UCP Series Pillow Block Bearing Units
UCP series pillow block bearing units are commonly used in conveyor systems, agricultural machinery and general industrial equipment.

UCP series pillow block bearing units pair a UC insert bearing with a cast P-housing for stable base mounting on horizontal shafts. Available in UCP200 and UCP300 ranges (15–140 mm bore), they are widely used in belt conveyors, agricultural machinery, and general industrial equipment. Each unit features self-aligning capability, set-screw locking, a grease fitting, and ISO 9001 certified manufacturing.
Product Dimension Drawing
Download or view the product dimension drawing and technical data for model selection.
UCP Series Pillow Block Unit Specifications
| Unit No. | d (mm) | d (in.) | Housing No. | Mass (kg) |
|---|---|---|---|---|
| UCP202 | 15 | 5/8" | P203 | 0.6 |
| UCP202-10 | 15.875 | 5/8" | P203 | 0.6 |
| UCP203 | 17 | 11/16" | P203 | 0.6 |
| UCP203-11 | 17.462 | 11/16" | P203 | 0.6 |
| UCP204-12 | 19.05 | 3/4" | P204 | 0.65 |
| UCP204 | 20 | 3/4" | P204 | 0.65 |
| UCP205-14 | 22.225 | 7/8" | P205 | 0.72 |
| UCP205-15 | 23.813 | 15/16" | P205 | 0.72 |
| UCP205 | 25 | 1" | P205 | 0.72 |
| UCP205-16 | 25.4 | 1" | P205 | 0.72 |
| UCP206-18 | 28.575 | 1-1/8" | P206 | 1.15 |
| UCP206 | 30 | 1-3/16" | P206 | 1.15 |
| UCP206-19 | 30.163 | 1-3/16" | P206 | 1.15 |
| UCP206-20 | 31.75 | 1-1/4" | P206 | 1.15 |
| UCP207-20 | 31.75 | 1-1/4" | P207 | 1.53 |
| UCP207-21 | 33.337 | 1-5/16" | P207 | 1.53 |
| UCP207-22 | 34.925 | 1-3/8" | P207 | 1.53 |
| UCP207-23 | 36.513 | 1-7/16" | P207 | 1.53 |
| UCP208-24 | 38.1 | 1-1/2" | P208 | 1.88 |
| UCP208-25 | 39.688 | 1-9/16" | P208 | 1.88 |
| UCP209-26 | 41.275 | 1-5/8" | P209 | 2.1 |
| UCP209-27 | 42.862 | 1-11/16" | P209 | 2.1 |
| UCP209-28 | 44.45 | 1-3/4" | P209 | 2.1 |
| UCP209 | 45 | 1-3/4" | P209 | 2.1 |
| UCP210-30 | 47.625 | 1-7/8" | P210 | 2.5 |
| UCP210-31 | 49.212 | 1-15/16" | P210 | 2.5 |
| UCP210-32 | 50.8 | 2" | P210 | 2.5 |
| UCP210 | 50 | 2" | P210 | 2.5 |
| UCP211-32 | 50.8 | 2" | P211 | 3.3 |
| UCP211-34 | 53.975 | 2-1/8" | P211 | 3.3 |
| UCP211-35 | 55.563 | 2-3/16" | P211 | 3.3 |
| UCP211 | 55 | 2-3/16" | P211 | 3.3 |
| UCP212-36 | 57.15 | 2-1/4" | P212 | 5.5 |
| UCP212 | 60 | 2-3/8" | P212 | 5.5 |
| UCP212-38 | 60.325 | 2-3/8" | P212 | 5.5 |
| UCP212-39 | 61.913 | 2-7/16" | P212 | 5.5 |
| UCP213-40 | 63.5 | 2-1/2" | P213 | 5.6 |
| UCP213 | 65 | 2-1/2" | P213 | 5.6 |
| UCP214-44 | 69.85 | 2-3/4" | P214 | 7.3 |
| UCP214 | 70 | 2-3/4" | P214 | 7.3 |
| UCP215-48 | 76.2 | 3" | P215 | 8.3 |
| UCP215 | 75 | 3" | P215 | 8.3 |
| UCP216 | 80 | 3-1/8" | P216 | 10.8 |
| UCP217-52 | 82.55 | 3-1/4" | P217 | 13 |
| UCP217 | 85 | 3-1/4" | P217 | 13 |
| UCP218-56 | 88.9 | 3-1/2" | P218 | 17 |
| UCP218 | 90 | 3-1/2" | P218 | 17 |
| UCP305-14 | 22.225 | 7/8" | P305 | 1.4 |
| UCP305-15 | 23.813 | 15/16" | P305 | 1.4 |
| UCP305 | 25 | 1" | P305 | 1.4 |
| UCP305-16 | 25.4 | 1" | P305 | 1.4 |
| UCP306-18 | 28.575 | 1-1/8" | P306 | 1.8 |
| UCP306 | 30 | 1-3/16" | P306 | 1.8 |
| UCP306-19 | 30.163 | 1-3/16" | P306 | 1.8 |
| UCP307-20 | 31.75 | 1-1/4" | P307 | 2.8 |
| UCP307-21 | 33.337 | 1-5/16" | P307 | 2.8 |
| UCP307-22 | 34.925 | 1-3/8" | P307 | 2.8 |
| UCP307-23 | 36.513 | 1-7/16" | P307 | 2.8 |
| UCP308-24 | 38.1 | 1-1/2" | P308 | 3 |
| UCP308-25 | 39.688 | 1-9/16" | P308 | 3 |
| UCP308 | 40 | 1-1/2" | P308 | 3 |
| UCP309-26 | 41.275 | 1-5/8" | P309 | 4.1 |
| UCP309-27 | 42.862 | 1-11/16" | P309 | 4.1 |
| UCP309-28 | 44.45 | 1-3/4" | P309 | 4.1 |
| UCP309 | 45 | 1-3/4" | P309 | 4.1 |
| UCP310-30 | 47.625 | 1-7/8" | P310 | 5.8 |
| UCP310-31 | 49.212 | 1-15/16" | P310 | 5.8 |
| UCP310-32 | 50.8 | 2" | P310 | 5.8 |
| UCP310 | 50 | 2" | P310 | 5.8 |
| UCP311-32 | 50.8 | 2" | P311 | 7.4 |
| UCP311-34 | 53.975 | 2-1/8" | P311 | 7.4 |
| UCP311-35 | 55.563 | 2-3/16" | P311 | 7.4 |
| UCP311 | 55 | 2-3/16" | P311 | 7.4 |
| UCP312-36 | 57.15 | 2-1/4" | P312 | 9.4 |
| UCP312 | 60 | 2-3/8" | P312 | 9.4 |
| UCP312-38 | 60.325 | 2-3/8" | P312 | 9.4 |
| UCP312-39 | 61.913 | 2-7/16" | P312 | 9.4 |
| UCP313-40 | 63.5 | 2-1/2" | P313 | 10 |
| UCP313 | 65 | 2-1/2" | P313 | 10 |
| UCP314-44 | 69.85 | 2-3/4" | P314 | 12 |
| UCP314 | 70 | 2-3/4" | P314 | 12 |
| UCP315 | 75 | 3" | P315 | 14 |
| UCP315-48 | 76.2 | 3" | P315 | 14 |
| UCP316 | 80 | 3-1/8" | P316 | 18 |
| UCP317-52 | 82.55 | 3-1/4" | P317 | 20 |
| UCP317 | 85 | 3-1/4" | P317 | 20 |
| UCP318-56 | 88.9 | 3-1/2" | P318 | 24 |
| UCP318 | 90 | 3-1/2" | P318 | 24 |
| UCP319 | 95 | 3-11/16" | P319 | 29 |
| UCP319-60 | 95.25 | 3-3/4" | P319 | 29 |
| UCP320 | 100 | 3-15/16" | P320 | 35 |
| UCP320-64 | 101.6 | 4" | P320 | 35 |
| UCP321 | 105 | 4-1/8" | P321 | 35 |
| UCP322 | 110 | 4-5/16" | P322 | 45 |
| UCP324 | 120 | 4-3/4" | P324 | 55 |
| UCP326 | 130 | 5-1/8" | P326 | 72 |
| UCP328 | 140 | 5-1/2" | P328 | 89 |
Showing 97 of 97 models
Original Dimension Drawing
For full dimensional details, download the original technical drawing below.

Frequently Asked Questions
What is the difference between a UCP unit and a UC insert?
A UC insert is only the bearing, while a UCP unit is the UC insert pressed into a cast P-housing for base mounting. The UCP pillow block combines the self-aligning bearing with a ready-to-bolt block, so buyers get a complete mounted solution. UCP units share the same UC bore sizes, so a UCP205 uses a UC205 insert with a 25 mm bore and a P205 housing. CTZ supplies both loose UC inserts and complete UCP units for distributors.
What is the MOQ for UCP pillow block units?
CTZ accepts trial orders and full containers for UCP pillow block units. Wholesale MOQ for common sizes like UCP205, UCP208 and UCP210 usually starts at a few hundred pieces per model, and mixed-model pallets are possible for distributors. OEM and private label UCP orders have an MOQ based on box printing and packing setup. Send the required models and quantity to the Ningbo sales team to confirm MOQ and unit pricing.
What material are UCP pillow block housings made from?
The UC insert in a UCP unit uses Chrome Steel (GCr15 / 100Cr6) rings and balls with a hardened, spherical outer ring. The P-housing is typically cast iron, with options for pressed steel or stainless for washdown use. Cages are stamped steel and units ship greased with a fitting. CTZ applies incoming material and dimensional inspection so UCP pillow block bearing units keep consistent quality for distributors and OEM customers.
How are UCP units packed for export?
UCP pillow block units ship in neutral packing by default, with OEM brand packing, custom boxes, labels and export cartons available. Units are packed in inner boxes, master cartons and pallets for sea freight, and anti-rust protection can be added. CTZ confirms box artwork, carton quantity and pallet type before production so distributors receive UCP bearing orders ready for local sale and shelf display in their market.
What is the delivery time for UCP pillow block orders?
UCP pillow block orders usually ship 20 to 30 days after deposit, depending on quantity, model mix and packing. Common sizes such as UCP205 and UCP210 are often partly stocked for quicker dispatch, while custom OEM packing or large UCP300 volumes take longer. CTZ coordinates mixed container loads from Ningbo and shares a production and shipment schedule so distributors can plan inventory for conveyor and equipment assembly.
Need UCP Series Pillow Block Bearing Units?
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