• SKF UCF Square 4-Bolt Flanged Ball Bearing Units (JIS)
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SKF UCF Square 4-Bolt Flanged Ball Bearing Units (JIS)

SKF UCF Square 4-Bolt Flanged Ball Bearing Units (JIS)

SKF UCF insert bearing units with a square 4-bolt flange housing and a UC insert bearing with set screws, interchangeable with JIS-standard units.

Key features

  • Complete unit: cast iron housing with UC insert bearing
  • Set screw locking for easy mounting on the shaft
  • JIS-compatible dimensions for direct replacement
  • Relubrication via grease nipple
  • End covers (ECY) ordered separately where listed

Specifications

Series UCF
Housing Square 4-bolt flange housing
Insert bearing UC series, set screws
Standard JIS compatible
Brand SKF
Source SKF insert bearing units UC range (JIS), p. 12-15
UCF 204 Shaft: 20 mm | C: 12.7 kN | C0: 6.7 kN | Flange L: 85.7 mm | Bolt spacing J: 64 mm | Mass: 0.49 kg
UCF 205 Shaft: 25 mm | C: 14.0 kN | C0: 7.8 kN | Flange L: 95.3 mm | Bolt spacing J: 70 mm | Mass: 0.63 kg
UCF 206 Shaft: 30 mm | C: 19.5 kN | C0: 11.4 kN | Flange L: 108 mm | Bolt spacing J: 83 mm | Mass: 0.89 kg
UCF 306 Shaft: 30 mm | C: 26.5 kN | C0: 15.0 kN | Flange L: 127 mm | Bolt spacing J: 95 mm | Mass: 1.75 kg
UCF 207 Shaft: 35 mm | C: 25.5 kN | C0: 15.3 kN | Flange L: 117.5 mm | Bolt spacing J: 92 mm | Mass: 1.25 kg
UCF 307 Shaft: 35 mm | C: 33.2 kN | C0: 19.3 kN | Flange L: 137 mm | Bolt spacing J: 100 mm | Mass: 2.1 kg
UCF 208 Shaft: 40 mm | C: 32.5 kN | C0: 20.0 kN | Flange L: 130.2 mm | Bolt spacing J: 102 mm | Mass: 1.69 kg
UCF 308 Shaft: 40 mm | C: 41.0 kN | C0: 24.0 kN | Flange L: 149 mm | Bolt spacing J: 112 mm | Mass: 2.95 kg
UCF 209 Shaft: 45 mm | C: 32.5 kN | C0: 20.4 kN | Flange L: 136.5 mm | Bolt spacing J: 105 mm | Mass: 1.96 kg
UCF 309 Shaft: 45 mm | C: 52.7 kN | C0: 32.0 kN | Flange L: 162 mm | Bolt spacing J: 125 mm | Mass: 3.80 kg
UCF 210 Shaft: 50 mm | C: 35.1 kN | C0: 23.2 kN | Flange L: 142.9 mm | Bolt spacing J: 111 mm | Mass: 2.23 kg
UCF 310 Shaft: 50 mm | C: 61.8 kN | C0: 38.0 kN | Flange L: 175 mm | Bolt spacing J: 132 mm | Mass: 5.05 kg
UCF 211 Shaft: 55 mm | C: 43.6 kN | C0: 29.0 kN | Flange L: 161.9 mm | Bolt spacing J: 130 mm | Mass: 3.60 kg
UCF 311 Shaft: 55 mm | C: 71.5 kN | C0: 45.0 kN | Flange L: 183 mm | Bolt spacing J: 140 mm | Mass: 5.5 kg
UCF 212 Shaft: 60 mm | C: 52.7 kN | C0: 36.0 kN | Flange L: 174.6 mm | Bolt spacing J: 143 mm | Mass: 3.97 kg
UCF 312 Shaft: 60 mm | C: 81.9 kN | C0: 52.0 kN | Flange L: 193 mm | Bolt spacing J: 150 mm | Mass: 7 kg
UCF 213 Shaft: 65 mm | C: 57.2 kN | C0: 40.0 kN | Flange L: 187.3 mm | Bolt spacing J: 149 mm | Mass: 5.08 kg
UCF 214 Shaft: 70 mm | C: 62.4 kN | C0: 44.0 kN | Flange L: 192.9 mm | Bolt spacing J: 152 mm | Mass: 5.34 kg
UCF 215 Shaft: 75 mm | C: 66.3 kN | C0: 49.0 kN | Flange L: 200 mm | Bolt spacing J: 159 mm | Mass: 5.86 kg
UCF 315 Shaft: 75 mm | C: 114.0 kN | C0: 76.5 kN | Flange L: 229 mm | Bolt spacing J: 184 mm | Mass: 11.6 kg
UCF 216 Shaft: 80 mm | C: 71.5 kN | C0: 54.0 kN | Flange L: 207.9 mm | Bolt spacing J: 165 mm | Mass: 7.02 kg
UCF 316 Shaft: 80 mm | C: 124.0 kN | C0: 86.5 kN | Flange L: 252 mm | Bolt spacing J: 196 mm | Mass: 15.4 kg
UCF 217 Shaft: 85 mm | C: 83.2 kN | C0: 64.0 kN | Flange L: 219.9 mm | Bolt spacing J: 175 mm | Mass: 8.91 kg
UCF 218 Shaft: 90 mm | C: 95.6 kN | C0: 72.0 kN | Flange L: 234.9 mm | Bolt spacing J: 187 mm | Mass: 11.38 kg
UCF 320 Shaft: 100 mm | C: 174.0 kN | C0: 140.0 kN | Flange L: 312 mm | Bolt spacing J: 242 mm | Mass: 29.8 kg
UCF 204-12 Shaft: 3/4 in. | C: 12.7 kN | C0: 6.7 kN | Flange L: 85.7 mm | Bolt spacing J: 64 mm | Mass: 0.50 kg
UCF 205-14 Shaft: 7/8 in. | C: 14.0 kN | C0: 7.8 kN | Flange L: 95.3 mm | Bolt spacing J: 70 mm | Mass: 0.65 kg
UCF 205-15 Shaft: 15/16 in. | C: 14.0 kN | C0: 7.8 kN | Flange L: 95.3 mm | Bolt spacing J: 70 mm | Mass: 0.64 kg
UCF 205-16 Shaft: 1 in. | C: 14.0 kN | C0: 7.8 kN | Flange L: 95.3 mm | Bolt spacing J: 70 mm | Mass: 0.62 kg
UCF 206-18 Shaft: 1 1/8 in. | C: 19.5 kN | C0: 11.4 kN | Flange L: 108 mm | Bolt spacing J: 83 mm | Mass: 0.91 kg
UCF 206-19 Shaft: 1 3/16 in. | C: 19.5 kN | C0: 11.4 kN | Flange L: 108 mm | Bolt spacing J: 83 mm | Mass: 0.89 kg
UCF 207-20 Shaft: 1 1/4 in. | C: 25.5 kN | C0: 15.3 kN | Flange L: 117.5 mm | Bolt spacing J: 92 mm | Mass: 1.31 kg
UCF 207-22 Shaft: 1 3/8 in. | C: 25.5 kN | C0: 15.3 kN | Flange L: 117.5 mm | Bolt spacing J: 92 mm | Mass: 1.25 kg
UCF 207-23 Shaft: 1 7/16 in. | C: 25.5 kN | C0: 15.3 kN | Flange L: 117.5 mm | Bolt spacing J: 92 mm | Mass: 1.22 kg
UCF 208-24 Shaft: 1 1/2 in. | C: 32.5 kN | C0: 20.0 kN | Flange L: 130.2 mm | Bolt spacing J: 102 mm | Mass: 1.73 kg
UCF 209-28 Shaft: 1 3/4 in. | C: 32.5 kN | C0: 20.4 kN | Flange L: 136.5 mm | Bolt spacing J: 105 mm | Mass: 1.97 kg
UCF 211-32 Shaft: 2 in. | C: 43.6 kN | C0: 29.0 kN | Flange L: 161.9 mm | Bolt spacing J: 130 mm | Mass: 3.75 kg
UCF 212-36 Shaft: 2 1/4 in. | C: 52.7 kN | C0: 36.0 kN | Flange L: 174.6 mm | Bolt spacing J: 143 mm | Mass: 4.10 kg
UCF 213-40 Shaft: 2 1/2 in. | C: 57.2 kN | C0: 40.0 kN | Flange L: 187.3 mm | Bolt spacing J: 149 mm | Mass: 5.16 kg
UCF 315-48 Shaft: 3 in. | C: 114 kN | C0: 76.5 kN | Flange L: 229 mm | Bolt spacing J: 184 mm | Mass: 11.6 kg
UCF 320-64 Shaft: 4 in. | C: 174 kN | C0: 140 kN | Flange L: 312 mm | Bolt spacing J: 242 mm | Mass: 29.5 kg
Mounted Bearing UnitsSKF
41 product codes available in this family
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SKF UCF Square 4-Bolt Flanged Ball Bearing Units (JIS)

Brand SKF·Mounted Bearing Units

Available part numbers (41)

UCF 204, UCF 205, UCF 206, UCF 306, UCF 207, UCF 307, UCF 208, UCF 308, UCF 209, UCF 309 + 31 more — see full table ↓

How to order

Send the SKF part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

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Product codes & specifications
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Product codeSpec
UCF 204Shaft: 20 mm | C: 12.7 kN | C0: 6.7 kN | Flange L: 85.7 mm | Bolt spacing J: 64 mm | Mass: 0.49 kg
UCF 205Shaft: 25 mm | C: 14.0 kN | C0: 7.8 kN | Flange L: 95.3 mm | Bolt spacing J: 70 mm | Mass: 0.63 kg
UCF 206Shaft: 30 mm | C: 19.5 kN | C0: 11.4 kN | Flange L: 108 mm | Bolt spacing J: 83 mm | Mass: 0.89 kg
UCF 306Shaft: 30 mm | C: 26.5 kN | C0: 15.0 kN | Flange L: 127 mm | Bolt spacing J: 95 mm | Mass: 1.75 kg
UCF 207Shaft: 35 mm | C: 25.5 kN | C0: 15.3 kN | Flange L: 117.5 mm | Bolt spacing J: 92 mm | Mass: 1.25 kg
UCF 307Shaft: 35 mm | C: 33.2 kN | C0: 19.3 kN | Flange L: 137 mm | Bolt spacing J: 100 mm | Mass: 2.1 kg
UCF 208Shaft: 40 mm | C: 32.5 kN | C0: 20.0 kN | Flange L: 130.2 mm | Bolt spacing J: 102 mm | Mass: 1.69 kg
UCF 308Shaft: 40 mm | C: 41.0 kN | C0: 24.0 kN | Flange L: 149 mm | Bolt spacing J: 112 mm | Mass: 2.95 kg
UCF 209Shaft: 45 mm | C: 32.5 kN | C0: 20.4 kN | Flange L: 136.5 mm | Bolt spacing J: 105 mm | Mass: 1.96 kg
UCF 309Shaft: 45 mm | C: 52.7 kN | C0: 32.0 kN | Flange L: 162 mm | Bolt spacing J: 125 mm | Mass: 3.80 kg
UCF 210Shaft: 50 mm | C: 35.1 kN | C0: 23.2 kN | Flange L: 142.9 mm | Bolt spacing J: 111 mm | Mass: 2.23 kg
UCF 310Shaft: 50 mm | C: 61.8 kN | C0: 38.0 kN | Flange L: 175 mm | Bolt spacing J: 132 mm | Mass: 5.05 kg
UCF 211Shaft: 55 mm | C: 43.6 kN | C0: 29.0 kN | Flange L: 161.9 mm | Bolt spacing J: 130 mm | Mass: 3.60 kg
UCF 311Shaft: 55 mm | C: 71.5 kN | C0: 45.0 kN | Flange L: 183 mm | Bolt spacing J: 140 mm | Mass: 5.5 kg
UCF 212Shaft: 60 mm | C: 52.7 kN | C0: 36.0 kN | Flange L: 174.6 mm | Bolt spacing J: 143 mm | Mass: 3.97 kg
UCF 312Shaft: 60 mm | C: 81.9 kN | C0: 52.0 kN | Flange L: 193 mm | Bolt spacing J: 150 mm | Mass: 7 kg
UCF 213Shaft: 65 mm | C: 57.2 kN | C0: 40.0 kN | Flange L: 187.3 mm | Bolt spacing J: 149 mm | Mass: 5.08 kg
UCF 214Shaft: 70 mm | C: 62.4 kN | C0: 44.0 kN | Flange L: 192.9 mm | Bolt spacing J: 152 mm | Mass: 5.34 kg
UCF 215Shaft: 75 mm | C: 66.3 kN | C0: 49.0 kN | Flange L: 200 mm | Bolt spacing J: 159 mm | Mass: 5.86 kg
UCF 315Shaft: 75 mm | C: 114.0 kN | C0: 76.5 kN | Flange L: 229 mm | Bolt spacing J: 184 mm | Mass: 11.6 kg
UCF 216Shaft: 80 mm | C: 71.5 kN | C0: 54.0 kN | Flange L: 207.9 mm | Bolt spacing J: 165 mm | Mass: 7.02 kg
UCF 316Shaft: 80 mm | C: 124.0 kN | C0: 86.5 kN | Flange L: 252 mm | Bolt spacing J: 196 mm | Mass: 15.4 kg
UCF 217Shaft: 85 mm | C: 83.2 kN | C0: 64.0 kN | Flange L: 219.9 mm | Bolt spacing J: 175 mm | Mass: 8.91 kg
UCF 218Shaft: 90 mm | C: 95.6 kN | C0: 72.0 kN | Flange L: 234.9 mm | Bolt spacing J: 187 mm | Mass: 11.38 kg
UCF 320Shaft: 100 mm | C: 174.0 kN | C0: 140.0 kN | Flange L: 312 mm | Bolt spacing J: 242 mm | Mass: 29.8 kg
UCF 204-12Shaft: 3/4 in. | C: 12.7 kN | C0: 6.7 kN | Flange L: 85.7 mm | Bolt spacing J: 64 mm | Mass: 0.50 kg
UCF 205-14Shaft: 7/8 in. | C: 14.0 kN | C0: 7.8 kN | Flange L: 95.3 mm | Bolt spacing J: 70 mm | Mass: 0.65 kg
UCF 205-15Shaft: 15/16 in. | C: 14.0 kN | C0: 7.8 kN | Flange L: 95.3 mm | Bolt spacing J: 70 mm | Mass: 0.64 kg
UCF 205-16Shaft: 1 in. | C: 14.0 kN | C0: 7.8 kN | Flange L: 95.3 mm | Bolt spacing J: 70 mm | Mass: 0.62 kg
UCF 206-18Shaft: 1 1/8 in. | C: 19.5 kN | C0: 11.4 kN | Flange L: 108 mm | Bolt spacing J: 83 mm | Mass: 0.91 kg
UCF 206-19Shaft: 1 3/16 in. | C: 19.5 kN | C0: 11.4 kN | Flange L: 108 mm | Bolt spacing J: 83 mm | Mass: 0.89 kg
UCF 207-20Shaft: 1 1/4 in. | C: 25.5 kN | C0: 15.3 kN | Flange L: 117.5 mm | Bolt spacing J: 92 mm | Mass: 1.31 kg
UCF 207-22Shaft: 1 3/8 in. | C: 25.5 kN | C0: 15.3 kN | Flange L: 117.5 mm | Bolt spacing J: 92 mm | Mass: 1.25 kg
UCF 207-23Shaft: 1 7/16 in. | C: 25.5 kN | C0: 15.3 kN | Flange L: 117.5 mm | Bolt spacing J: 92 mm | Mass: 1.22 kg
UCF 208-24Shaft: 1 1/2 in. | C: 32.5 kN | C0: 20.0 kN | Flange L: 130.2 mm | Bolt spacing J: 102 mm | Mass: 1.73 kg
UCF 209-28Shaft: 1 3/4 in. | C: 32.5 kN | C0: 20.4 kN | Flange L: 136.5 mm | Bolt spacing J: 105 mm | Mass: 1.97 kg
UCF 211-32Shaft: 2 in. | C: 43.6 kN | C0: 29.0 kN | Flange L: 161.9 mm | Bolt spacing J: 130 mm | Mass: 3.75 kg
UCF 212-36Shaft: 2 1/4 in. | C: 52.7 kN | C0: 36.0 kN | Flange L: 174.6 mm | Bolt spacing J: 143 mm | Mass: 4.10 kg
UCF 213-40Shaft: 2 1/2 in. | C: 57.2 kN | C0: 40.0 kN | Flange L: 187.3 mm | Bolt spacing J: 149 mm | Mass: 5.16 kg
UCF 315-48Shaft: 3 in. | C: 114 kN | C0: 76.5 kN | Flange L: 229 mm | Bolt spacing J: 184 mm | Mass: 11.6 kg
UCF 320-64Shaft: 4 in. | C: 174 kN | C0: 140 kN | Flange L: 312 mm | Bolt spacing J: 242 mm | Mass: 29.5 kg

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