Bearings, units and housings -- Roller bearings -- Tapered roller bearings -- Four-row tapered roller bearings -- Four-row tapered roller bearings, TQO design SKF BT4B 332981/HA4

BT4B 332981/HA4

Design

Design variant/feature

TQO.1/GWI

Dimensions

d		877.888	mm
D		1220	mm
B		844.55	mm
T		844.55	mm
d₁	≈	950	mm
D₁	≈	1090	mm
r_1,2	min.	4.8	mm
r_3,4	min.	12.7	mm

Calculation data

Basic dynamic load rating	C	28100	kN
Basic static load rating	C₀	76500	kN
Fatigue load limit	P_u	4550	kN
Comparative radial load rating	C_F	6950	kN
Comparative axial load rating	C_Fa	1140	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

3080

Model Number: BT4B 332981/HA4
Inner Diameter：877.888mm Outer Diameter：1220mm 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:mechanical annex,non-ferrous metal alloy,test laboratory equipment and accessories,lathe,Digital Generator,Display Devices,Ball screw,boring bar boring bar,lifting chain,medical equipment,Leather Products
Similar models:BT4B 332981/HA4
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Model No.	Inner Diameter	Outer Diameter	Width	Type
19834	50.8	69.85	6.35	Seals
32311 B	55	120	45.5	Bearings, units and housings
34408	87.3252	126.97	11.13	Seals
590326	203.2	254	19.05	Seals
590842	250.825	301.63	22.23	Seals
6222-2Z	110	200	38	Bearings, units and housings
7214 ACD/P4A	70	125	24	Bearings, units and housings
NKIS 65	65	95	28	Bearings, units and housings
P 1. TR	25.4	-	-	Bearings, units and housings
SAF 1616 T	68.2625	-	-	Bearings, units and housings
SAF 22538 x 7	177.8	-	-	Bearings, units and housings
SSAFS 22544 x 7.13/16 T	198.4375	-	-	Bearings, units and housings

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