What applications use UCFB Series Pillow Block & Insert Units?

UCFB Series Pillow Block & Insert Units are commonly selected for OEM equipment, replacement sourcing, and distributor stock programs. Share your load, speed, and mounting conditions for a tighter recommendation.

Can BLD customize clearance, materials, or packaging for UCFB Series Pillow Block & Insert Units?

Yes. Clearance grades, cage/seal options where applicable, and branded export packing are available for OEM programs.

How do I get the full UCFB Series datasheet?

Browse the specification table on this page, download the product-line datasheet from the catalog, or request a PDF quote pack from sales.

Bearing Series

UCFB Series

Pillow Block & Insert Units · Flange Unit

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UCFB SeriesFlange Unit30 models

Bearing No.	Shaft Dia.		Dimensions (mm)													Bolt Size	Housing No.
	d		H0	OuterL	H1	p	H	j	Hole Dist.J	A	A1	A2	Hole Dia.N	E	S
	(in.)	(mm)	H0	OuterL	H1	p	H	j	Hole Dist.J	A	A1	A2	Hole Dia.N	E	S
UCFB202	—	15	104	55	50	49	40	27	30	24	13	14	10	29.9	11.5	M8	FB202
UCFB202-10	5/8	—	104	55	50	49	40	27	30	24	13	14	10	29.9	11.5	M8	FB202
UCFB203	—	17	104	55	50	49	40	27	30	24	13	14	10	29.9	11.5	M8	FB203
UCFB203-11	11/16	—	104	55	50	49	40	27	30	24	13	14	10	29.9	11.5	M8	FB203
UCFB204-12	3/4	—	110	62	52	52	42	27	32	24	13	15	10	31.8	12.7	M8	FB204
UCFB204	—	20	110	62	52	52	42	27	32	24	13	15	10	31.8	12.7	M8	FB204
UCFB205-14	7/8	—	116	68	52	56	45	27	34	26	13	16	10	34.7	14	M8	FB205
UCFB205-15	15/16	—
UCFB205	—	25
UCFB205-16	1	—
UCFB206-18	1-1/8	—	132	80	55	65	50	29	40	29	13	18	10	39.2	15.9	M8	FB206
UCFB206	—	30
UCFB206-19	1-3/16	—
UCFB206-20	1-1/4	—
UCFB207-20	1-1/4	—	144	90	62	70	55	32	46	33	14	19	10	44.4	17.5	M8	FB207
UCFB207-21	1-5/16	—
UCFB207-22	1-3/8	—
UCFB207	—	35
UCFB207-23	1-7/16	—
UCFB208-24	1-1/2	—	164	100	72	78	60	41	50	34	17	21	12	50.2	19	M10	FB208
UCFB208-25	1-9/16	—
UCFB208	—	40
UCFB209-26	1-5/8	—	175	108	76	80	65	43	54	34	16	22	12	50.2	19	M10	FB209
UCFB209-27	1-11/16	—
UCFB209-28	1-3/4	—
UCFB209	—	45
UCFB210-30	1-7/8	—	184	114	82	86	68	46	58	35	16	22	12	52.6	19	M10	FB210
UCFB210-31	1-15/16	—
UCFB210	—	50
UCFB210-32	2	—

Technical content record

Reviewed by:: BLD Bearing Technical Team
Updated:: August 23, 2026
Record ID:: BLD-SERIES-PILLOW-BLOCK-INSERT-UNITS-UCFB-20260823
Catalog version:: BLD-WEB-PBU-2026.08

Dimensions, loads, speeds and weights on this page come from the BLD web catalog dataset. The ISO standards listed here support terminology, dimension systems, tolerances and load methods; they are not the direct source of BLD-specific values. Confirm contract-critical values in a signed specification or formal quotation.

Organization-level technical review; request a named engineer and signed specification for contract-critical decisions.

Reference sources

ISO 3228:2013 — Cast and pressed housings for insert bearings — Dimensions and tolerances
ISO 281:2007 — Rolling bearings — Dynamic load ratings and rating life
ISO 76:2006 — Rolling bearings — Static load ratings

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