UC 309-Insert bearing-FGFA bearings

UC 309 Insert bearing with set screw locking and extended inner ring

Insert bearings (commonly known as Y-type bearings) are versatile mechanical transmission components suitable for multiple applications. Featuring a compact design, their core advantage lies in straightforward installation—requiring no complex mounting structures, they can be directly inserted into bearing housings or equipment mounting holes, significantly reducing assembly time and simplifying routine maintenance.

Dimensions

d	45 mm	Bore diameter
D	100 mm	Outside diameter
B	57 mm	Width of inner ring
C	29 mm	Width of outer ring
d₁	≈63 mm	Outside diameter of inner ring
B₄	10 mm	Distance face to thread centre
r_1,2	min.2.5 mm	Chamfer dimension of inner ring
s₁	35 mm	Distance from locking device side face to raceway centre

Calculation data

Basic dynamic load rating	C	52.7 kN
Basic static load rating	C₀	32 kN
Fatigue load limit	P_u	1.34 kN
Limiting speed		3 750 r/min
		Limiting speed with shaft tolerance h6
Calculation factor	f₀	13

Mounting information

Set screw	G₂	M10x1.25
Hexagonal key size for set screw	N	5.08 mm
Recommended tightening torque for set screw		16.5 N·m

Basic Parameters

Bearing Inner Diameter：45 mm
Bearing Outer Diameter：100 mm
Bearing Thickness：57 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.