Which shaft diameter is this pillow block suitable for?

The SKF SY 20 TF is designed for shafts with a diameter of 20 mm.

How is the bearing secured to the shaft?

It locks onto the shaft using set screws in the extended inner ring.

What materials are used for this unit?

The housing is made of cast iron and the insert bearing is made of steel.

What is the limiting speed of this bearing unit?

The limiting speed of this unit is 8500 rpm.

Is this bearing unit suitable for alternating directions of rotation?

Yes, it is designed for both constant and alternating rotation directions.

SKF SY 20 TF ball bearing unit 20 mm

Supplier number: SKF SY 20 TF | EAN 7316577032133

Recommended Retail Price €87.08

42.95 tax incl.

€35.50 excl. VAT (incl. all environmental contributions)

On stock - immediately available

Ordered before 20:00 - delivered tomorrow 10/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL

↓ Documents (1) ✆ Talk to a specialist

Reliable shaft support with Skf

Practical benefits

Quick and easy mounting: You securely fasten the inner ring onto the 20 mm shaft using convenient set screws.
Robust cast iron housing: The durable housing provides high structural stability and handles demanding mechanical loads in industrial operations.
High speed performance: The durable steel bearing ensures smooth and reliable operation at rotational speeds up to 8500 rpm.

In a nutshell

The right choise for

With the Skf sy 20 tf pillow block ball bearing unit, you quickly and securely install dependable shaft support for conveyors, industrial fans, and machinery. This ready-to-mount unit for 20 mm shafts features a robust cast iron housing engineered to handle demanding radial loads. Thanks to the extended inner ring with set screws, you lock the shaft firmly in place and prevent axial slippage. The durable steel bearing ensures smooth operation at limiting speeds up to 8500 rpm, supporting both constant and alternating rotation directions. Keep your drive systems running reliably with maximum mechanical stability.

Product information FAQ

€42.95

In stock - tax incl.

Key features according to our expert

Shaft diameter: 20 mm
Material (bearing): Steel
Bore type: Cylindrical
Limit speed: 8500 rpm
Material (bearing housing): Cast iron

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 suitable for applications with both constant and alternating directions of rotation. It has an inner ring extended on both sides and is locked onto the shaft by tightening a set screw on the inner ring, making it easy to mount.

Strong
Ready to mount
Lubricated and sealed bearing
Quick locking onto the shaft
Cost-effective

Documents

⤓ Technical data sheet PDF

All Features

Shaft diameter: 20 mm
Material (bearing): Steel
Bore type: Cylindrical
Limit speed: 8500 rpm
Material (bearing housing): Cast iron
Lubricant: Grease
Rubber seating ring: Without
Sealing type: Contact, standard
Sealing, bearing: Seal and flinger on both sides
Material, bearing: Bearing steel
Note: Limiting speed with shaft tolerance h6
Housing type: Pillow block
Application: For material handling applications
Basic static load rating: 6.55
Hexagonal key size for set screw: 3
Tightening torque, set screw: 4
Centre height (pillow block): 33.3
Grease fitting: With
Material, housing: Cast iron
Number of bolt holes for fasteners: 2
Centre distance between bolt holes: 97
Bearing width, total: 31
Basic dynamic load rating: 12.7
Coating: Without
Housing overall width: 32
Retaining feature, inner ring: Set screws
Relubrication hole: With
Fastening bolt hole type: Plain
Limiting speed: 8500
Sealing, unit: Optional end cover
Attachment bolt diameter: 10
Set screw: M6x0.75

Brand SKF
01190021
EAN 7316577032133
Supplier number SKF SY 20 TF

Frequently asked questions about this product

Answered by specialists

Which shaft diameter is this pillow block suitable for?: The SKF SY 20 TF is designed for shafts with a diameter of 20 mm.
How is the bearing secured to the shaft?: It locks onto the shaft using set screws in the extended inner ring.
What materials are used for this unit?: The housing is made of cast iron and the insert bearing is made of steel.
What is the limiting speed of this bearing unit?: The limiting speed of this unit is 8500 rpm.
Is this bearing unit suitable for alternating directions of rotation?: Yes, it is designed for both constant and alternating rotation directions.