d - 105 mm

D - 225 mm

T - 58 mm

B - 53 mm

C - 36 mm

a - 70,3 mm

r min. - 4 mm

r1 min. - 3 mm

r2 min. - 3 mm

da min. - 123 mm

da max - 126 mm

Da min - 193 mm

Da max. - 211 mm

db max. - 126 mm

Db min. - 211 mm

ra max. - 3 mm

rb max. - 2,5 mm

Db - 211 mm

Weight - 9,72 Kg

Basic dynamic load rating (C) - 397 kN

Basic static load rating (C0) - 489 kN

(Grease) Lubrication Speed - 1500 r/min

(Oil) Lubrication Speed - 2100 r/min

Calculation factor (e) - 0,83

Calculation factor (Y0) - 0,4

Calculation factor (Y1) - 0,73

• Model Number:31321JR
• Inner Diameter：105mm Outer Diameter：225mm Width：58mm
• Type：Tapered Roller Bearings
• Update date：2025-12-13
• Application:extruder,wire industry,motorcycle,reinforced machinery,dye pigments,Roller,light therapy instrument,Film machine,Beauty and Body,chamfering machine etc,milling head plug
• Similar models:NTN 31321XU NSK HR31321J FAG 31321-X-XL NTN 31321X KOYO 31321JR CX 31321A ISO 31321
• BEARING POWER International Trading Co.,Ltd. specialize in 31321JR products，there is large inventory of KOYO 31321JR . We has been built up long-term cooperation with KOYO company, could make a bulk order of the 31321JR Which KOYO 31321JR 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
  31314	70	150	38	ISO	Tapered Roller Bearings
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  5204K PRB	20	47	20,62	Timken	Angular Contact Ball Bearings
  52400D/52638+Y1S-52638	101,6	161,925	86,517	Timken	Tapered Roller Bearings
  6803LLU	17	26	5	NTN	Deep Groove Ball Bearings
  CRBH 4510 A	45	70	10	IKO	Thrust Roller Bearings
  N1010RXTPKR	50	72,5	16	NSK	Cylindrical Roller Bearings
  NN3015 K	75	115	30	CX	Cylindrical Roller Bearings
  NNU4956K	280	380	100	CX	Cylindrical Roller Bearings
  NU205	25	52	15	CRAFT	Cylindrical Roller Bearings
  NUP1018	90	140	24	KOYO	Cylindrical Roller Bearings
  SA1-70B	70	105	49	NTN	Plain Bearings
  FBX2ZZ	2	5	2.3	ADR	DEEP GROOVE BALL BEARINGS
  BR-7730	.7500	1.6250	.5000	FED	DEEP GROOVE BALL BEARINGS
  SN620	90		120	SKF	PILLOW BLOCKS
  W211PP3	1.5000	3.9370	1.3125	FAF	AGRICULTURAL BALL BEARINGS
  2308E/TG	40	90	33	STEYR	SELF
  NU-1010	50	80	16	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS
  HJ-405	25		6	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS
  NCF-1836V	180	225	22	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS