d - 40 mm

D - 90 mm

T - 25,25 mm

a - 30 mm

B - 23 mm

C - 17 mm

C_{a min} - 4 mm

C_{b min} - 8 mm

D_{a max} - 81 mm

D_{a min} - 71 mm

D_{b min} - 86 mm

d₁ - 68,2 mm

d_{a max} - 51 mm

d_{b min} - 49 mm

r_{1, 2 min} - 2 mm

r_{3, 4 min} - 1,5 mm

r_{a max} - 2 mm

r_{b max} - 1,5 mm

m - 0,727 kg / Weight

C_r - 76000 N

C_0r - 83000 N / Static load rating (radial)

e - 0,83

Y - 0,73

Y₀ - 0,4

C_ur - 9500 N / Fatigue limit load, radial

n_G - 8000 1/min / Limiting speed

n_B - 5200 1/min / Reference speed

Main dimensions to DIN ISO 355 / DIN 720, separable, adjusted or in pairs

• Model Number: 31308-A
• Inner Diameter：40mm Outer Diameter：90mm Width：25,25mm
• Type：Tapered Roller Bearings
• Update date：2025-04-21
• Application:other accessories,food testing,Rolling mill gear box,Forging machine,instrument,industrial skin care,root canal filling,Medical room equipment,medical equipment,plastic molding,pipe fittings Steel industry
• Similar models:ISO 31308 SKF 31308J2/QCL7C Timken 31308 SKF 31308J2/QCL7CDF Fersa 31308F ISB 31308J/DF FAG 31308-XL-DF-A50-90 SNR 31308A FAG 31308-XL-P5-DF-VA20-40 NKE 31308-DF
• BEARING POWER International Trading Co.,Ltd. specialize in 31308-A products，there is large inventory of FAG 31308-A . We has been built up long-term cooperation with FAG company, could make a bulk order of the 31308-A Which FAG 31308-A 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
  16002-2RS	15	32	8	CRAFT	Deep Groove Ball Bearings
  22215C	75	130	31	AST	Spherical Roller Bearings
  51203	17,000	35,000	12,000	NTN-SNR	Thrust Ball Bearings
  51317	85	150	49	NTN	Thrust Ball Bearings
  51417	85	180	72	NACHI	Thrust Ball Bearings
  861/854	101,6	190,5	57,15	NSK	Tapered Roller Bearings
  AST50 60IB60	95,25			AST	Plain Bearings
  BRI 243720 UU	38,1	58,738	32	IKO	Needle Roller Bearings
  C2315K	75	160	55	SKF	Cylindrical Roller Bearings
  F-93805	28	38	24,8	INA	Needle Roller Bearings
  FR144ZZ	3,175	6,35	2,779	FBJ	Deep Groove Ball Bearings
  HK 4020 2RS	40	47	20	NBS	Needle Roller Bearings
  LM78349/10C	34,988	61,973	18	ISO	Tapered Roller Bearings
  PK30X40X28.8	30,000	40,000		NTN	Needle Roller Bearings
  NN4922MBKR	110	140	40	NSK	Cylindrical Roller Bearings
  NU2209E/95	45,000	95,000	23,000	NTN	Cylindrical Roller Bearings
  NU424-M1	120	310	72	FAG	Cylindrical Roller Bearings
  NUP28/900	900	1090	112	CX	Cylindrical Roller Bearings
  Y1/4ZZ	.2500	.6250	.1960	ADR	DEEP GROOVE BALL BEARINGS
  U1322L	110	240	50	Rollway	CYLINDRICAL ROLLER BEARINGS