What application is this bearing housing designed for?

The SKF FNL 509 A flanged housing is designed for shaft end arrangements without horizontal frames.

What is the bearing seat diameter of this housing?

This triangular housing features a bearing seat diameter of 85 mm.

What material is the housing made of?

This non-split flanged housing is made of durable cast iron.

How many mounting holes does the flange have?

The triangular flange has 3 attachment bolt holes for secure mounting.

What does the suffix A in the model designation indicate?

The suffix A indicates that the housing is supplied for a shaft end arrangement.

SKF FNL 509 A undivided bearing housing with flange, FNL cast 85 x 12 mm

Supplier number: SKF FNL 509 A | EAN 7316572868669

Recommended Retail Price €559.07

276.60 tax incl.

€228.60 excl. VAT (incl. all environmental contributions)

On stock - immediately available | we have 3 products in stock.

Ordered before 20:00 - delivered tomorrow 10/10/2026
Free shipping
Delivery by DHL

↓ Documents (1) ✆ Talk to a specialist

Stable mounting with Skf

Practical benefits

Robust cast iron housing: The solid non-split cast iron body gives you high structural rigidity and protects the bearing under heavy industrial loads.
Optimized for shaft ends: Featuring an integrated end cover, you reliably seal shaft terminations in machinery applications lacking horizontal support frames.
Accurate triangular flange mounting: The three-bolt triangular flange with an 85 mm bearing seat allows you to achieve precise alignment on flat surfaces.

In a nutshell

The right choise for

With the Skf fnl 509 a flanged bearing housing, you securely mount rotating shaft ends onto vertical machine walls or side frames without requiring a horizontal base frame. The robust non-split cast iron body delivers exceptional structural rigidity, protecting the bearing from heavy mechanical stress. Featuring a three-bolt triangular flange and an 85 mm bearing seat diameter, it allows you to achieve fast, precise alignment on flat surfaces. The integrated end cover encloses and shields the shaft termination, keeping your industrial machinery operating reliably in demanding environments.

Product information FAQ

€276.60

In stock - tax incl.

Key features according to our expert

Seat diameter: 85 mm
Material (bearing housing): Cast iron
Shape (bearing housing): Triangle

Product description

FNL cast flanged, non-split housings are well-proven machine parts that provide simple and reliable housing in applications without horizontal frames. They enable the full service life potential of the incorporated bearings to be exploited with less need for maintenance. FNL housings are supplied with a cover either for shaft ends (suffix A) or for through shafts (suffix B). Smaller sizes (up to and including size 13) have a triangular flange, larger sizes have a square flange.

Well-proven
Less need for maintenance

Documents

⤓ Technical data sheet PDF

All Features

Seat diameter: 85 mm
Material (bearing housing): Cast iron
Shape (bearing housing): Triangle
Attachment bolt diameter: 12
Material, housing: Cast iron
Diameter of bearing seat: 85
Housing type: Flanged
Housing configuration: One-piece
Number of bolt holes for fasteners: 3
Pitch diameter of bolt holes of round and triangle flange type housing: 160
Fastening bolt hole type: Cast holes
Mounting arrangement: Shaft end
Housing lubrication feature/possibility: Grease
Bearing housing seal type: Lip seal

Brand SKF
01231058
EAN 7316572868669
Supplier number SKF FNL 509 A

Frequently asked questions about this product

Answered by specialists

What application is this bearing housing designed for?: The SKF FNL 509 A flanged housing is designed for shaft end arrangements without horizontal frames.
What is the bearing seat diameter of this housing?: This triangular housing features a bearing seat diameter of 85 mm.
What material is the housing made of?: This non-split flanged housing is made of durable cast iron.
How many mounting holes does the flange have?: The triangular flange has 3 attachment bolt holes for secure mounting.
What does the suffix A in the model designation indicate?: The suffix A indicates that the housing is supplied for a shaft end arrangement.