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：2025-12-15
• Application:Microwave Equipment,Special Equipment,Security Equipment,coal,Material handling equipment,bio-chemical,fruit and vegetable processing,Warehouse Shelf Equipment,water protection,medical equipment,ventilation equipment
• Similar models:ISB 21308K+AH308 CX 21308KCW33+H308 ISB 21308 FAG 21308-E1-K+AH308 KOYO 21308RHK CX 21308CW33 ISO 21308KCW33+H308 ISO 21308KCW33+AH308 AST 21308MB NSK 21308L11ACAM
• 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
  15103S/243	26,162	61,912	19,05	PFI	Tapered Roller Bearings
  2214	70	125	31	ISO	Self-Aligning Ball Bearings
  2900	10	26	12	NACHI	Thrust Ball Bearings
  32348	240	500	165	NACHI	Tapered Roller Bearings
  47687/47620	82,55	133,35	33,338	FBJ	Tapered Roller Bearings
  5843				Ruville	Wheel Bearings
  627	7	22	7	ISO	Deep Groove Ball Bearings
  7907AC	35	55	10	NACHI	Angular Contact Ball Bearings
  89313	65	115		ISO	Thrust Roller Bearings
  BAM 1110	17,462	22,225	15,88	IKO	Needle Roller Bearings
  GE 25 PW	25	47	31	INA	Plain Bearings
  MR526832+MI-425232	66,675	107,95	51,05	NTN	Needle Roller Bearings
  MUC204	20	47	31	NACHI	Deep Groove Ball Bearings
  MUFL006	30			NACHI	Bearing Units
  NB1.20.0644.201-2PPN	572	716	56	ISB	Thrust Ball Bearings
  UCC204	20		31	KOYO	Bearing Units
  VSA 25 1055 N	955	1198		INA	Thrust Ball Bearings
  TLA1512Z	21		12	IKO	NEEDLE BEARINGS
  305806C-2Z	30	72	23.8	SKF	YOKE TYPE TRACK ROLLERS
  95720	1.2500	1.8750	1.2500	RBC	JOURNAL ROLLER ASSEMBLIES