Square Flanged Units

**Introduction to NSK Bearing Units: Flanged Ball Bearing Units (Square Flanged Units)**

NSK’s **Flanged Ball Bearing Units (Square Flanged Units)** represent a robust and precision-engineered solution for applications demanding reliable rotational motion, high load capacity, and ease of installation. Designed for industrial machinery, automotive systems, and precision equipment, these bearing units combine NSK’s advanced bearing technology with a durable housing design to deliver exceptional performance in harsh operating environments.

### **Technical Features & Design Advantages**
The **Square Flanged Units** feature a compact, integrally cast housing with a square flange for secure mounting, ensuring stability and precise alignment in confined spaces. Key technical highlights include:

– **High-Performance Bearings**: Equipped with deep-groove ball bearings manufactured to NSK’s exacting standards, these units offer low friction, high-speed capability, and extended service life.
– **Robust Housing**: The housing is typically made from high-strength cast iron or pressed steel, providing rigidity and resistance to shock loads, vibration, and contamination.
– **Sealing Solutions**: Advanced sealing options (e.g., rubber seals or metal shields) protect against dust, moisture, and debris, enhancing reliability in demanding conditions.
– **Pre-Applied Lubrication**: Factory-lubricated with high-quality grease, reducing maintenance requirements and ensuring smooth operation from installation.
– **Easy Mounting**: The square flange design simplifies alignment and fastening, while the standardized dimensions (e.g., ISO or JIS compliance) ensure interchangeability.

### **Performance Benefits**
NSK’s Square Flanged Bearing Units excel in applications where durability, precision, and efficiency are critical:

– **High Load Capacity**: Optimized internal geometry supports radial and moderate axial loads, making them ideal for conveyor systems, gearboxes, and agricultural machinery.
– **Energy Efficiency**: Low torque and friction reduce power consumption, contributing to sustainable operations.
– **Reduced Downtime**: The sealed, long-life design minimizes wear and contamination-related failures, lowering total cost of ownership.

### **Typical Applications**
These units are widely used across industries, including:
– **Industrial Machinery**: Conveyors, pumps, fans, and material handling systems.
– **Automotive Systems**: Auxiliary drives, tensioners, and transmission components.
– **Precision Equipment**: Packaging machines, printing rollers, and food processing lines.

By integrating **NSK’s Square Flanged Bearing Units**, engineers can achieve reliable, maintenance-free motion control with the assurance of NSK’s global reputation for precision and durability. Whether in high-load industrial settings or precision-critical automation, these units deliver consistent performance under pressure.

For specialized requirements, NSK offers customization options, including material variants, sealing upgrades, and corrosion-resistant coatings—ensuring optimal performance for every application.

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Designations Nominal Dimensions Basic Load Ratings Included products
d
mm
L
mm
J
mm
B,B1,B2
mm
Cr
kN
C0r
kN
Bearing Housing
UCF324D1
120
370
290
126
207
185
UC324D1
F324D1
C-UCFS326D1
130
410
320
135
229
214
UC326D1
FS326D1
C-UCF324D1
120
370
290
126
207
185
UC324D1
F324D1
CM-UCFS326D1
130
410
320
135
229
214
UC326D1
FS326D1
CM-UCF324D1
120
370
290
126
207
185
UC324D1
F324D1
UCF328D1
140
450
350
145
253
246
UC328D1
F328D1
UCFS324D1
120
370
290
126
207
185
UC324D1
FS324D1
C-UCF328D1
140
450
350
145
253
246
UC328D1
F328D1
C-UCFS324D1
120
370
290
126
207
185
UC324D1
FS324D1
CM-UCF328D1
140
450
350
145
253
246
UC328D1
F328D1
CM-UCFS324D1
120
370
290
126
207
185
UC324D1
FS324D1
UCFS328D1
140
450
350
145
253
246
UC328D1
FS328D1
UKF328D1
125
450
350
131
253
246
UK328D1
F328D1
C-UCFS328D1
140
450
350
145
253
246
UC328D1
FS328D1
UKFS324D1
110
370
290
112
207
185
UK324D1
FS324D1
C-UKF328D1
125
450
350
131
253
246
UK328D1
F328D1
CM-UCFS328D1
140
450
350
145
253
246
UC328D1
FS328D1
C-UKFS324D1
110
370
290
112
207
185
UK324D1
FS324D1
CM-UKF328D1
125
450
350
131
253
246
UK328D1
F328D1
CM-UKFS324D1
110
370
290
112
207
185
UK324D1
FS324D1