d - 28 mm

D - 68 mm

T - 19,75 mm

B - 18 mm

C - 14 mm

a - 17,8 mm

r min. - 1,5 mm

r2 min. - 1,5 mm

da min. - 36,5 mm

da max - 37 mm

Da min - 55 mm

Da max. - 59,5 mm

Db min. - 64 mm

ra max. - 1,5 mm

rb max. - 1,5 mm

Weight - 0,332 Kg

Basic dynamic load rating (C) - 51,7 kN

Basic static load rating (C0) - 50,2 kN

(Grease) Lubrication Speed - 6200 r/min

(Oil) Lubrication Speed - 8200 r/min

Calculation factor (e) - 0,55

Calculation factor (Y0) - 0,6

Calculation factor (Y1) - 1,1

• Model Number: 303/28CR
• Inner Diameter：28mm Outer Diameter：68mm Width：19,75mm
• Type：Tapered Roller Bearings
• Update date：2025-12-10
• Application:laser devices,plant determination,axle lathe,tooth filling,Air,Other machinery,Laser Measurements,Reflective Materials Industrial fabrics,container finishing,Digital Generator,Industrial
• Similar models:NTN 30310 KOYO 46T30308JR/45,5 NSK HR30317DJ NTN 430311XU NTN 4T-430314DX NTN 430332XU ISB 30322 NTN CRI-22303 NTN 30334 ISB 30303
• BEARING POWER International Trading Co.,Ltd. specialize in 303/28CR products，there is large inventory of KOYO 303/28CR . We has been built up long-term cooperation with KOYO company, could make a bulk order of the 303/28CR Which KOYO 303/28CR 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
  30224	120	215	43,5	NKE	Tapered Roller Bearings
  331198	812,8	660,4	176,212	SKF	Tapered Roller Bearings
  7010 ACD/HCP4A	80	50	16	SKF	Angular Contact Ball Bearings
  7021 A	105	160	26	ISO	Angular Contact Ball Bearings
  81140-M	200	250	37	NBS	Thrust Roller Bearings
  CX227				CX	Wheel Bearings
  FL618/2,5	2,5	6	1,8	ISO	Deep Groove Ball Bearings
  LRJ5/8	15,875	39,6875	11,1125	RHP	Cylindrical Roller Bearings
  NAPK209-28	44,45			FYH	Bearing Units
  NNCF5010 V	50	80	40	CX	Cylindrical Roller Bearings
  PCMF 202316.5 E	20	23	16,5	SKF	Plain Bearings
  PNA15/32	15	32	16	INA	Needle Roller Bearings
  RSL183028-A	140	197,82	53	INA	Cylindrical Roller Bearings
  NUP240E	200	360	58	FAG	CYLINDRICAL ROLLER BEARINGS
  TAF152316	23		16	IKO	NEEDLE BEARINGS
  NAST6ZZ.DZ	6	19	14	FAG (Old No.)	NEEDLE BEARINGS
  CSCB042	4.2500	4.8750	.3125	INA	DEEP GROOVE BALL BEARINGS
  1207E	35	72	17	MRC	SELF
  N-440	200	480	102	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS
  IR-150x165x40	160		40	CONSOLIDATED	NEEDLE BEARINGS