d - 241,3 mm

D - 327,025 mm

T1 - 25,4 mm

B - 52,388 mm

C - 36,512 mm

R - 6,3 mm

a - 7,6 mm

D1 - 336,448 mm

Da - 305 mm

db - 264 mm

C2 - 9,525 mm

da - 253 mm

Weight - 11,62 Kg

Basic static load rating (C0) - 1070 kN

Factor (G1) - 1050,5

Factor (G2) - 172,4

Factor (K) - 1,44

Basic dynamic load rating (C90) - 134

Basic dynamic load rating (Ca90) - 93,3

Basic dynamic load rating (C1) - 517 kN

Calculation factor (e) - 0,41

Calculation factor (Y) - 1,48

• Model Number:8578/8520B
• Inner Diameter：241,3mm Outer Diameter：327,025mm Width：52,388mm
• Type：Tapered Roller Bearings
• Update date：2025-12-11
• Application:Medical room equipment,paint paint,marine analysis,Hair styling device,top industry,Water Monitoring,marine analysis and testing equipment,Machine Tool Accessories,other processing,van,surgical instruments
• Similar models:Timken 8578/8520B ISO 8578/8520 KOYO 8578/8520 CX 8578/8520 Timken NP897593/NP857890 Timken 8578/8520 NTN T-8578/8520D+A Timken 8578/8520CD+X2S-8578 NTN T-8578/8520 Timken NP455350/NP857890
• BEARING POWER International Trading Co.,Ltd. specialize in 8578/8520B products，there is large inventory of Timken 8578/8520B . We has been built up long-term cooperation with Timken company, could make a bulk order of the 8578/8520B Which Timken 8578/8520B 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
  22336EK	180	380	126	NACHI	Cylindrical Roller Bearings
  46T32230JR/130	150	270	164	KOYO	Tapered Roller Bearings
  51252 M	260	360	79	ISB	Thrust Ball Bearings
  71909 ACE/P4A	68	45	12	SKF	Angular Contact Ball Bearings
  7308 A-UO	40	90	46	CX	Angular Contact Ball Bearings
  7310 BEP	110	50	27	SKF	Angular Contact Ball Bearings
  9102KDD	15	32	9	Timken	Deep Groove Ball Bearings
  E-R1050	50,000	94,442	27,000	NTN	Cylindrical Roller Bearings
  GE 020 XES	20	42	25	CX	Plain Bearings
  NUP3315	75	160	68,3	ISO	Cylindrical Roller Bearings
  AD5222	110	200	2.7500	American	CYLINDRICAL ROLLER BEARINGS
  62803-2Z	17	26	6	ELGES	DEEP GROOVE BALL BEARINGS
  6213RSNR	65	120	23	FAG	DEEP GROOVE BALL BEARINGS
  234705M.SP	27	47	234705 M.SP	FAG	ANGULAR CONTACT THRUST BALL BEARINGS
  E2313B/U	65	140	48	Rollway	CYLINDRICAL ROLLER BEARINGS
  S6202.2RSR	15	35	11	FAG	DEEP GROOVE BALL BEARINGS
  AHX3030	150	145		STEYR	WITHDRAWAL SLEEVES
  SSUCFT205-16	1.0000			Peer	STAINLESS STEEL PILLOW BLOCKS
  6017RS	85	130	22	STEYR	DEEP GROOVE BALL BEARINGS
  YCRSCR-80	1.7500	5.0000	2.8750	CONSOLIDATED	YOKE TYPE TRACK ROLLER