Product Categories / Mounted Bearings / Pillow Block Bearing / UCPPL203MZ2B

UCPPL203MZ2B

Name: UCPPL203MZ2B Pillow Block Bearing
Brand: LILY
Price: 14.63 USD
Availability: InStock

$14.63 /Each

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Overview
Part Number	UCPPL203MZ2B
Brand: LILY	Interchangeable With: AMI
Bearing Part Number	UC203MZ2
Housing Part Number	PPL204
Characteristics
System of Measurement	Metric
Bearing Type	Ball Bearing
Bearing Seal Type	Double Sealed
Inner Ring Type	Wide Inner Ring
Mounted Type	Pillow Block Bearing
Shaft Mount Type	Set Screw Locking
Product Series	UCPPL200MZ2
Housing Color	Black
Lubrication Fitting Tap	1/4-28 UNF
Dimensions
Bore Dia	17 mm
Bore Dia Tolerance	-0.0005" to 0"
Hole Width	11 mm
Hole Length	14 mm
Overall Height	65.5 mm
Pillow Width	38 mm
Pillow Height	14.2 mm
Center Height	33.3 mm
Whole Length	127 mm
Hole Ctr-to-Ctr Min	91 mm
Hole Ctr-to-Ctr Max	99 mm
Width of Inner Ring	31 mm
Mounting Bolt Size	M10
Material
Bearings Material	AISI 52100 Steel
Housing Material	PBT Thermoplastic
Performance
Temperature Range	-30° to 110 °C
Properties
RoHS	Compliant
REACH	Compliant
Lubrication	Required
Weight	0.32 kg

UCPPL203MZ2B Pillow Block Bearing data sheet

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What does UCPPL203MZ2B mean?

UCPPL203MZ2B is an AMI metric PBT thermoplastic pillow block unit with a wide inner ring insert and set screw locking, for a 17 mm shaft. The part number breaks down into 6 segments:

UC: Wide inner ring ball bearing insert, set screw locking, spherical outer ring. Insert part number is UC203MZ2

PPL: Housing style: PBT thermoplastic pillow block. Housing part number is PPL204

2: 200 series (normal duty)

03: Bore code: 03 = 17 mm

MZ2: Zinc-protected insert bearing for corrosion resistance

B: Housing color: black

Note: For metric mounted bearings, the bore is usually the bore code × 5 mm. Codes 00, 01, 02 and 03 are the exceptions: 10, 12, 15 and 17 mm.

Note: Part of AMI's Select Plus corrosion-resistant series.

Frequently asked questions

What does UCPPL203MZ2B mean?

UCPPL203MZ2B is an AMI metric PBT thermoplastic pillow block unit with a wide inner ring insert and set screw locking, for a 17 mm shaft. UC = wide inner ring ball bearing insert, set screw locking, spherical outer ring. Insert part number is UC203MZ2, PPL = housing style: PBT thermoplastic pillow block. Housing part number is PPL204, 2 = 200 series (normal duty), 03 = bore code: 03 = 17 mm, MZ2 = zinc-protected insert bearing for corrosion resistance, B = housing color: black.

What is the bore size of UCPPL203MZ2B?

The bore of UCPPL203MZ2B is 17 mm.

The housing of pillow block bearing, crafted from plastic, is engineered to withstand moisture-rich and chemically aggressive conditions with the lightweight corrosion resistance and rust-free durability needed to keep the overall mounted bearing assembly performing reliably over the long term.

Shaft retention is achieved through set screw locking in this pillow block bearing unit, which secures the shaft reliably against moderate loads and low-to-medium vibration — provided the shaft is of standard ground finish and the screws are correctly torqued — without damaging the shaft surface.

Two M10 bolts fasten the mounted bearing unit to the mounting surface, providing a secure and stable foundation that suits both new installations and direct replacement applications. M10 represents a mid-range metric fastener, widely used across standard industrial pillow blocks where moderate radial loads and everyday operating conditions are the norm.

Why choose Plastic for the bearing housing?

Because this pillow block bearing is specifically designed for moist, corrosive, or chemically aggressive conditions, plastic delivers lightweight corrosion resistance and zero rust where standard metal housings are prone to oxidation and surface degradation, making it a purpose-built choice for this application rather than a generic substitute.

Why does this bearing use Set Screw Locking to secure the shaft?

Set screw locking works by tightening one or two hardened screws directly against the shaft surface, which makes it well suited to applications where shaft positioning is fixed and loads are moderate. Its main advantage over other shaft locking methods is simplicity and low cost, which matters most when quick installation and minimal tooling are the priority.

How does the M10 affect installation and compatibility?

The bolt size directly determines whether the pillow block bearing can be mounted onto an existing frame or structure without modification. An M10 bolt corresponds to a mid-range hole pattern widely used in standard metric pillow blocks across a broad range of industrial applications, so when replacing an existing unit, confirming this dimension ensures a drop-in fit. Mismatched bolt sizes may require redrilling the mounting surface or sourcing an adapter plate, adding time and cost to the installation.