UCP Two Bolt Pillow Blocks Bearings
Standard Duty, high shaft height with set screw lock.
Available with: ◦Set screw or eccentric locking collar.
◦Corrosion resistant housing and bearing options include Cast iron, Stainless Steel, Thermoplastic, and Nickel plating.
◦B-type seals or L3 triple lip seals available for extra sealing needs.
◦Wide inner race bearing
◦Available with high temperature bearings.
Pillow blocks are usually referred to the housings which have a bearing fitted into them & thus the user need not purchase the bearings separately. Pillow blocks are usually mounted in cleaner environments & generally are meant for lesser loads of general industry. These differ from "plummer blocks" which are bearing housings supplied without any bearings & are usually meant for higher load ratings & corrosive industrial environments. However the terms pillow-block & plummer-block are used interchangeably in certain parts of the world.
However fundamental application of both types is the same which is to primarily mount bearings safely enabling their outer ring to be stationary while allowing rotation of the inner ring. The housing is bolted to a foundation through the holes in the base. Bearing housings are either split type or unsplit type. Split type housings are usually two piece housings where the cap and base can be detached. While certain series are one single piece housings. Various seals are provided to prevent dust and other contaminants from entering the housing. Thus the housing provides a clean environment for the expensive bearings to freely rotate hence increasing their performance and duty cycle.
Bearing housings are usually made of grey cast iron. However various different grades of metals can be used to manufacture the same.

Alternative P/N |
(d) Shaft Diameter |
(H) Dimension |
(A) Dimension |
(E) Dimension |
(B) Dimension |
(S2) Dimension |
(S1) Dimension |
Bolt Used |
|
in |
in |
in |
in |
in |
in |
in |
Lb |
UCP 201 |
|
1-3/16 |
4 7/8 |
3-5/8 |
1.4375 |
3/4 |
7/16 |
3/8 |
UCP 201-8 |
0.5 |
1-3/16 |
4 7/8 |
3-5/8 |
1.4375 |
3/4 |
7/16 |
3/8 |
UCP 202 |
|
1-3/16 |
4 7/8 |
3-5/8 |
1.4375 |
3/4 |
7/16 |
3/8 |
UCP 202-10 |
0.625 |
1-3/16 |
4 7/8 |
3-5/8 |
1.4375 |
3/4 |
7/16 |
3/8 |
UCP 203 |
|
1-3/16 |
4 7/8 |
3-5/8 |
1.4375 |
3/4 |
7/16 |
3/8 |
UCP UCP 204-12 |
0.75 |
1-5/16 |
5 |
3-3/4 |
1.5 |
11/16 |
7/16 |
3/8 |
UCP 204 |
|
1-5/16 |
5 |
3-3/4 |
1.5 |
11/16 |
7/16 |
3/8 |
UCP 205-14 |
0.875 |
1-7/16 |
5-1/2 |
4-1/8 |
1.5 |
11/16 |
1/2 |
3/8 |
UCP 205-15 |
0.9375 |
1-7/16 |
5-1/2 |
4-1/8 |
1.5 |
11/16 |
1/2 |
3/8 |
UCP 205 |
|
1-7/16 |
5-1/2 |
4-1/8 |
1.5 |
11/16 |
1/2 |
3/8 |
UCP 205-16 |
1 |
1-7/16 |
5-1/2 |
4-1/8 |
1.5 |
11/16 |
1/2 |
3/8 |
UCP 206-17 |
1.0625 |
1-5/8 1-11/16 |
6-5/16 |
4-3/4 |
1.75 |
13/16 |
9/16 |
1/2 |
UCP 206-18 |
1.125 |
1-5/8 1-11/16 |
6-5/16 |
4-3/4 |
1.75 |
13/16 |
9/16 |
1/2 |
UCP 206 |
|
1-5/8 1-11/16 |
6-5/16 |
4-3/4 |
1.75 |
13/16 |
9/16 |
1/2 |
UCP 206-19 |
1.1875 |
1-5/8 1-11/16 |
6-5/16 |
4-3/4 |
1.75 |
13/16 |
9/16 |
1/2 |
UCP 206-20 |
1.25 |
1-5/8 1-11/16 |
6-5/16 |
4-3/4 |
1.75 |
13/16 |
9/16 |
1/2 |
UCP 207-20 |
1.25 |
1-7/8 |
6-17/32 |
5 |
1-29/32 |
7/8 |
9/16 |
1/2 |
UCP 207-21 |
1.3125 |
1-7/8 |
6-17/32 |
5 |
1-29/32 |
7/8 |
9/16 |
1/2 |
UCP 207-22 |
1.375 |
1-7/8 |
6-17/32 |
5 |
1-29/32 |
7/8 |
9/16 |
1/2 |
UCP 207 |
|
1-7/8 |
6-17/32 |
5 |
1-29/32 |
7/8 |
9/16 |
1/2 |
UCP 207-23 |
1.4375 |
1-7/8 |
6-17/32 |
5 |
1-29/32 |
7/8 |
9/16 |
1/2 |
UCP 208-24 |
1.5 |
1-15/16 |
7-1/8 |
5-7/16 |
2 |
7/8 |
9/16 |
1/2 |
UCP 208-25 |
1.5625 |
1-15/16 |
7-1/8 |
5-7/16 |
2 |
7/8 |
9/16 |
1/2 |
UCP 208 |
|
1-15/16 |
7-1/8 |
5-7/16 |
2 |
7/8 |
9/16 |
1/2 |
UCP 209-26 |
1 5/8 |
2-1/8 |
7-1/2 |
5-3/4 |
2.125 |
13/16 |
|
|
|
|
|
|
|
|
|
|
|
UCP 209-27 |
1 11/16 |
2-1/8 |
7-1/2 |
5-3/4 |
2.125 |
13/16 |
19/32 |
1/2 |
UCP 209-28 |
1 3/4 |
2-1/8 |
7-1/2 |
5-3/4 |
2.125 |
13/16 |
19/32 |
1/2 |
UCP 209 |
|
2-1/8 |
7-1/2 |
5-3/4 |
2.125 |
13/16 |
19/32 |
1/2 |
UCP 210-30 |
1 7/8 |
2-1/4 |
8 |
6-1/4 |
2.25 |
15/16 |
23/32 |
5/8 |
UCP 210-31 |
1 15/16 |
2-1/4 |
8 |
6-1/4 |
2.25 |
15/16 |
23/32 |
5/8 |
UCP 210 |
|
2-1/4 |
8 |
6-1/4 |
2.25 |
15/16 |
23/32 |
5/8 |
UCP 210-32 |
2 |
2-1/4 |
8 |
6-1/4 |
2.25 |
15/16 |
23/32 |
5/8 |
UCP 211 32 |
2 |
2-1/2 |
8-5/8 |
6-7/8 |
2.375 |
15/16 |
23/32 |
5/8 |
UCP 211-34 |
2 1/8 |
2-1/2 |
8-5/8 |
6-7/8 |
2.375 |
15/16 |
23/32 |
5/8 |
UCP 211 |
|
2-1/2 |
8-5/8 |
6-7/8 |
2.375 |
15/16 |
23/32 |
5/8 |
UCP 211-35 |
2 3/16 |
2-1/2 |
8-5/8 |
6-7/8 |
2.375 |
15/16 |
23/32 |
5/8 |
UCP 212-36 |
2 1/4 |
2-3/4 |
9-17/32 |
7-11/32 |
2.5 |
1 |
25/32 |
5/8 |
UCP 212 |
|
2-3/4 |
9-17/32 |
7-11/32 |
2.5 |
1 |
25/32 |
5/8 |
UCP 212-38 |
2.375 |
2-3/4 |
9-17/32 |
7-11/32 |
2.5 |
1 |
25/32 |
5/8 |
UCP 212-39 |
2 7/16 |
2-3/4 |
9-17/32 |
7-11/32 |
2.5 |
1 |
25/32 |
5/8 |
UCP 213-40 |
2 1/2 |
3 |
10-3/4 |
8-1/8 |
2.5 |
1-3/16 |
13/16 |
5/8 |
UCP 213 |
|
3 |
10-3/4 |
8-1/8 |
2.5 |
1-3/16 |
13/16 |
5/8 |
UCP 214-43 |
2 11/16 |
3 |
10-3/4 |
8-1/8 |
2.5 |
1-13/16 |
13/16 |
5/8 |
UCP 214-44 |
2 3/4 |
3 |
10-3/4 |
8-1/8 |
2.5 |
1-13/16 |
13/16 |
5/8 |
UCP 214 |
|
3 |
10-3/4 |
8-1/8 |
2.5 |
1-13/16 |
13/16 |
5/8 |
UCP 215-47 |
2 15/16 |
3-1/4 |
10-13/16 |
8-1/2 |
2.9375 |
1-1/4 |
1 |
7/8 |
UCP 215 |
|
3-1/4 |
10-13/16 |
8-1/2 |
2.9375 |
1-1/4 |
1 |
7/8 |
UCP 215-48 |
3 |
3-1/4 |
10-13/16 |
8-1/2 |
2.9375 |
1-1/4 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
UCPL 201 |
|
1-1/16 |
4 7/8 |
3-5/8 |
1.4375 |
3/4 |
7/16 |
3/8 |
UCPL 201-8 |
0.5 |
1-1/16 |
4 7/8 |
3-5/8 |
1.4375 |
3/4 |
7/16 |
3/8 |
UCPL 202 |
|
1-1/16 |
4 7/8 |
3-5/8 |
1.4375 |
3/4 |
7/16 |
3/8 |
UCPL 202-10 |
0.625 |
1-1/16 |
4 7/8 |
3-5/8 |
1.4375 |
3/4 |
7/16 |
3/8 |
UCPL 203 |
|
1-1/16 |
4 7/8 |
3-5/8 |
1.4375 |
3/4 |
7/16 |
3/8 |
UCPL 204-12 |
0.75 |
1-1/4 |
5 |
3-3/4 |
1.5 |
9/16 |
7/16 |
3/8 |
UCPL 204 |
|
1-1/4 |
5 |
3-3/4 |
1.5 |
9/16 |
7/16 |
3/8 |
UCPL 205-14 |
0.875 |
1-5/16 |
5-1/2 |
4-1/8 |
1.5 |
11/16 |
7/16 |
3/8 |
UCPL 205-15 |
0.9375 |
1-5/16 |
5-1/2 |
4-1/8 |
1.5 |
11/16 |
7/16 |
3/8 |
UCPL 205 |
|
1-5/16 |
5-1/2 |
4-1/8 |
1.5 |
11/16 |
7/16 |
3/8 |
UCPL 205-16 |
1 |
1-5/16 |
5-1/2 |
4-1/8 |
1.5 |
11/16 |
7/16 |
3/8 |
UCPL 206-17 |
1.0625 |
1-9/16 |
6-11/32 |
4-3/4 |
1.75 |
13/16 |
9/16 |
1/2 |
UCPL 206-18 |
1.125 |
1-9/16 |
6-11/32 |
4-3/4 |
1.75 |
13/16 |
9/16 |
1/2 |
UCPL 206 |
|
1-9/16 |
6-11/32 |
4-3/4 |
1.75 |
13/16 |
9/16 |
1/2 |
UCPL 206-19 |
1.1875 |
1-9/16 |
6-11/32 |
4-3/4 |
1.75 |
13/16 |
9/16 |
1/2 |
UCPL 206-20 |
1.25 |
1-9/16 |
6-11/32 |
4-3/4 |
1.75 |
13/16 |
9/16 |
1/2 |
UCPL 207-20 |
1.25 |
1-13/16 |
6-19/32 |
5 |
1.875 |
7/8 |
9/16 |
1/2 |
UCPL 207-21 |
1.3125 |
1-13/16 |
6-19/32 |
5 |
1.875 |
7/8 |
9/16 |
1/2 |
UCPL 207-22 |
1.375 |
1-13/16 |
6-19/32 |
5 |
1.875 |
7/8 |
9/16 |
1/2 |
UCPL 207 |
|
1-13/16 |
6-19/32 |
5 |
1.875 |
7/8 |
9/16 |
1/2 |
UCPL 207-23 |
1.4375 |
1-13/16 |
6-19/32 |
5 |
1.875 |
7/8 |
9/16 |
1/2 |
UCPL 208-24 |
1.5 |
1-15/16 |
7-1/8 |
5-7/16 |
2 |
7/8 |
9/16 |
1/2 |
UCPL 208-25 |
1.5625 |
1-15/16 |
7-1/8 |
5-7/16 |
2 |
7/8 |
9/16 |
1/2 |
UCPL 208 |
|
1-15/16 |
7-1/8 |
5-7/16 |
2 |
7/8 |
9/16 |
1/2 |
UCPL 209-26 |
1 5/8 |
2-1/16 |
7-1/2 |
5-3/4 |
2.125 |
13/16 |
|
|
UCPL 209-27 |
1 11/16 |
2-1/16 |
7-1/2 |
5-3/4 |
2.125 |
13/16 |
9/16 |
1/2 |
UCPL 209-28 |
1 3/4 |
2-1/16 |
7-1/2 |
5-3/4 |
2.125 |
13/16 |
9/16 |
1/2 |
UCPL 209 |
|
2-1/16 |
7-1/2 |
5-3/4 |
2.125 |
13/16 |
9/16 |
1/2 |
UCPL 210-30 |
1 7/8 |
2-3/16 |
8-1/32 |
6-1/4 |
2.25 |
15/16 |
11/16 |
5/8 |
UCPL 210-31 |
1 15/16 |
2-3/16 |
8-1/32 |
6-1/4 |
2.25 |
15/16 |
11/16 |
5/8 |
UCPL 210 |
|
2-3/16 |
8-1/32 |
6-1/4 |
2.25 |
15/16 |
11/16 |
5/8 |
UCPL 210-32 |
2 |
2-3/16 |
8-1/32 |
6-1/4 |
2.25 |
15/16 |
11/16 |
5/8 |
UCPL 211-32 |
2 |
2-7/16 |
8-5/8 |
7 |
2.375 |
15/16 |
11/16 |
5/8 |
UCPL 211-34 |
2 1/8 |
2-7/16 |
8-5/8 |
7 |
2.375 |
15/16 |
11/16 |
5/8 |
UCPL 211 |
|
2-7/16 |
8-5/8 |
7 |
2.375 |
15/16 |
11/16 |
5/8 |
UCPL 211-35 |
2 3/16 |
2-7/16 |
8-5/8 |
7 |
2.375 |
15/16 |
11/16 |
5/8 |
UCPL 212-36 |
2 1/4 |
2-11/16 |
9-7/16 |
7-3/8 |
2.5 |
1 |
11/16 |
5/8 |
UCPL 212 |
|
2-11/16 |
9-7/16 |
7-3/8 |
2.5 |
1 |
11/16 |
5/8 |
UCPL 212-38 |
2.375 |
2-11/16 |
9-7/16 |
7-3/8 |
2.5 |
1 |
11/16 |
5/8 |
UCPL 212-39 |
2 7/16 |
2-11/16 |
9-7/16 |
7-3/8 |
2.5 |
1 |
11/16 |
5/8 |
UCPL 213-40 |
2 1/2 |
2-11/16 |
9-3/4 |
7-5/8 |
2.75 |
1-1/8 |
11/16 |
5/8 |
UCPL 213 |
|
2-11/16 |
9-3/4 |
7-5/8 |
2.75 |
1-1/8 |
11/16 |
5/8 |
UCPL 215-47 |
2 15/16 |
3-1/4 |
10-13/16 |
8-1/2 |
2.9375 |
1-1/4 |
1 |
7/8 |
UCPL 215 |
|
3-1/4 |
10-13/16 |
8-1/2 |
2.9375 |
1-1/4 |
1 |
7/8 |
UCPL 215-48 |
3 |
3-1/4 |
10-13/16 |
8-1/2 |
2.9375 |
1-1/4 |
|
|
Bearing |
Shaft Dia d |
Dimensions(mm) |
Bearing No. |
Housing No. |
Housing |
Unit NO. |
h |
a |
e |
b |
s2 |
|
Wt (kg) |
UCP305-14 |
25 |
45 |
175 |
132 |
45 |
20 |
UC305-14 |
P305 |
0.9 |
UCP305-15 |
UC305-15 |
UCP305-16 |
UC305-16 |
UCP305 |
UC305 |
UCP306-18 |
30 |
50 |
180 |
140 |
50 |
20 |
UC306-18 |
P306 |
1.1 |
UCP306-19 |
UC306-19 |
UCP306 |
UC306 |
UCP307-20 |
35 |
56 |
210 |
160 |
56 |
25 |
UC307-20 |
P307 |
1.95 |
UCP307-21 |
UC307-21 |
UCP307-22 |
UC307-22 |
UCP307-23 |
UC307-23 |
UCP307 |
UC307 |
UCP308-24 |
40 |
60 |
220 |
170 |
60 |
27 |
UC308-24 |
P308 |
2.2 |
UCP308-25 |
UC308-25 |
UCP308 |
UC308 |
UCP309-26 |
45 |
67 |
245 |
190 |
67 |
30 |
UC309-26 |
P309 |
3.3 |
UCP309-27 |
UC309-27 |
UCP309-28 |
UC309-28 |
UCP309 |
UC309 |
UCP310-30 |
50 |
75 |
275 |
212 |
75 |
35 |
UC310-30 |
P310 |
4.8 |
UCP310-31 |
UC310-31 |
UCP310 |
UC310 |
UCP311-32 |
55 |
80 |
310 |
236 |
80 |
38 |
UC311-32 |
P311 |
5.3 |
UCP311-34 |
UC311-34 |
UCP311-35 |
UC311-35 |
UCP311 |
UC311 |
UCP312-36 |
60 |
85 |
330 |
250 |
85 |
38 |
UC312-36 |
P312 |
6.3 |
UCP312-38 |
UC312-38 |
UCP312-39 |
UC312-39 |
UCP312 |
UC312 |
UCP313-40 |
65 |
90 |
340 |
260 |
90 |
38 |
UC313-40 |
P313 |
8 |
UCP313 |
UC313 |
UCP314-44 |
70 |
95 |
360 |
280 |
90 |
40 |
UC314-44 |
P314 |
8.3 |
UCP314 |
UC314 |
UCP315-48 |
75 |
100 |
380 |
290 |
100 |
40 |
UC315-48 |
P315 |
9.5 |
UCP315 |
UC315 |
UCP316-50 |
80 |
106 |
400 |
300 |
110 |
40 |
UC316-50 |
P316 |
12.5 |
UCP316 |
UC315 |
UCP317-52 |
85 |
112 |
420 |
320 |
110 |
45 |
UC317-52 |
P317 |
14.5 |
UCP317 |
UC317 |
UCP318-56 |
90 |
118 |
430 |
330 |
110 |
45 |
UC318-56 |
P318 |
20.4 |
UCP318 |
UC318 |
UCP319-60 |
95 |
125 |
470 |
360 |
120 |
50 |
UC319-60 |
P319 |
22.3 |
UCP319 |
UC319 |
UCP320-64 |
100 |
140 |
490 |
380 |
120 |
50 |
UC320-64 |
P320 |
25 |
UCP320 |
UC320 |
UCP321 |
105 |
140 |
490 |
380 |
120 |
50 |
UC321 |
P321 |
24 |
UCP322 |
110 |
150 |
520 |
400 |
140 |
55 |
UC322 |
P322 |
27.5 |
UCP324 |
120 |
160 |
570 |
450 |
140 |
55 |
UC324 |
P324 |
32.3 |
UCP326 |
130 |
180 |
600 |
480 |
140 |
55 |
UC326 |
P326 |
41 |
UCP328 |
140 |
200 |
620 |
500 |
140 |
55 |
UC328 |
P328 |
50 |