29256-Thrust self-aligning roller bearing-FGFA bearings

29256 Spherical roller thrust bearing with machined metal cage

Thrust spherical roller bearings are precision transmission components specifically engineered for heavy axial loads. Their core comprises a housing ring, shaft ring, spherical rollers, and cage. Through the adaptation of spherical rollers to curved raceways, they deliver robust axial load capacity while automatically compensating for misalignment between the shaft and bearing housing (such as coaxiality errors), offering exceptional impact resistance.

Dimensions

d	280 mm	Bore diameter
D	380 mm	Outside diameter
H	60 mm	Height
d₁	≈370 mm	Outside diameter of shaft washer end side face
D₁	≈323 mm	Shoulder diameter outer ring
B	19 mm	Width shaft washer or length of shaft washer bore diameter that fits on shaft (bearings with a machined cage)
B₁	57 mm	Height shaft washer + cage
C	30.5 mm	Height housing washer
s	150 mm	Distance from shaft washer end side face to pressure point
r_1,2	min.2.1 mm	Chamfer dimension shaft washer

Abutment dimensions

d_a	min.325 mm	Diameter of shaft abutment
D_a	max.347 mm	Diameter of housing abutment
r_a	max.2 mm	Fillet radius

Calculation data

Basic dynamic load rating	C	863 kN
Basic static load rating	C₀	4 000 kN
Fatigue load limit	P_u	375 kN
Reference speed		1 000 r/min
Limiting speed		1 700 r/min
Minimum axial load factor	A	1.5

Basic Parameters

Bearing Inner Diameter：280 mm
Bearing Outer Diameter：380 mm
Bearing Thickness：60 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.