BT2B 331840 C/HA1- Tapered roller bearing-FGFA bearings

BT2B 331840 C/HA1 Double row tapered roller bearing, TDI design

Tapered roller bearings are of the separable type, comprising an inner ring, outer ring, tapered rollers, and a cage. Through the matching of tapered raceways and rollers, they can simultaneously withstand substantial radial loads and unidirectional axial loads. Characterised by high load-carrying capacity and rigidity, they find extensive application in automotive hubs, machine tool spindles, construction machinery, mining equipment, and similar scenarios.

Design variant/feature	TDI/WIY2
Bore type	Cylindrical

Dimensions

d	406.4 mm	Bore diameter
D	546.1 mm	Outside diameter
T	138.113 mm	Total width
B	138.113 mm	Width of inner ring
d₁	433.99 mm	Shoulder diameter of inner ring (small side face)
D₁	490.611 mm	Raceway diameter of outer ring (small side face)
r_1,2	min.1.5 mm	Chamfer dimension of inner ring
r_3,4	min.6.4 mm	Chamfer dimension of outer ring

Calculation data

Basic dynamic load rating	C	2 339 kN
Basic static load rating	C₀	5 100 kN
Fatigue load limit	P_u	405 kN
Limiting value	e	0.48
Calculation factor	Y₁	1.4
Calculation factor	Y₂	2.1
Calculation factor	Y₀	1.4
Comparative radial load rating	C_F	570 kN
Comparative axial load rating	C_Fa	264 kN
Thrust factor	K	1.23

Tolerances:
bearings: Normal and CL7C, P5
inch bearings: Normal and CL
Internal clearance

Basic Parameters

Bearing Inner Diameter：406.4 mm
Bearing Outer Diameter：546.1 mm
Bearing Thickness：138.113 mm

Wafangdian Fafuge Bearing Co., Ltd., rooted in Wafangdian Bearing Industry Base, is an emerging professional bearing manufacturer. Drawing on the base’s profound industrial heritage, we have upheld craftsmanship since inception, integrated precision manufacturing into R&D and production, and focused on the R&D and refined production of spherical roller bearings.