Do SKF bearing units require precision-ground shafts?

No. SKF UC-series insert bearings are designed to mount on commercial-tolerance (h-tolerance) shafts without precision grinding. The wide inner ring with grub screw or eccentric collar locking grips the shaft securely. This makes SKF bearing units ideal for agricultural, conveyor, and general industrial applications where shaft precision is not feasible or cost-effective.

How often should SKF pillow block bearing units be re-greased?

SKF bearing units come pre-lubricated for typical service conditions. In clean, dry, room-temperature environments, they can operate for thousands of hours without re-greasing. In dusty, wet, or high-temperature conditions, re-grease through the housing nipple every 500-1000 operating hours using a lithium complex or polyurea grease. Contact Shri Narayan Machinery LLP for lubrication recommendations specific to your environment.

SKF

Pillow Block & Flanged Bearing Units — SKF UCP/UCF/UCFL Series

Name: Pillow Block & Flanged Bearing Units — SKF UCP/UCF/UCFL Series
Brand: Shri Narayan Machinery LLP

SKF Pillow Block and Flanged Bearing Units combine a UC-series radial insert ball bearing with a cast iron or pressed steel housing for a ready-to-mount solution that eliminates the need for separate bearing selection, housing machining, and sealing arrangements. UCP units feature a pedestal (pillow block) housing for shaft support; UCF units have a 4-bolt square flange for face mounting; and UCFL units use a 2-bolt diamond flange for compact installations. The UC insert bearing uses a wide inner ring with grub screw or eccentric collar locking for secure grip on commercial-tolerance shafts without precision grinding. Pre-lubricated with SKF grease and equipped with integral rubber seals on both sides, these units are maintenance-friendly and contamination-resistant. Shri Narayan Machinery LLP in Noida maintains comprehensive stock of SKF UCP, UCF, and UCFL bearing units for conveyors, agricultural equipment, and general industrial applications across Delhi NCR.

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Type: Housed Insert Ball Bearing UnitHousing Styles: UCP (pillow block), UCF (4-bolt flange), UCFL (2-bolt flange)Insert Bearing: UC series (wide inner ring, self-aligning)Shaft Size Range: 12mm to 90mm (commercial tolerance shafts)

Key Features

Ready-to-mount design — no separate housing machining or seal arrangement needed

UC insert bearing with wide inner ring and grub screw or eccentric collar shaft locking

Pre-lubricated and sealed on both sides for extended maintenance-free operation

Cast iron housings (grey iron or SG iron) provide rigid support and vibration damping

UCP (pillow block), UCF (4-bolt square flange), UCFL (2-bolt diamond flange) options

Mounts on commercial-tolerance shafts — no precision grinding required

Re-greasing nipple on housing for periodic lubrication in demanding environments

Self-aligning insert accommodates up to 2° shaft misalignment

Technical Specifications

Type	Housed Insert Ball Bearing Unit
Housing Styles	UCP (pillow block), UCF (4-bolt flange), UCFL (2-bolt flange)
Insert Bearing	UC series (wide inner ring, self-aligning)
Shaft Size Range	12mm to 90mm (commercial tolerance shafts)
Housing Material	Cast iron (GG-25) or pressed steel
Sealing	Integral rubber seals on both sides of insert
Locking Method	Grub screw (standard) or eccentric collar (E suffix)
Lubrication	Pre-greased; re-lubrication nipple on housing
Dynamic Load Rating (max)	Up to 65 kN (UC 218 insert)
Static Load Rating (max)	Up to 44 kN
Permissible Misalignment	Up to 2°

Applications

The Pillow Block Bearing Units is used across a wide range of industrial applications:

Belt conveyors — tail and take-up pulley shaft support in material handling
Agricultural machinery — combine harvesters, grain augers, seed drills
Food processing — flour mills, rice husking machines, spice grinders
Textile machinery — take-up rolls, guide rollers, loom support shafts
Packaging machines — infeed and outfeed roller shaft support
Fan and blower assemblies — pedestal-mounted fan shaft bearings
Garage door openers and gate operators — simple, reliable shaft support

Industries Served

Agriculture & Farm EquipmentFood & Grain ProcessingMaterial Handling & ConveyorsTextile & ApparelPackaging & BottlingHVAC & Ventilation

Need Pillow Block Bearing Units? Get the Best Dealer Price

As your SKF dealer, Shri Narayan Machinery LLP offers competitive pricing on the entire Pillow Block Bearing Units range. Contact us for availability and your best quote.

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C-101, Sector 9, Noida, Uttar Pradesh 201301 | SKF Dealer

Frequently Asked Questions — Pillow Block Bearing Units

UCP is a pillow block (pedestal base) designed to be bolted to a flat surface supporting a horizontal shaft. UCF is a 4-bolt square flange unit for face mounting on vertical surfaces or structural members. UCFL is a 2-bolt diamond (oval) flange for space-constrained face mounting. All three use the same UC insert bearing — only the housing shape differs. Choose based on your mounting surface orientation and available bolt pattern space.

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