d - 240 mm

D - 440 mm

T - 79 mm

B - 72 mm

C - 60 mm

a - 85,1 mm

r min. - 5 mm

r1 min. - 4 mm

da min. - 267 mm

Da min - 384 mm

Da max. - 422 mm

db max. - 288 mm

Db min. - 408 mm

ra max. - 4 mm

rb max. - 3 mm

Weight - 45,2 Kg

Basic dynamic load rating (C) - 990 kN

Basic static load rating (C0) - 1400 kN

(Grease) Lubrication Speed - 750 r/min

(Oil) Lubrication Speed - 1000 r/min

Calculation factor (e) - 0,44

Calculation factor (Y0) - 0,74

Calculation factor (Y1) - 1,4

• Model Number:30248
• Inner Diameter：240mm Outer Diameter：440mm Width：79mm
• Type：Tapered Roller Bearings
• Update date：2026-01-13
• Application:laser devices,electrostatic protection,animal,Hairbrush device,Gripper Swing,Broadcasting System,engineering machine,noise inspection,ignition system,Machine tools,animal anatomy
• Similar models:ISO 30248 NACHI 30248 KOYO 30248R NTN 30248 NSK 30248 CX 30248A NTN 430248
• BEARING POWER International Trading Co.,Ltd. specialize in 30248 products，there is large inventory of NSK 30248 . We has been built up long-term cooperation with NSK company, could make a bulk order of the 30248 Which NSK 30248 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
  101040/101080H	40	80	57	Gamet	Tapered Roller Bearings
  23230MBKW33	150	270	96	AST	Spherical Roller Bearings
  24156 CC/W33	460	280	180	SKF	Spherical Roller Bearings
  AST090 14560	145	150		AST	Plain Bearings
  449/432D	34,925	95,25	61,915	Timken	Tapered Roller Bearings
  6913LLB	65	90	13	NTN	Deep Groove Ball Bearings
  AST50 32IB24	50,8			AST	Plain Bearings
  CX246				CX	Wheel Bearings
  D/W RW133 R-2ZS	4,762	2,38	3,175	SKF	Deep Groove Ball Bearings
  HAR021CA	105	160	26	KOYO	Angular Contact Ball Bearings
  KAC035	88,9	101,6	6,35	KOYO	Deep Groove Ball Bearings
  NJ2308-E-TVP3	40	90	33	NKE	Cylindrical Roller Bearings
  NUP2312	60	130	46	SIGMA	Cylindrical Roller Bearings
  RBC1-0421	39	60	20,5	SKF	Cylindrical Roller Bearings
  SL183015	75	115	30	INA	Cylindrical Roller Bearings
  SY 1.3/8 TF	34,925			SKF	Bearing Units
  203K	40	17	12	FAF	DEEP GROOVE BALL BEARINGS
  1204MFF	20	47	14	FED	DEEP GROOVE BALL BEARINGS
  MUC316	80	170	39	Rollway	CYLINDRICAL ROLLER BEARINGS
  71901CDP4GA	12	24	6	SKF	ANGULAR CONTACT BALL BEARINGS