Bearings, units and housings -- Roller bearings -- Tapered roller bearings -- Four-row tapered roller bearings -- Four-row tapered roller bearings, TQO design SKF BT4B 331168 B

BT4B 331168 B

Design

Design variant/feature

TQO/WI

Dimensions

d		269.875	mm
D		381	mm
B		282.575	mm
T		282.575	mm
d₁	≈	293	mm
D₁	≈	339	mm
r_1,2	min.	3.3	mm
r_3,4	min.	3.3	mm

Calculation data

Basic dynamic load rating	C	3080	kN
Basic static load rating	C₀	7500	kN
Fatigue load limit	P_u	655	kN
Comparative radial load rating	C_F	815	kN
Comparative axial load rating	C_Fa	132	kN
Thrust factor	K	1.76
Calculation factor	e	0.33
Calculation factor	Y₁	2
Calculation factor	Y₂	3
Calculation factor	Y₀	2

Mass

Mass bearing

105

Model Number: BT4B 331168 B
Inner Diameter：269.875mm Outer Diameter：381mm Width：-mm
Reference speed:- Limiting speed:-
Type：Bearings, units and housings Roller bearings Tapered roller bearings Four-row tapered roller bearings
Details： Four-row tapered roller bearings Four-row tapered roller bearings, TQO design
Update date：2026-10-09
Application:Logistics Equipment,Flame Cutting,Storage Tool,static control,medical equipment,Die,miscellaneous instruments,packing equipment,teaching equipment,forming machine,electric hydraulic lifting platform
Similar models:BT4B 331168 B
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Model No. Inner Diameter Outer Diameter Width Type

22312 EK
52305
N 222 ECM
PCM 606570 E
SYNT 35 LTF

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Hot number： BD-22260 CCK/W33-AOH 2260 G 24780/24720 311 NR 30x48x8 CRW1 R 316739 A 708 CE/HCP4AH 7217 BECBP 7311 BECBY 75x110x12 HMS5 RG 8624 HA 3140 PSM 405050 A51 SIJ 12 E W 628-2RS1 YAR 209-108-2F

Model No.	Inner Diameter	Outer Diameter	Width	Type
22312 EK
52305
N 222 ECM
PCM 606570 E
SYNT 35 LTF