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
UCF316D1
80
250
196
86
123
86.5
UC316D1
F316D1
CM-UCF215D1
75
200
159
77.8
66
49.5
UC215D1
F215D1
UKFS317D1
75
260
204
82
133
97
UK317D1
FS317D1
C-UCF316D1
80
250
196
86
123
86.5
UC316D1
F316D1
UKFX17D1
75
214
171
82
96
71.5
UKX17D1
FX17D1
C-UKFS317D1
75
260
204
82
133
97
UK317D1
FS317D1
CM-UCF316D1
80
250
196
86
123
86.5
UC316D1
F316D1
C-UKFX17D1
75
214
171
82
96
71.5
UKX17D1
FX17D1
CM-UKFS317D1
75
260
204
82
133
97
UK317D1
FS317D1
UCFS316D1
80
250
196
86
123
86.5
UC316D1
FS316D1
CM-UKFX17D1
75
214
171
82
96
71.5
UKX17D1
FX17D1
UCF216D1
80
208
165
82.6
72.5
53
UC216D1
F216D1
C-UCFS316D1
80
250
196
86
123
86.5
UC316D1
FS316D1
UKF217D1
75
220
175
82
83.5
64
UK217D1
F217D1
C-UCF216D1
80
208
165
82.6
72.5
53
UC216D1
F216D1
CM-UCFS316D1
80
250
196
86
123
86.5
UC316D1
FS316D1
C-UKF217D1
75
220
175
82
83.5
64
UK217D1
F217D1
CM-UCF216D1
80
208
165
82.6
72.5
53
UC216D1
F216D1
UKF318D1
80
280
216
86
143
107
UK318D1
F318D1
CM-UKF217D1
75
220
175
82
83.5
64
UK217D1
F217D1
UCFX16D1
80
214
171
85.7
83.5
64
UCX16D1
FX16D1
UCF315D1
75
236
184
82
113
77
UC315D1
F315D1
C-UCFX16D1
80
214
171
85.7
83.5
64
UCX16D1
FX16D1
C-UCF315D1
75
236
184
82
113
77
UC315D1
F315D1