Bearings, units and housings -- Roller bearings -- Tapered roller bearings -- Four-row tapered roller bearings -- Four-row tapered roller bearings, TQI design SKF BT4B 332720/HA4

BT4B 332720/HA4

Design

Design variant/feature

TQIT.1

Dimensions

d		1004.634	mm
D		1308.1	mm
B		812.8	mm
T		730.25	mm
d₁	≈	1135	mm
D₁	≈	1260	mm
r_1,2	min.	12.7	mm
r_3,4	min.	3.3	mm

Tapered bore, taper 1:12

Calculation data

Basic dynamic load rating	C	24600	kN
Basic static load rating	C₀	76500	kN
Fatigue load limit	P_u	4400	kN
Comparative radial load rating	C_F	6550	kN
Comparative axial load rating	C_Fa	1080	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

3060

Model Number: BT4B 332720/HA4
Inner Diameter：1004.634mm Outer Diameter：1308.1mm 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, TQI design
Update date：2026-06-25
Application:Industrial Adhesive,transportation equipment,ventilation fans,CNC,plant determination,squeeze machine etc,lathe,equipment and,experimental equipment,shaft milling machine,Oral Equipment
Similar models:BT4B 332720/HA4
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Model No. Inner Diameter Outer Diameter Width Type

65x120x12 HMS5 RG
67600
812/500 M
8860
NU 1876 ECM

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Hot number： 11205 ETN9 23654 37389 6307-2Z/VA208 7002 CD/HCP4A 7028 CD/HCP4AH1 7205 ACD/P4A BT4B 331347 AG/HA1 D/W R6 R-2Z FYE 2 7/16 N IR 75x85x30 NAO 20x37x16 NNC 4936 CV SAF 1617 x 2.13/16 TLC YEL 206-102-2F

Model No.	Inner Diameter	Outer Diameter	Width	Type
65x120x12 HMS5 RG
67600
812/500 M
8860
NU 1876 ECM