Bearings, units and housings -- Roller bearings -- Tapered roller bearings -- Four-row tapered roller bearings -- Four-row tapered roller bearings, TQO design SKF BT4B 331066 A/HA4

BT4B 331066 A/HA4

Design

Design variant/feature

TQO.1/GWI

Dimensions

d		825.5	mm
D		1168.4	mm
B		844.55	mm
T		844.55	mm
d₁	≈	900	mm
D₁	≈	1036	mm
r_1,2	min.	4.8	mm
r_3,4	min.	12.7	mm

Calculation data

Basic dynamic load rating	C	26000	kN
Basic static load rating	C₀	76500	kN
Fatigue load limit	P_u	4500	kN
Comparative radial load rating	C_F	7100	kN
Comparative axial load rating	C_Fa	1160	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

3050

Model Number: BT4B 331066 A/HA4
Inner Diameter：825.5mm Outer Diameter：1168.4mm 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：2026-04-16
Application:electromagnetic clutch,sanitation facilities,rock drilling machinery,Spectrum Products,Air,tray industry,product accessories,mechanical and electrical,EEG,Broadcasting System,water protection
Similar models:BT4B 331066 A/HA4
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Model No.	Inner Diameter	Outer Diameter	Width	Type
14977	38.1	59.13	12.7	Seals
16008/HR22Q2	40	68	9	Bearings, units and housings
29368	340	540	122	Bearings, units and housings
30070	76.2	111.15	11.13	Seals
63/28	28	68	18	Bearings, units and housings
7006 CD/P4AH	30	55	13	Bearings, units and housings
KM 31	25	-	155	Bearings, units and housings
OKC 640	640		-
PSM 182530 A51	18	25	30	Bearings, units and housings
SAF 1515 TLC	61.9125	-	-	Bearings, units and housings
WBB1-8700	1.2	4	1.8	Bearings, units and housings
ZW 50x62	50	62	2	Seals

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