Bearings, units and housings -- Roller bearings -- Tapered roller bearings -- Four-row tapered roller bearings -- Four-row tapered roller bearings, TQO design SKF BT4B 328977 BG/HA1VA901

BT4B 328977 BG/HA1VA901

Design

Design variant/feature

TQOSN/GWSI

Dimensions

d		660.4	mm
D		812.8	mm
B		365.125	mm
T		365.125	mm
d₁	≈	692	mm
D₁	≈	784	mm
r_1,2	min.	2	mm
r_3,4	min.	6.4	mm

Calculation data

Basic dynamic load rating	C	7210	kN
Basic static load rating	C₀	20400	kN
Fatigue load limit	P_u	1430	kN
Comparative radial load rating	C_F	1730	kN
Comparative axial load rating	C_Fa	284	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

395

Model Number: BT4B 328977 BG/HA1VA901
Inner Diameter：660.4mm Outer Diameter：812.8mm 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:linear drive,baler,Seals,surgical instruments,other CNC,Ball screw,Sensors,relay,metallurgical mold,storage shelves,tower crane
Similar models:BT4B 328977 BG/HA1VA901
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Model No.	Inner Diameter	Outer Diameter	Width	Type
10x25x7 HMS5 V	10	25	7	Seals
1200240	304.8	342.9	17.48	Seals
23040-2CS5K/VT143	200	310	82	Bearings, units and housings
306890	340	480	60	Bearings, units and housings
54416 M + U 416	65	170	128.5	Bearings, units and housings
65x85x12 HMSA10 V	65	85	12	Seals
7004 ACE/P4AL	20	42	12	Bearings, units and housings
71913 CD/HCP4AL	65	90	13	Bearings, units and housings
KMFE 17	19	-	85	Bearings, units and housings
SAF 1609 x 1.3/8	34.925	-	-	Bearings, units and housings
SAF 22522 x 4 T	101.6	-	-	Bearings, units and housings
SAF 22536 x 6.1/2 TLC	165.1	-	-	Bearings, units and housings

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Hot number： 24126 CC/W33 593855 6004/HR22Q2 6219-Z 78790 BT4B 334033 G/HA1VA901 G 17x25x3 IR 25x30x30 KD10-604 NATR 30 PPXA NU 264 MA PL 56 SAF 23040 KA x 7.1/8 SAFS 23048 KA x 8.1/2 SSAFS 23056 KAT x 9.15/16