SY50TF SKF 2 Bolt Plummer Block Y Bearing with Grub Screws 50mm

The SKF SY50TF is a heavy-duty pillow block ball bearing unit designed to provide dependable shaft support in demanding industrial, agricultural, processing, and material handling applications. Supplied as a complete ready-to-install assembly, the unit combines the SKF YAR 210-2F insert bearing with the robust SY 510 M cast iron housing, delivering high load carrying capacity, effective sealing protection, and long operational life.

Designed for 50mm shaft diameters, the SY50TF features an extended inner ring with a dual set screw locking arrangement, providing secure shaft retention and reliable operation in applications exposed to vibration, shock loads, and fluctuating operating conditions. Suitable for both continuous and reversing shaft rotation, the unit offers a versatile and cost-effective mounting solution across a wide range of industrial machinery.

The bearing insert is factory lubricated and equipped with contact seals and protective flingers on both sides, helping to retain lubricant while preventing the ingress of dust, dirt, and moisture. A relubrication facility with grease nipple is included as standard, allowing routine maintenance and helping maximise bearing service life while reducing downtime.

Manufactured from premium bearing steel and housed within a rugged cast iron pillow block housing, the SY50TF incorporates SKF's proven self-aligning design, enabling the unit to accommodate minor shaft misalignment and mounting inaccuracies while maintaining smooth and efficient operation.

Features & Benefits

• Complete ready-to-mount pillow block bearing unit
• Designed for 50mm shaft diameters
• Heavy-duty cast iron housing construction
• SKF YAR 210-2F insert bearing included
• Extended inner ring with dual set screw locking
• Suitable for constant and reversing shaft rotation
• Factory lubricated for immediate installation
• Contact seals and flingers fitted on both sides
• Relubrication facility with grease nipple supplied
• Self-aligning spherical seating arrangement
• Accommodates minor shaft misalignment
• Designed to ISO standards
• Optional end cover available (ECY 210)
• Excellent resistance to contamination, vibration and shock loads

Technical Specifications

Bearing Unit Design

• Manufacturer: SKF
• Part Number: SY50TF
• Housing Type: Pillow Block Bearing Unit
• Housing Reference: SY 510 M
• Bearing Reference: YAR 210-2F
• Standard: ISO
• Bore Type: Cylindrical
• Shaft Locking Method: Set Screws
• Housing Material: Cast Iron
• Bearing Material: Bearing Steel
• Coating: None
• Rubber Seating Ring: No

Dimensions

• Shaft Diameter (d): 50mm
• Inner Ring Shoulder Diameter (d1): 65.1mm
• Base Width (A): 54mm
• Top Width (A1): 34mm
• End Cover Projection (A5): 40.5mm
• Inner Ring Width (B): 57.2mm
• Distance to Thread Centre (B4): 8mm
• Centre Height (H): 63.5mm
• Foot Height (H1): 25mm
• Overall Height (H2): 125mm
• Bolt Hole Centres (J): 159mm
• Maximum Bolt Centre Distance (Jmax): 171mm
• Minimum Bolt Centre Distance (Jmin): 147mm
• Overall Length (L): 206mm
• Bolt Hole Diameter (N): 20mm
• Bolt Slot Length (N1): 31mm
• Raceway Centre Distance (s1): 34.1mm

Lubrication & Sealing

• Lubricant: Grease
• Relubrication Facility: Yes
• Grease Fitting: Included
• Grease Fitting Thread: 1/4-28 SAE-LT
• Housing Grease Port Thread: 1/4-28 UNF
• Bearing Seal Arrangement: Seal and Flinger on Both Sides
• Seal Type: Standard Contact Seal
• Optional Unit Sealing: End Cover ECY 210

Performance Data

• Basic Dynamic Load Rating (C): 35.1 kN
• Basic Static Load Rating (C₀): 23.2 kN
• Fatigue Load Limit (Pu): 0.98 kN
• Limiting Speed: 4,000 rpm
• Limiting Speed Based On: h6 Shaft Tolerance

Mounting Information

• Set Screw Size: M10 x 1
• Hex Key Size: 5mm
• Recommended Set Screw Tightening Torque: 15 Nm
• Recommended Attachment Bolt Diameter: 16mm (5/8")

Additional Data

• Number of Mounting Holes: 2
• Mounting Hole Type: Plain
• Unit Weight: Approximately 2.9kg
• eClass Code: 23-05-08-02
• UNSPSC Code: 31171536

Typical Applications

The SKF SY50TF pillow block bearing unit is widely used in conveyor systems, agricultural machinery, quarrying equipment, recycling machinery, timber processing equipment, food processing plants, manufacturing machinery, bulk material handling systems, packaging equipment, and general industrial applications where robust shaft support and long service life are required.

Manufactured to SKF's renowned engineering standards, the SY50TF delivers excellent load carrying capability, superior sealing performance, straightforward installation, and long-term operational reliability, making it an ideal solution for demanding industrial environments where uptime, durability, and performance are critical.