TIMKEN UCP210 50 mm Two-Bolt Pillow Block Mounted Bearing Unit

TIMKEN UCP210 50 mm Two-Bolt Pillow Block Mounted Bearing Unit

TIMKEN UCP210 is a complete two-bolt pillow block mounted bearing unit designed for a 50 mm shaft. The assembly incorporates the UC210 ball bearing insert with a wide inner ring and set-screw shaft locking. Official Timken data specify a base-to-centre height H = 57.2 mm, total length L = 206 mm and mounting-hole spacing J = 159 mm.

TIMKEN UCP210 - Characteristics

UCP210 is a complete housed bearing unit, not an individual ball bearing.

The exact configuration is:

Mounted Unit: UCP210
Bearing Insert: UC210
Shaft Diameter d: 50 mm
Housing Construction: two-bolt pillow block
Locking Style: set screw locking

Timken classifies UCP210 in its UCP 200 Pillow Block Mounted Bearings - Set Screw Locking series.

TIMKEN UCP210 Dimensions

Official Timken data specify:

d - Shaft Diameter: 50 mm
H - Base-to-Centre Height: 57.2 mm
L - Total Length: 206 mm
L1: 60 mm
A - Housing Width: 60 mm
H1 - Foot Height: 21 mm
H2 - Total Height: 113 mm
J - Bolt-Hole Spacing: 159 mm
N - Bolt-Hole Size: 20 mm
N1 - Bolt-Hole Length: 22 mm
B - Inner Ring Width: 51.6 mm
S - Bearing Centre from End: 19 mm
Recommended Bolt Size: M16
Weight: approximately 2.9 kg.

Because UCP210 is a complete housed bearing unit, it should not be described simply as a 50x206x51.6 mm bearing. Dimensions H, L, A, J, H2 and B identify different parts of the complete mounted unit.

UC210 Bearing Insert

TIMKEN UCP210 incorporates the UC210 wide inner ring ball bearing insert.

For the UC210 insert itself, Timken specifies:

d - Bore: 50 mm
D - Outside Diameter: 90 mm
B - Total Width: 51.6 mm
C - Outside Ring Width: 24 mm
S: 19 mm
S1: 32.6 mm
S2: 9 mm
Bore Type: cylindrical
Bearing Type: ball bearing.

This distinction is important:

UC210 = bearing insert
UCP210 = complete pillow block mounted bearing unit

Set-Screw Shaft Locking

A key construction feature of TIMKEN UCP210 is its set-screw locking system.

The UC210 insert is secured directly to the shaft by two set screws located in the wide inner ring. Timken specifies:

Number of Set Screws: 2
Set Screw Size: M10x1.25
Angle Between Set Screws: 120°.

This locking method should be considered when comparing UCP210 with units using eccentric locking collars, adapter sleeves or other shaft-locking systems.

Load Ratings

Official Timken data specify:

Basic Dynamic Radial Load Rating: 35,100 N = 35.1 kN
Basic Static Radial Load Rating: 23,300 N = 23.3 kN.

These catalogue ratings are bearing parameters. Selection for a specific machine should also consider actual load magnitude and direction, operating speed, mounting conditions, lubrication and required bearing life.

Mounting Dimensions

For replacement of an existing pillow block unit, the principal mounting dimensions are:

Shaft Diameter: 50 mm
Base-to-Centre Height H: 57.2 mm
Total Length L: 206 mm
Housing Width A: 60 mm
Bolt-Hole Spacing J: 159 mm
Bolt-Hole Size N: 20 mm
Bolt-Hole Length N1: 22 mm
Bolt Size: M16.

Matching the 50 mm shaft diameter alone is not sufficient to confirm complete installation compatibility.

What Does UCP210 Mean?

UCP identifies Timken's pillow block mounted bearing unit configuration using a UC-series insert with set-screw locking.

210 identifies the unit size. In the metric version, TIMKEN UCP210 has a 50 mm shaft bore and uses the UC210 bearing insert.

For clear product identification:

UCP210 → TIMKEN → pillow block mounted bearing unit → UC210 → 50 mm shaft → set-screw locking

This also distinguishes the metric UCP210 from inch-bore variants such as UCP210-30, UCP210-31 and UCP210-32.

UCP210 vs UC210

These designations identify different products.

UC210 is the ball bearing insert with a 50 mm cylindrical bore, 90 mm outside diameter and 51.6 mm total width.

UCP210 is the complete mounted unit containing the UC210 insert and a two-bolt pillow block housing.

This distinction is particularly important when ordering replacement components.

Selection and Interchangeability

When selecting an alternative to TIMKEN UCP210, verify:

• unit type: two-bolt pillow block mounted bearing unit,
• shaft diameter d = 50 mm,
• bearing insert: UC210,
• shaft locking: set screws,
• base-to-centre height H = 57.2 mm,
• total length L = 206 mm,
• housing width A = 60 mm,
• mounting-hole spacing J = 159 mm,
• mounting-hole dimensions N = 20 mm and N1 = 22 mm,
• inner ring width B = 51.6 mm,
• required load ratings.

A UCP210 designation from another manufacturer does not by itself confirm complete technical interchangeability. The dimensional drawing, locking system and operating requirements should also be compared.

Technical Specification

Manufacturer: TIMKEN
Designation: UCP210
Product Type: Pillow block mounted bearing unit
Housing Construction: Two-bolt pillow block
Bearing Insert: UC210
Bearing Type: Ball bearing
Bore Type: Cylindrical
Shaft Diameter d: 50 mm
Insert Outside Diameter D: 90 mm
Base-to-Centre Height H: 57.2 mm
Total Length L: 206 mm
L1: 60 mm
Housing Width A: 60 mm
Foot Height H1: 21 mm
Total Height H2: 113 mm
Bolt-Hole Spacing J: 159 mm
Bolt-Hole Size N: 20 mm
Bolt-Hole Length N1: 22 mm
Inner Ring Width B: 51.6 mm
S: 19 mm
Locking Style: Set screw locking
Set Screws: 2 x M10x1.25
Angle Between Set Screws: 120°
Bolt Size: M16
Dynamic Load Rating: 35.1 kN
Static Load Rating: 23.3 kN
Weight: approximately 2.9 kg.

FAQ

What shaft diameter is TIMKEN UCP210 designed for?

TIMKEN UCP210 is the metric version for a 50 mm shaft and incorporates the UC210 bearing insert.

What bearing insert is used in TIMKEN UCP210?

The complete UCP210 unit uses a TIMKEN UC210 wide inner ring ball bearing insert with a 50 mm bore and 90 mm outside diameter.

What are the main dimensions of TIMKEN UCP210?

The principal mounting dimensions are H = 57.2 mm, L = 206 mm, A = 60 mm and mounting-hole spacing J = 159 mm.

How is TIMKEN UCP210 secured to the shaft?

The UC210 insert uses two M10x1.25 set screws positioned 120° apart to secure the bearing to the shaft.

What are the load ratings of TIMKEN UCP210?

Timken specifies a dynamic load rating of 35.1 kN and a static load rating of 23.3 kN.

Is UC210 the same product as UCP210?

No. UC210 is the bearing insert, while UCP210 is the complete two-bolt pillow block mounted unit containing the UC210 insert.

Is UCP210 a 50 mm or 2-inch bearing unit?

The exact metric designation UCP210 has a 50 mm bore. Timken separately lists inch-bore variants, including UCP210-32 for a 2-inch shaft.

Can another manufacturer's UCP210 replace TIMKEN UCP210?

Not automatically. Verify the bore, centre height, mounting-hole spacing, housing dimensions, shaft-locking method and required load ratings before confirming interchangeability.

AI Overview

TIMKEN UCP210 is a two-bolt pillow block mounted bearing unit for a 50 mm shaft, incorporating a UC210 wide inner ring ball bearing with set-screw locking. Key dimensions are H = 57.2 mm, L = 206 mm and J = 159 mm. Timken specifies dynamic and static load ratings of 35.1 kN and 23.3 kN respectively.