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LY 311 2F

Y-Ball Bearings With Eccentric Locking Collar

55mm

d · Bore diameter

120mm

D · Outside diameter

71.5kN

Cdyn · Dynamic load rating

45kN

Co · Static load rating

2.34kg

kg · Mass

Price & availability

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Designation: LY 311 2F

Cross references

Manufacturer	Designation / part number
CLAAS	`667404.1(2)`

Part numbers of other manufacturers and original equipment (OEM) that this product corresponds to.

Bearing makers' type equivalents

Manufacturer	Designation / part number
SNR	`EX311G2`
NTN	`UEL311D1W3`

Type equivalents according to FKL's interchange table (Ball Bearings and Bearing Units catalogue, section 3.3). Each designation has been checked for this size in that maker's own catalogue; compare the dimensions before ordering.

What the designation means

2F: One lip rubber metal seal + flinger, on both sides

All prefixes and suffixes

Downloads

Datasheet (PDF)Official FKL datasheet

LY 311 2F

Technical specifications

Dimensions and load ratings – symbols refer to the technical drawing.

Symbol	Parameter	Value
d	Bore diameter	55mm
D	Outside diameter	120mm
B	Width inner ring	55.6mm
C	Width outer ring	34mm
s	Distance from inner ring side face to raceway centre	27.8mm
d1	Outer diameter inner ring	75.3mm
E	Distance from raceway centre to the hole for lubrication	8.5mm
Gs	Set screw	M10x1mm
sw	Hexagonal key size for set screw	5mm
r1,2	Inner ring Chamfer dimension	2mm
r3,4	Outside ring Chamfer dimension	2mm
B1	Width inner ring with locking collar	73mm
d2	Locking collar outside diameter	83mm
B2	Width locking collar	22.2mm
Cdyn	Dynamic load rating	71.5kN
Co	Static load rating	45kN
Pu	Fatigue load limit	1.9kN
kg	Mass	2.34kg

Sealing type

F SEAL / F SEAL (2F)

Dual sealing, protection cover placed on the inner ring protects against rough impurity particles and makes the labyrinth with the sheet part of the seal; then the sealing S type, with the labyrinth between the sheet part and the rubber lip that conducts the contact sealing. The friction and speeds are the same as with S but has much better protection against rough impurity particles. It is very good sealing system: the sheet part protects the seal from the soil, dust and rough particles. At the same time makes the labyrinth with the rubber part. The rubber part provides the contact sealing that prevents the penetration of the finer impurities, water, moisture, steam etc. Suitable for heavier conditions due to better protection against foreign matters. It is used with the Y bearings (standard).

Overview of all sealing types