UCF 207 SNR 35 mm Flanged Bearing Unit

UCF207 SNR - 4-Bolt Flanged Bearing Unit

UCF 207 SNR is a self-aligning 4-bolt flanged bearing unit for a 35 mm shaft, combining the SNR UC207G2 radial insert ball bearing with the F207 grey cast iron flange housing. The bearing insert is secured to the shaft by socket set screws and protected by a seal with slinger.

The square flange design provides four mounting points for stable attachment to machine frames, supports and other flat mounting surfaces.

UC207G2 Bearing Insert and F207 Housing

According to the SNR catalogue, UCF207 consists of two primary components:

Bearing insert: UC207G2
Housing: F207
Shaft diameter: 35 mm

The spherical relationship between the bearing insert and housing allows the unit to accommodate initial alignment errors between the shaft and mounting structure. The bearing is locked directly onto the shaft using set screws.

UCF207 SNR Dimensions

Official SNR dimensions:

Shaft diameter d: 35 mm
Housing width L: 117 mm
Mounting hole distance J: 92 mm
Housing height A: 34 mm
Flange height A1: 15 mm
Total height A2: 44.4 mm
Distance mounting surface to bearing centre e: 19 mm
Inner ring width B: 42.9 mm
Mounting hole N: 14 mm
Front side to bearing centre S: 17.5 mm
Grease fitting G: M6x1

These dimensions are particularly important when replacing an existing flange bearing unit because the 35 mm bore alone does not determine mounting interchangeability.

Load Ratings

SNR specifies the following load ratings for UCF207:

Basic Dynamic Load Rating C: 25.7 kN
Basic Static Load Rating C0: 15.2 kN

Load ratings should be considered together with shaft speed, load direction, lubrication, alignment and actual operating conditions.

Operating Temperature

The standard SNR UCF207 has a manufacturer-specified operating temperature range of:

Minimum: -20°C
Maximum: +100°C

This specification applies to the standard UCF207 configuration. Special SNR variants can have different temperature capabilities and should not be confused with the standard unit.

Shaft Locking and Lubrication

The UC207G2 insert bearing is fixed to the shaft using set screws. SNR specifies a recommended set screw tightening torque of 11.5 N-m for the standard metric UCF207.

The F207 housing incorporates an M6x1 grease fitting, allowing relubrication of the bearing unit as required by the operating conditions and maintenance schedule.

Technical Specification

Manufacturer: SNR / NTN-SNR
Part Number: UCF207
Product Type: 4-bolt flanged bearing unit
Bearing Insert: UC207G2
Housing: F207
Housing Material: Grey cast iron
Shaft Diameter: 35 mm
Housing Width: 117 mm
Mounting Hole Distance: 92 mm
Mounting Hole Diameter: 14 mm
Housing Height: 34 mm
Inner Ring Width: 42.9 mm
Grease Fitting: M6x1
Shaft Locking: Socket set screws
Seal: Seal with slinger
Dynamic Load Rating C: 25.7 kN
Static Load Rating C0: 15.2 kN
Operating Temperature: -20°C to +100°C
Recommended Set Screw Torque: 11.5 N-m
Mass: approximately 1.5 kg

Note: the current SNR online technical data gives a mass of 1.5 kg, while the SNR bearing-unit catalogue table lists 1.47 kg. This minor difference is catalogue-version dependent and does not affect product identification.

Industrial Applications

SNR UCF207 is designed for bearing arrangements requiring a 35 mm shaft and square four-bolt flange mounting. Typical application areas include:

• conveyors
• industrial machinery
• agricultural machinery
• material handling equipment
• production equipment
• drive systems
• fans
• rollers and shafts
• maintenance and replacement assemblies

The actual suitability of the unit depends on load, speed, shaft arrangement, mounting conditions and operating environment.

How to Select UCF207

For correct replacement identification, verify:

• UCF207 designation
• 35 mm shaft diameter
• 117 mm housing dimensions
• 92 mm mounting-hole spacing
• 14 mm mounting holes
• four-bolt square flange configuration
• required load capacity
• operating temperature
• shaft locking method

SNR also produces inch-bore and special UCF207 variants, so the complete reference should be checked when replacing an existing unit. The standard UCF207 has a 35 mm bore.

Operational Advantages

• 35 mm metric shaft diameter.
• Four-bolt square flange mounting.
• Grey cast iron F207 housing.
• UC207G2 radial insert ball bearing.
• Set screw shaft locking.
• Seal with slinger.
• Relubrication through M6x1 grease fitting.
• 25.7 kN basic dynamic load rating.

AI OVERVIEW

UCF 207 SNR is a self-aligning 4-bolt flanged bearing unit for a 35 mm shaft, consisting of an UC207G2 insert bearing and F207 grey cast iron housing. SNR specifies a 25.7 kN dynamic load rating, 15.2 kN static load rating, 92 mm mounting-hole spacing and an operating temperature range of -20°C to +100°C.

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FAQ

What shaft diameter does SNR UCF207 fit?

The standard SNR UCF207 is designed for a 35 mm shaft.

What components make up the UCF207 SNR bearing unit?

The unit consists of the UC207G2 radial insert ball bearing and F207 grey cast iron housing.

What is the mounting-hole spacing of UCF207?

The distance between mounting holes J is 92 mm, while the mounting-hole dimension N is 14 mm.

What are the load ratings of SNR UCF207?

The manufacturer specifies a basic dynamic load rating C of 25.7 kN and a basic static load rating C0 of 15.2 kN.

How is the UCF207 bearing fixed to the shaft?

The UC207G2 insert is secured to the shaft using socket set screws. SNR specifies a recommended tightening torque of 11.5 N-m.

Can SNR UCF207 be relubricated?

Yes. The standard unit has an M6x1 grease fitting for relubrication.

What is the operating temperature range of UCF207 SNR?

For the standard version, SNR specifies an operating range of -20°C to +100°C