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
CM-UCFX16D1
80
214
171
85.7
83.5
64
UCX16D1
FX16D1
CM-UCF315D1
75
236
184
82
113
77
UC315D1
F315D1
UKFX18D1
80
214
171
86
109
82
UKX18D1
FX18D1
UCFS315D1
75
236
184
82
113
77
UC315D1
FS315D1
C-UKFX18D1
80
214
171
86
109
82
UKX18D1
FX18D1
C-UCFS315D1
75
236
184
82
113
77
UC315D1
FS315D1
CM-UKFX18D1
80
214
171
86
109
82
UKX18D1
FX18D1
CM-UCFS315D1
75
236
184
82
113
77
UC315D1
FS315D1
UKF218D1
80
235
187
86
96
71.5
UK218D1
F218D1
UKF315D1
65
236
184
73
113
77
UK315D1
F315D1
C-UKFX16D1
70
214
171
78
83.5
64
UKX16D1
FX16D1
CM-UCFX15D1
75
197
152
82.6
72.5
53
UCX15D1
FX15D1
C-UKF315D1
65
236
184
73
113
77
UK315D1
F315D1
CM-UKFX16D1
70
214
171
78
83.5
64
UKX16D1
FX16D1
CM-UKF315D1
65
236
184
73
113
77
UK315D1
F315D1
UCF314D1
70
226
178
78
104
68
UC314D1
F314D1
UKFS315D1
65
236
184
73
113
77
UK315D1
FS315D1
C-UCF314D1
70
226
178
78
104
68
UC314D1
F314D1
C-UKFS315D1
65
236
184
73
113
77
UK315D1
FS315D1
CM-UCF314D1
70
226
178
78
104
68
UC314D1
F314D1
CM-UKFS315D1
65
236
184
73
113
77
UK315D1
FS315D1
UCFS314D1
70
226
178
78
104
68
UC314D1
FS314D1
UCF214D1
70
193
152
74.6
62
44
UC214D1
F214D1
C-UCFS314D1
70
226
178
78
104
68
UC314D1
FS314D1