What shaft diameter is this bearing unit designed for?

The SKF SY 40 WF pillow block unit is designed for shafts with a 40 mm diameter.

How is the bearing locked onto the shaft?

It locks onto the shaft using an eccentric locking collar, which is ideal for constant rotation directions.

What material is the housing made of?

The housing is made of durable cast iron, and the insert bearing is manufactured from bearing steel.

Is the bearing unit ready for immediate mounting?

Yes, it comes pre-lubricated, sealed, and ready to bolt onto a support surface.

SKF SY 40 WF ball bearing unit 40 mm

Supplier number: SKF SY 40 WF | EAN 7316570451313

Recommended Retail Price €196.35

97.20 tax incl.

€80.33 excl. VAT (incl. all environmental contributions)

On stock - immediately available

Delivery by DHL

↓ Documents (1) ✆ Talk to a specialist

Reliable shaft support with the SY 40 WF unit

Practical benefits

Fast and secure mounting: The eccentric locking collar allows you to clamp the unit firmly onto 40 mm shafts with minimal effort.
Robust cast iron housing: Built from durable cast iron, this housing absorbs heavy mechanical loads to give you dependable operational stability.
Pre-lubricated for immediate operation: Factory lubrication and effective seals ensure you can install the bearing immediately with built-in contamination protection.

In a nutshell

The right choise for

With the Skf sy 40 wf pillow block unit, you can mount 40 mm shafts quickly and securely onto flat support surfaces without complex machining. Thanks to the eccentric locking collar and extended inner ring, you achieve firm, reliable clamping for constant-direction rotation applications. The robust cast iron housing easily absorbs heavy mechanical loads and vibrations across conveyor systems, agricultural machinery, and industrial drive lines. Pre-lubricated and effectively sealed at the factory, this steel bearing unit keeps dirt out while accommodating initial shaft misalignments, ensuring smooth, dependable, and low-maintenance operation throughout every shift.

Product information FAQ

€97.20

In stock - tax incl.

Key features according to our expert

Shaft diameter: 40 mm
Bore type: Cylindrical
Material (bearing housing): Cast iron
Material (bearing): Steel

Product description

Pillow (plummer) block ball bearing units consist of an insert bearing mounted in a cast iron housing that can be bolted to a support surface. This variant is intended for use in applications where the direction of rotation is constant. It has an extended inner ring on both sides and is locked onto the shaft by an eccentric locking collar, making it easy to mount.

Strong
Ready to mount
Lubricated and sealed bearing
Designed for rotation in one direction
Accommodate static initial misalignment

Documents

⤓ Technical data sheet PDF

All Features

Shaft diameter: 40 mm
Bore type: Cylindrical
Material (bearing housing): Cast iron
Material (bearing): Steel
Number of bolt holes for fasteners: 2
Lubricant: Grease
Rubber seating ring: Without
Sealing type: Contact, standard
Sealing, bearing: Seal and flinger on both sides
Material, bearing: Bearing steel
Housing type: Pillow block
Material, housing: Cast iron
Basic static load rating: 19
Note: Limiting speed with shaft tolerance h6
Hexagonal key size for set screw: 5
Tightening torque, set screw: 16.5
Centre height (pillow block): 49.2
Grease fitting: With
Application: For material handling applications; For air handling applications
Retaining feature, inner ring: Eccentric collar
Bearing width, total: 56.3
Basic dynamic load rating: 30.7
Coating: Without
Housing overall width: 48
Centre distance between bolt holes: 135.5
Relubrication hole: With
Fastening bolt hole type: Plain
Limiting speed: 4800
Sealing, unit: Optional end cover
Attachment bolt diameter: 12
Set screw: M10x1

Brand SKF
01191084
EAN 7316570451313
Supplier number SKF SY 40 WF

Frequently asked questions about this product

Answered by specialists

What shaft diameter is this bearing unit designed for?: The SKF SY 40 WF pillow block unit is designed for shafts with a 40 mm diameter.
How is the bearing locked onto the shaft?: It locks onto the shaft using an eccentric locking collar, which is ideal for constant rotation directions.
What material is the housing made of?: The housing is made of durable cast iron, and the insert bearing is manufactured from bearing steel.
Is the bearing unit ready for immediate mounting?: Yes, it comes pre-lubricated, sealed, and ready to bolt onto a support surface.