305180-Angular contact ball bearing-FGFA bearings

305180 Double row angular contact ball bearing with split outer ring

Angular contact ball bearings can simultaneously accommodate radial and axial loads. They are capable of operating at high rotational speeds. The greater the contact angle, the higher the axial load capacity. High-precision and high-speed bearings typically employ a 15-degree contact angle. Under axial force, the contact angle increases.

Dimensions

d	170 mm	Bore diameter
D	260 mm	Outside diameter for two-piece outer ring
B	84 mm	Width
d₁	≈191 mm	Shoulder diameter inner ring
D₁	≈226 mm	Shoulder diameter for two-piece outer ring
K	6 mm	Radius of lubrication hole in two-piece outer ring (to be multiplied by two to get 'K')
r_1,2	min.2 mm	Chamfer dimension inner ring
a	222 mm	Distance pressure point(s)

Abutment dimensions

d_a	min.125 mm	Abutment diameter shaft
D_a	max.170 mm	Abutment diameter housing
r_a	max.2 mm	Fillet radius

Calculation data

Basic dynamic load rating	C	281 kN
Basic static load rating	C₀	405 kN
Fatigue load limit	P_u	11.6 kN
Reference speed		2 400 r/min
Limiting speed		2 600 r/min
Calculation factor	k_r	0.095
Limiting value	e	1.14
Calculation factor	X	0.57
Calculation factor	Y₀	0.52
Calculation factor	Y₁	0.55
Calculation factor	Y₂	0.93

Tolerances: Normal, P6, P5
Internal clearance: table, drawing no

Basic Parameters

Bearing Inner Diameter：170 mm
Bearing Outer Diameter：260 mm
Bearing Thickness：84 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.