308-E1-K+AH308 CX 21308KCW33+H308 CX 21308KCW33+AH308 KOYO 21308RH ISB 21308K+AH308 SNR 21308V CX 21308KCW33 SKF 21308EK
• BEARING POWER International Trading Co.,Ltd. specialize in 21308CK products，there is large inventory of NTN 21308CK . We has been built up long-term cooperation with NTN company, could make a bulk order of the 21308CK Which NTN 21308CK 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
  07100S/07210X	25,4	50,8	15,011	ISB	Tapered Roller Bearings
  54408U	30	90	69.4	KOYO	Thrust Ball Bearings
  60/850	850,000	1220,000	165,000	NTN	Deep Groove Ball Bearings
  6205NR	25	52	15	KOYO	Deep Groove Ball Bearings
  7932B	160	220	28	KOYO	Angular Contact Ball Bearings
  805728	30	68	16,4	FAG	Tapered Roller Bearings
  CX099				CX	Wheel Bearings
  K28X35X18	28,000	35,000		NTN	Needle Roller Bearings
  GEZ69ES-2RS	69,85	111,125	61,112	FBJ	Plain Bearings
  LL788349/LL788310	1066,8	1219,2	65,088	Timken	Tapered Roller Bearings
  SS 6207-ZZ	35	72	17	ISB	Deep Groove Ball Bearings
  T-EE420801/421437	203,2	365,049	92,075	NTN	Tapered Roller Bearings
  TUP2 100.95	100	105		CX	Plain Bearings
  4304	20	52	21	FAG	DEEP GROOVE BALL BEARINGS
  NJ207	35	72	17	FAG	CYLINDRICAL ROLLER BEARINGS
  BK1412	20		12	FAG	NEEDLE BEARINGS
  6304Z	20	52	15	FAG	DEEP GROOVE BALL BEARINGS
  94720	1.2500	1.7500	1.2500	BERLISS	JOURNAL ROLLER ASSEMBLIES
  KB025CPO	2.5000	3.1250	.3125	KAYDON	DEEP GROOVE BALL BEARINGS
  6222RS	200	110	38	SKF	DEEP GROOVE BALL BEARINGS