d - 20,638 mm

D - 49,225 mm

T - 19,845 mm

B - 19,845 mm

C - 15,875 mm

ra1 max. - 1,5 mm

a - 12,9 mm

r min. - 1,5 mm

r1 min. - 1,5 mm

Da - 42,5 mm

db - 26 mm

ra max. - 1,5 mm

da - 28,5 mm

Db - 45,5 mm

Weight - 0,181 Kg

Basic dynamic load rating (C) - 36 kN

Basic static load rating (C0) - 37 kN

(Grease) Lubrication Speed - 8000 r/min

(Oil) Lubrication Speed - 11000 r/min

Calculation factor (e) - 0,32

Calculation factor (Y0) - 1

Calculation factor (Y1) - 1,9

• Model Number:12580/12520
• Inner Diameter：20,638mm Outer Diameter：49,225mm Width：19,845mm
• Type：Tapered Roller Bearings
• Update date：2025-12-16
• Application:sewage pump,other CNC,mathematical instruments,Display Devices,Safety protection,food safety,security equipment,Oral Equipment,rock drilling machinery,garbage disposal,gas turbine
• Similar models:NSK 12580/12520 KOYO 12580/12520 NTN 4T-12580/12520 CX 12580/12520 FBJ 12580/12520 NACHI 12580/12520 ISO 12580/12520 Timken 12580/12520
• BEARING POWER International Trading Co.,Ltd. specialize in 12580/12520 products，there is large inventory of NSK 12580/12520 . We has been built up long-term cooperation with NSK company, could make a bulk order of the 12580/12520 Which NSK 12580/12520 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
  33208	40	80	32	NKE	Tapered Roller Bearings
  42BWD02BCA86SA	42	76	40	NSK	Angular Contact Ball Bearings
  6306-2NKE9	30	72	19	NACHI	Deep Groove Ball Bearings
  7306B	30	72	19	CRAFT	Angular Contact Ball Bearings
  7921UADG/GNP42	105	145	20	NTN	Angular Contact Ball Bearings
  CRBC 80070	800	950	70	ISB	Thrust Roller Bearings
  GIR 50 UK-2RS	50	75	35	INA	Plain Bearings
  K 81148-MB	240	300	18	NKE	Thrust Roller Bearings
  K14X19X10	14	19	10	ISO	Needle Roller Bearings
  M-8121	12,7	17,462	19,05	NSK	Needle Roller Bearings
  NU1020	100	150	24	CX	Cylindrical Roller Bearings
  NUP420	100	250	58	ISO	Cylindrical Roller Bearings
  W208PP10	38,113	80	42,87	Timken	Deep Groove Ball Bearings
  23036CC	180	280	74	SKF	SPHERICAL ROLLER BEARINGS
  HML-6	.3750		.5000	Heim	ROD ENDS
  RNA4910RSR	72		22	INA	NEEDLE BEARINGS
  LJT25	25	52	15	R&M	ANGULAR CONTACT BALL BEARINGS
  81218			14.0	SKF	THRUST ROLLER BEARINGS
  16-B-4				MRC	THRUST BALL BEARINGS
  NU-2215	75	130	31	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS