Bearings, units and housings -- Roller bearings -- Tapered roller bearings -- Four-row tapered roller bearings -- Four-row tapered roller bearings, TQO design SKF BT4B 328725 G/HA1

BT4B 328725 G/HA1

Design

Design variant/feature

TQO/GWI

Dimensions

d		300	mm
D		440	mm
B		280.988	mm
T		279.4	mm
d₁	≈	334	mm
D₁	≈	380	mm
r_1,2	min.	3.3	mm
r_3,4	min.	4.8	mm

Calculation data

Basic dynamic load rating	C	3190	kN
Basic static load rating	C₀	7800	kN
Fatigue load limit	P_u	670	kN
Comparative radial load rating	C_F	850	kN
Comparative axial load rating	C_Fa	175	kN
Thrust factor	K	1.4
Calculation factor	e	0.43
Calculation factor	Y₁	1.6
Calculation factor	Y₂	2.3
Calculation factor	Y₀	1.6

Mass

Mass bearing

145

Model Number: BT4B 328725 G/HA1
Inner Diameter：300mm Outer Diameter：440mm 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:Industrial equipment,lifting upgrade,electromagnet,Animal Tracking,power protection,respirator,Machine tool accessories,Doppler,electromagnetic clutch,animal anatomy,beverage production
Similar models:BT4B 328725 G/HA1
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Model No.	Inner Diameter	Outer Diameter	Width	Type
12x22x7 HMS5 RG	12	22	7	Seals
440x480x20 HDS1 V	440	480	20	Seals
6204/HR22Q2	20	47	14	Bearings, units and housings
7002 ACD/HCP4A	15	32	9	Bearings, units and housings
900 VL R	825	-	-	Seals
FSAF 1520 x 3.3/8	85.725	-	-	Bearings, units and housings
FYTWK 506 Y	-	-	-	Bearings, units and housings
GS 89436	180	360	36.5	Bearings, units and housings
OKBS 66	66	-	-
S7202 ACD/HCP4A	15	35	11	Bearings, units and housings
SAFS 23034 KATLC x 5.7/8	149.225	-	-	Bearings, units and housings
W 61808-2RS1	40	52	7	Bearings, units and housings

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Hot number： 21950 22228-2CS5K/VT143 7016 CB/P4A 70x88x8 CRW1 R 99237 BT4B 334075 G/HA1VA901 DMB 32/36 GEP 500 FS KRE 47 PPA NNCF 4924 CV NUP 2312 ECP OKCX 120 SAF 22622 x 3.11/16 TLC SAF 22634 x 5.7/8 T SYNT 80 LW