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：2025-04-22
• Application:hydraulic cylinder buffer,tapered grinder,journal lathe,van,Security Equipment,pipe fittings Steel industry,Vertical machining,Body shaping,printing machinery,small appliances,rolling mill roll neck and slowdown device
• Similar models:NTN 31321XU KOYO 31321JR NTN 31321X NSK HR31321J ISO 31321 FAG 31321-X-XL CX 31321A
• 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
  150KBE131	150	250	71	NACHI	Tapered Roller Bearings
  367/362A	45	88,9	20,638	Timken	Tapered Roller Bearings
  71907 C	35	55	10	CX	Angular Contact Ball Bearings
  71948 C	240	320	38	ISO	Angular Contact Ball Bearings
  HR3E	3		3	NMB	Plain Bearings
  K81114	70,000	95,000		NTN	Thrust Roller Bearings
  NA6912-ZW-XL	60	85	45	INA	Needle Roller Bearings
  NH209	45	85	19	ISO	Cylindrical Roller Bearings
  NJ 210 ECML	90	50	20	SKF	Thrust Ball Bearings
  NJ12/500	500	920	185	CX	Cylindrical Roller Bearings
  NU2214-E-M6	70	125	31	NKE	Cylindrical Roller Bearings
  VEX 110 /S 7CE3	110	170	28	SNFA	Angular Contact Ball Bearings
  BR-03	.3125	.8750	.2812	FED	DEEP GROOVE BALL BEARINGS
  NN3048ASK.M.SP	240	360	92	FAG	CYLINDRICAL ROLLER BEARINGS
  SN613	60		90	SKF	PILLOW BLOCKS
  NUP2312E	60	130	46	SKF	CYLINDRICAL ROLLER BEARINGS
  NK25/20	33		20	SKF	NEEDLE BEARINGS
  K-18x22x14	18	22	14	CONSOLIDATED	NEEDLE BEARINGS
  K-73x79x20	73	79	20	CONSOLIDATED	NEEDLE BEARINGS
  TWD-1120	.6875	1.2500		CONSOLIDATED	THRUST NEEDLE BEARINGS