d - 346.075 mm

D - 488.95 mm

T - 200.025 mm

C - 158.75 mm

r_1,2 - min. - 6.4 mm

r_3,4 - min. - 1.5 mm

a - 186 mm

Basic dynamic load rating - C - 2640 kN

Basic static load rating - C₀ - 6300 kN

Fatigue load limit - P_u - 510 kN

Comparative radial load rating - C_F - 655 kN

Comparative axial load rating - C_Fa - 216 kN

Thrust factor - K - 1.74

Calculation factor - e - 0.33

Calculation factor - Y₁ - 2

Calculation factor - Y₂ - 3

Calculation factor - Y₀ - 2

Mass bearing - 110 kg

Variants - TDO/D

• Model Number: 331981
• Inner Diameter：488,95mm Outer Diameter：346,075mm Width：200,025mm
• Type：Tapered Roller Bearings
• Update date：2025-04-21
• Application:Gear grinding machine,medical equipment,electromyography machine,medical equipment,construction machinery and equipment,laser devices,X-ray Equipment,generator,pneumatic,plastic molding,van
• Similar models:SKF 331981
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  475/472-B	55	120	29,007	Timken	Tapered Roller Bearings
  51309	45	85	28	KOYO	Thrust Ball Bearings
  52318	90	155	88	NSK	Thrust Ball Bearings
  5303S	17	47	22,2	NTN	Angular Contact Ball Bearings
  627	7	22	7	KOYO	Deep Groove Ball Bearings
  629X50	9	26	8	NTN	Deep Groove Ball Bearings
  7232	160	290	48	CYSD	Angular Contact Ball Bearings
  GE25-SW	25	47	14	INA	Plain Bearings
  HK0509	5	9	9	Timken	Needle Roller Bearings
  KBK17X22X22	17,000	22,000		NTN	Needle Roller Bearings
  NKS20	20	32	20	INA	Needle Roller Bearings
  PCM 030403 E/VB055	3	4,5	3	SKF	Plain Bearings
  T4020	102,108	179,619	31,75	Timken	Thrust Roller Bearings
  UCC321	105		112	NACHI	Bearing Units
  W 638/3 R-2RS1	3	7	3	SKF	Deep Groove Ball Bearings
  907	62	35		INA	THRUST BALL BEARINGS
  6007.2RSNR	35	62	14	FAG	DEEP GROOVE BALL BEARINGS
  61956M	280	380	46	FAG	DEEP GROOVE BALL BEARINGS
  63/22-2RS	22	56	16	CONSOLIDATED	DEEP GROOVE BALL BEARINGS