(dimensions in inches)

Bearing Type - single row assembly

Bore Dia (d) - 1.2500

Outer Dia (D) - 2.6150

Width (B) - 1.0000

Outer Width (Bo) - 0.8125

Inner Width (Bi) - 0.9983

Radius (min) (rs) - 0.031

Radius (min) (rs1) - 0.130

Weight (g) - 410.00

Material - 52100 chrome steel or equiavelent

The assembly part number lists the cone part number first and then the cup part number.

• Model Number: 2580/2520
• Inner Diameter：31,75mm Outer Diameter：66,421mm Width：25,4mm
• Type：Tapered Roller Bearings
• Update date：2025-12-16
• Application:supporting facilities,water,non-motor vehicle Electric car,packaging machinery,security equipment,stirrer,Machine Tool Accessories,Generator,sucker industry,hydraulic pressure gauge,other processing
• Similar models:AST 2580/2520 CX 2580/2520 KOYO 2580/2520 Timken 2580/2523B Timken 2580A/2520A Fersa 2580/2520 KOYO 12580/12520 ISO 2580/2523S NACHI 12580/12520 NTN 4T-2580/2523S
• BEARING POWER International Trading Co.,Ltd. specialize in 2580/2520 products，there is large inventory of AST 2580/2520 . We has been built up long-term cooperation with AST company, could make a bulk order of the 2580/2520 Which AST 2580/2520 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
  22238 KCW33+AH2238	190	340	92	ISO	Spherical Roller Bearings
  23184RHAK	420	700	224	KOYO	Spherical Roller Bearings
  240/1060B	1060	1500	438	NTN	Spherical Roller Bearings
  320/22 AX	22	44	15	CX	Tapered Roller Bearings
  444/432D	38,1	95,25	61,915	Timken	Tapered Roller Bearings
  6306DDU	30	72	19	NSK	Deep Groove Ball Bearings
  7324DB	120	260	55	CYSD	Angular Contact Ball Bearings
  95BNR29SV1V	95	130	22	NSK	Angular Contact Ball Bearings
  ARX10X25X6	10,000	25,000	6,000	NTN	Needle Roller Bearings
  NK21/16	21	29	16	INA	Needle Roller Bearings
  MR162412+MI-121612	19,05	38,1	19,3	NTN	Needle Roller Bearings
  M249747/710	257,175	358,775	71,438	ISB	Tapered Roller Bearings
  NJ1011	55	90	18	CYSD	Cylindrical Roller Bearings
  NNP4952V	260	360	100	PSL	Cylindrical Roller Bearings
  NU205	25	52	15	FBJ	Cylindrical Roller Bearings
  UCTH205-14-150	22,225		88	KOYO	Bearing Units
  BK1614RS	22		14	FAG	NEEDLE BEARINGS
  GS81192	464	560		SKF	THRUST ROLLER BEARINGS
  KA065ARO	6.5000	7.0000	.2500	KAYDON	ANGULAR CONTACT BALL BEARINGS
  6312-RS	60	130	31	CONSOLIDATED	DEEP GROOVE BALL BEARINGS