Bearing unit UCF type
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Bearing Unit Introduction
Cast-iron housing units serve as elements of the so-called bearing units. These units are formed together with all kinds of insert ball bearings. Housing units can be divided into three types: P, F, and T. P-type housings have fixing bores pointing out at right angle to the shaft axis, and they are commonly called “standing” housing units, whereas in the PA-version bores are made in the housing itself and in the A-type they are located in the housing’s flanges. The fixing bores of F-type housing units are arranged parallel to the shaft axis. Square-shaped F-type has four bores, FL-type shaped as an extended ellipse has two fixing bores and the circular FC-type housing unit has four fixing bores. The most specific features have the T-type housing unit, called a tension-fixing housing.
Bearing unit UCF type structure diagram

Bearing unit UCF type structure diagram
Bearing Number | Dimensions (mm) | Bolt Size | Bearing No. | Housing No. | Weight (kg) | |||||||||
d | a | e | i | g | l | s | z | B | N | |||||
UCF201 | 12 | 86 | 64 | 15 | 12 | 25.5 | 12 | 33.3 | 31 | 12.7 | MID | UC201 | F201 | 0.60 |
UCF201-8 | 12 | 86 | 64 | 15 | 12 | 25.5 | 12 | 33.3 | 31 | 12.7 | MID | UC201-8 | F201 | 0.59 |
UCF202 | 15 | 86 | 64 | 15 | 12 | 25.5 | 12 | 33.3 | 31 | 12.7 | MID | UC202 | F202 | 0.59 |
UCF202-9 | 15 | 86 | 64 | 15 | 12 | 25.5 | 12 | 33.3 | 31 | 12.7 | MID | UC202-9 | F202 | 0.58 |
UCF202-10 | 15 | 86 | 64 | 15 | 12 | 25.5 | 12 | 33.3 | 31 | 12.7 | MID | UC202-10 | F202 | 0.58 |
UCF203 | 17 | 86 | 64 | 15 | 12 | 25.5 | 12 | 33.3 | 31 | 12.7 | MID | UC203 | F203 | 0.58 |
UCF203-11 | 17 | 86 | 64 | 15 | 12 | 25.5 | 12 | 33.3 | 31 | 12.7 | MID | UC203-11 | F203 | 0.57 |
UCF204 | 20 | 86 | 64 | 15 | 12 | 25.5 | 12 | 33.3 | 31 | 12.7 | MID | UC204 | F204 | 0.56 |
UCF204-12 | 20 | 86 | 64 | 15 | 12 | 25.5 | 12 | 33.3 | 31 | 12.7 | MID | UC204-12 | F204 | 0.56 |
UCF205 | 25 | 95 | 70 | 16 | 14 | 27 | 12 | 35.8 | 34.1 | 14.3 | MID | UC205 | F205 | 0.80 |
UCF205-13 | 25 | 95 | 70 | 16 | 14 | 27 | 12 | 35.8 | 34.1 | 14.3 | MID | UC205-13 | F205 | 0.84 |
UCF205-14 | 25 | 95 | 70 | 16 | 14 | 27 | 12 | 35.8 | 34.1 | 14.3 | MID | UC205-14 | F205 | 0.83 |
UCF205-15 | 25 | 95 | 70 | 16 | 14 | 27 | 12 | 35.8 | 34.1 | 14.3 | MID | UC205-15 | F205 | 0.81 |
UCF205-16 | 25 | 95 | 70 | 16 | 14 | 27 | 12 | 35.8 | 34.1 | 14.3 | MID | UC205-16 | F205 | 0.80 |
UCF206 | 30 | 108 | 83 | 18 | 14 | 31 | 12 | 40.2 | 38.1 | 15.9 | MID | UC206 | F206 | 1.12 |
UCF206-17 | 30 | 108 | 83 | 18 | 14 | 31 | 12 | 40.2 | 38.1 | 15.9 | MID | UC206-17 | F206 | 1.13 |
UCF206-18 | 30 | 108 | 83 | 18 | 14 | 31 | 12 | 40.2 | 38.1 | 15.9 | MID | UC206-18 | F206 | 1.14 |
UCF206-19 | 30 | 108 | 83 | 18 | 14 | 31 | 12 | 40.2 | 38.1 | 15.9 | MID | UC206-19 | F206 | 1.12 |
UCF206-20 | 30 | 108 | 83 | 18 | 14 | 31 | 12 | 40.2 | 38.1 | 15.9 | MID | UC206-20 | F206 | 1.11 |
UCF207 | 35 | 117 | 92 | 19 | 16 | 34 | 14 | 44.4 | 42.9 | 17.5 | M12 | UC207 | F207 | 1.46 |
UCF207-20 | 36 | 117 | 92 | 19 | 16 | 34 | 14 | 44.4 | 42.9 | 17.5 | M12 | UC207-20 | F207 | 1.52 |
UCF207-21 | 37 | 117 | 92 | 19 | 16 | 34 | 14 | 44.4 | 42.9 | 17.5 | M12 | UC207-21 | F207 | 1.49 |
UCF207-22 | 38 | 117 | 92 | 19 | 16 | 34 | 14 | 44.4 | 42.9 | 17.5 | M12 | UC207-22 | F207 | 1.46 |
UCF207-23 | 39 | 117 | 92 | 19 | 16 | 34 | 14 | 44.4 | 42.9 | 17.5 | M12 | UC207-23 | F207 | 1.43 |
UCF208 | 40 | 130 | 102 | 21 | 16 | 36 | 16 | 51.2 | 49.2 | 19 | M14 | UC208 | F208 | 1.84 |
UCF208-24 | 40 | 130 | 102 | 21 | 16 | 36 | 16 | 51.2 | 49.2 | 19 | M14 | UC208-24 | F208 | 1.88 |
UCF208-25 | 40 | 130 | 102 | 21 | 16 | 36 | 16 | 51.2 | 49.2 | 19 | M14 | UC208-25 | F208 | 1.85 |
UCF209 | 45 | 137 | 105 | 22 | 18 | 38 | 16 | 52.2 | 49.2 | 19 | M14 | UC209 | F209 | 2.15 |
UCF209-26 | 45 | 137 | 105 | 22 | 18 | 38 | 16 | 52.2 | 49.2 | 19 | M14 | UC209-26 | F209 | 2.25 |
UCF209-27 | 45 | 137 | 105 | 22 | 18 | 38 | 16 | 52.2 | 49.2 | 19 | M14 | UC209-27 | F209 | 2.21 |
UCF209-28 | 45 | 137 | 105 | 22 | 18 | 38 | 16 | 52.2 | 49.2 | 19 | M14 | UC209-28 | F209 | 2.17 |
UCF210 | 50 | 143 | 111 | 22 | 18 | 40 | 16 | 54.6 | 51.6 | 19 | M14 | UC210 | F210 | 2.42 |
UCF210-29 | 51 | 143 | 111 | 22 | 18 | 40 | 16 | 54.6 | 51.6 | 19 | M14 | UC210-29 | F210 | 2.54 |
UCF210-30 | 52 | 143 | 111 | 22 | 18 | 40 | 16 | 54.6 | 51.6 | 19 | M14 | UC210-30 | F210 | 2.49 |
UCF210-31 | 53 | 143 | 111 | 22 | 18 | 40 | 16 | 54.6 | 51.6 | 19 | M14 | UC210-31 | F210 | 2.44 |
UCF210-32 | 54 | 143 | 111 | 22 | 18 | 40 | 16 | 54.6 | 51.6 | 19 | M14 | UC210-32 | F210 | 2.40 |
UCF211 | 55 | 162 | 130 | 25 | 20 | 43 | 19 | 58.4 | 55.6 | 22.2 | M16 | UC211 | F211 | 3.31 |
UCF211-32 | 55 | 162 | 130 | 25 | 20 | 43 | 19 | 58.4 | 55.6 | 22.2 | M16 | UC211-32 | F211 | 3.46 |
UCF211-33 | 55 | 162 | 130 | 25 | 20 | 43 | 19 | 58.4 | 55.6 | 22.2 | M16 | UC211-33 | F211 | 3.40 |
UCF211-34 | 55 | 162 | 130 | 25 | 20 | 43 | 19 | 58.4 | 55.6 | 22.2 | M16 | UC211-34 | F211 | 3.35 |
UCF211-35 | 55 | 162 | 130 | 25 | 20 | 43 | 19 | 58.4 | 55.6 | 22.2 | M16 | UC211-35 | F211 | 3.29 |
UCF212 | 60 | 175 | 143 | 29 | 20 | 48 | 19 | 68.7 | 65.1 | 25.4 | M16 | UC212 | F212 | 4.28 |
UCF212-36 | 60 | 175 | 143 | 29 | 20 | 48 | 19 | 68.7 | 65.1 | 25.4 | M16 | UC212-36 | F212 | 4.41 |
UCF212-37 | 60 | 175 | 143 | 29 | 20 | 48 | 19 | 68.7 | 65.1 | 25.4 | M16 | UC212-37 | F212 | 4.33 |
UCF212-38 | 60 | 175 | 143 | 29 | 20 | 48 | 19 | 68.7 | 65.1 | 25.4 | M16 | UC212-38 | F212 | 4.26 |
UCF212-39 | 60 | 175 | 143 | 29 | 20 | 48 | 19 | 68.7 | 65.1 | 25.4 | M16 | UC212-39 | F212 | 4.19 |
UCF213 | 65 | 187 | 149 | 30 | 22 | 50 | 19 | 69.7 | 65.1 | 25.4 | M16 | UC213 | F213 | 4.99 |
UCF213-40 | 66 | 187 | 149 | 30 | 22 | 50 | 19 | 69.7 | 65.1 | 25.4 | M16 | UC213-40 | F213 | 5.08 |
UCF213-41 | 67 | 187 | 149 | 30 | 22 | 50 | 19 | 69.7 | 65.1 | 25.4 | M16 | UC213-41 | F213 | 4.99 |
UCF214 | 70 | 193 | 152 | 31 | 22 | 54 | 19 | 75.4 | 74.6 | 30.2 | M16 | UC214 | F214 | 5.85 |
UCF214-42 | 70 | 193 | 152 | 31 | 22 | 54 | 19 | 75.4 | 74.6 | 30.2 | M16 | UC214-42 | F214 | 6.06 |
UCF214-43 | 70 | 193 | 152 | 31 | 22 | 54 | 19 | 75.4 | 74.6 | 30.2 | M16 | UC214-43 | F214 | 5.96 |
UCF214-44 | 70 | 193 | 152 | 31 | 22 | 54 | 19 | 75.4 | 74.6 | 30.2 | M16 | UC214-44 | F214 | 5.86 |
UCF215 | 75 | 200 | 159 | 34 | 22 | 56 | 19 | 78.5 | 778 | 33.3 | M16 | UC215 | F215 | 6.91 |
UCF215-45 | 75 | 200 | 159 | 34 | 22 | 56 | 19 | 78.5 | 778 | 33.3 | M16 | UC215-45 | F215 | 7.16 |
UCF215-46 | 75 | 200 | 159 | 34 | 22 | 56 | 19 | 78.5 | 778 | 33.3 | M16 | UC215-46 | F215 | 7.05 |
UCF215-47 | 75 | 200 | 159 | 34 | 22 | 56 | 19 | 78.5 | 778 | 33.3 | M16 | UC215-47 | F215 | 6.94 |
UCF215-48 | 75 | 200 | 159 | 34 | 22 | 56 | 19 | 78.5 | 778 | 33.3 | M16 | UC215-48 | F215 | 6.82 |
UCF216 | 80 | 208 | 165 | 34 | 22 | 58 | 23 | 83.3 | 82.6 | 33.3 | M20 | UC216 | F216 | 7.50 |
UCF216-49 | 80 | 208 | 165 | 34 | 22 | 58 | 23 | 83.3 | 82.6 | 33.3 | M20 | UC216-49 | F216 | 7.68 |
UCF216-50 | 80 | 208 | 165 | 34 | 22 | 58 | 23 | 83.3 | 82.6 | 33.3 | M20 | UC216-50 | F216 | 7.55 |
UCF216-51 | 80 | 208 | 165 | 34 | 22 | 58 | 23 | 83.3 | 82.6 | 33.3 | M20 | UC216-51 | F216 | 7.50 |
UCF217 | 85 | 220 | 175 | 36 | 24 | 63 | 23 | 876 | 85.7 | 34.1 | M20 | UC217 | F217 | 9.66 |
UCF217-52 | 85 | 220 | 175 | 36 | 24 | 63 | 23 | 876 | 85.7 | 34.1 | M20 | UC217-52 | F217 | 9.88 |
UCF217-53 | 85 | 220 | 175 | 36 | 24 | 63 | 23 | 876 | 85.7 | 34.1 | M20 | UC217-53 | F217 | 9.74 |
UCF217-55 | 85 | 220 | 175 | 36 | 24 | 63 | 23 | 876 | 85.7 | 34.1 | M20 | UC217-55 | F217 | 9.45 |
UCF218 | 90 | 235 | 187 | 40 | 24 | 68 | 23 | 96.3 | 96 | 39.7 | M20 | UC218 | F218 | 12.06 |
UCF218-56 | 90 | 235 | 187 | 40 | 24 | 68 | 23 | 96.3 | 96 | 39.7 | M20 | UC218-56 | F218 | 12.17 |
UCF305 | 90 | 235 | 187 | 40 | 24 | 68 | 23 | 96.3 | 96 | 39.7 | M20 | UC305 | F305 | 1.10 |
UCF305-14 | 25 | 110 | 80 | 16 | 13 | 29 | 16 | 39 | 38 | 15 | M14 | UC305-14 | F305 | 1.10 |
UCF305-15 | 26 | 110 | 80 | 16 | 13 | 29 | 16 | 39 | 38 | 15 | M14 | UC305-15 | F305 | 1.10 |
UCF305-16 | 27 | 110 | 80 | 16 | 13 | 29 | 16 | 39 | 38 | 15 | M14 | UC305-16 | F305 | 1.10 |
UCF306 | 30 | 125 | 95 | 18 | 15 | 32 | 16 | 44 | 43 | 17 | M14 | UC306 | F306 | 1.60 |
UCF306-18 | 30 | 125 | 95 | 18 | 15 | 32 | 16 | 44 | 43 | 17 | M14 | UC306-18 | F306 | 1.60 |
UCF306-19 | 30 | 125 | 95 | 18 | 15 | 32 | 16 | 44 | 43 | 17 | M14 | UC306-19 | F306 | 1.60 |
UCF307 | 35 | 135 | 100 | 20 | 16 | 36 | 19 | 49 | 48 | 19 | M16 | UC307 | F307 | 2.00 |
UCF307-20 | 35 | 135 | 100 | 20 | 16 | 36 | 19 | 49 | 48 | 19 | M16 | UC307-20 | F307 | 2.00 |
UCF307-21 | 35 | 135 | 100 | 20 | 16 | 36 | 19 | 49 | 48 | 19 | M16 | UC307-21 | F307 | 2.00 |
UCF307-22 | 35 | 135 | 100 | 20 | 16 | 36 | 19 | 49 | 48 | 19 | M16 | UC307-22 | F307 | 2.00 |
UCF308 | 40 | 150 | 112 | 23 | 17 | 40 | 19 | 56 | 52 | 19 | M16 | UC308 | F308 | 2.70 |
UCF308-24 | 40 | 150 | 112 | 23 | 17 | 40 | 19 | 56 | 52 | 19 | M16 | UC308-24 | F308 | 2.70 |
UCF308-25 | 40 | 150 | 112 | 23 | 17 | 40 | 19 | 56 | 52 | 19 | M16 | UC308-25 | F308 | 2.70 |
UCF309 | 45 | 160 | 125 | 25 | 18 | 44 | 19 | 60 | 57 | 22 | M16 | UC309 | F309 | 3.40 |
UCF309-26 | 45 | 160 | 125 | 25 | 18 | 44 | 19 | 60 | 57 | 22 | M16 | UC309-26 | F309 | 3.40 |
UCF309-27 | 45 | 160 | 125 | 25 | 18 | 44 | 19 | 60 | 57 | 22 | M16 | UC309-27 | F309 | 3.40 |
UCF309-28 | 45 | 160 | 125 | 25 | 18 | 44 | 19 | 60 | 57 | 22 | M16 | UC309-28 | F309 | 3.40 |
UCF310 | 50 | 175 | 132 | 28 | 19 | 48 | 23 | 67 | 61 | 22 | M20 | UC310 | F310 | 4.50 |
UCF310-30 | 50 | 175 | 132 | 28 | 19 | 48 | 23 | 67 | 61 | 22 | M20 | UC310-30 | F310 | 4.50 |
UCF310-31 | 50 | 175 | 132 | 28 | 19 | 48 | 23 | 67 | 61 | 22 | M20 | UC310-31 | F310 | 4.50 |
UCF311 | 55 | 185 | 140 | 30 | 20 | 52 | 23 | 71 | 66 | 25 | M20 | UC311 | F311 | 5.50 |
UCF311-32 | 55 | 185 | 140 | 30 | 20 | 52 | 23 | 71 | 66 | 25 | M20 | UC311-32 | F311 | 5.50 |
UCF311-34 | 55 | 185 | 140 | 30 | 20 | 52 | 23 | 71 | 66 | 25 | M20 | UC311-34 | F311 | 5.50 |
UCF311-35 | 55 | 185 | 140 | 30 | 20 | 52 | 23 | 71 | 66 | 25 | M20 | UC311-35 | F311 | 5.50 |
UCF312 | 55 | 185 | 140 | 30 | 20 | 52 | 23 | 71 | 66 | 25 | M20 | UC312 | F312 | 6.50 |
UCF312-36 | 55 | 185 | 140 | 30 | 20 | 52 | 23 | 71 | 66 | 25 | M20 | UC312-36 | F312 | 6.50 |
UCF312-38 | 55 | 185 | 140 | 30 | 20 | 52 | 23 | 71 | 66 | 25 | M20 | UC312-38 | F312 | 6.50 |
UCF312-39 | 55 | 185 | 140 | 30 | 20 | 52 | 23 | 71 | 66 | 25 | M20 | UC312-39 | F312 | 6.50 |
UCF313 | 65 | 208 | 166 | 33 | 22 | 58 | 23 | 78 | 75 | 30 | M20 | UC313 | F313 | 7.90 |
UCF313-40 | 65 | 208 | 166 | 33 | 22 | 58 | 23 | 78 | 75 | 30 | M20 | UC313-40 | F313 | 7.90 |
UCF314 | 70 | 226 | 178 | 36 | 25 | 61 | 25 | 81 | 78 | 31 | M22 | UC314 | F314 | 9.50 |
UCF314-44 | 70 | 226 | 178 | 36 | 25 | 61 | 25 | 81 | 78 | 31 | M22 | UC314-44 | F314 | 9.50 |
UCF315 | 75 | 236 | 184 | 39 | 25 | 66 | 25 | 89 | 82 | 32 | M22 | UC315 | F315 | 12.00 |
UCF315-48 | 75 | 236 | 184 | 39 | 25 | 66 | 25 | 89 | 82 | 32 | M22 | UC315-48 | F315 | 12.00 |
UCF316 | 80 | 250 | 196 | 38 | 27 | 68 | 31 | 90 | 86 | 34 | M27 | UC316 | F316 | 14.00 |
UCF317 | 85 | 260 | 204 | 44 | 27 | 74 | 31 | 100 | 96 | 40 | M27 | UC317 | F317 | 16.00 |
UCF317-48 | 85 | 260 | 204 | 44 | 27 | 74 | 31 | 100 | 96 | 40 | M27 | UC317-48 | F317 | 16.00 |
UCF318 | 90 | 280 | 216 | 44 | 30 | 76 | 35 | 100 | 96 | 40 | M30 | UC318 | F318 | 19.00 |
UCF318-56 | 91 | 280 | 216 | 44 | 30 | 76 | 35 | 100 | 96 | 40 | M30 | UC318-56 | F318 | 19.00 |
UCF319 | 95 | 290 | 228 | 59 | 30 | 94 | 35 | 121 | 103 | 41 | M30 | UC319 | F319 | 22.00 |
UCF319-60 | 95 | 290 | 228 | 59 | 30 | 94 | 35 | 121 | 103 | 41 | M30 | UC319-60 | F319 | 22.00 |
UCF320 | 100 | 310 | 242 | 59 | 32 | 94 | 38 | 125 | 108 | 42 | M33 | UC320 | F320 | 26.00 |
UCF320-64 | 100 | 310 | 242 | 59 | 32 | 94 | 38 | 125 | 108 | 42 | M33 | UC320-64 | F320 | 26.00 |
UCF321 | 105 | 310 | 242 | 59 | 32 | 94 | 38 | 127 | 112 | 44 | M33 | UC321 | F321 | 28.00 |
UCF322 | 110 | 340 | 266 | 60 | 35 | 96 | 41 | 131 | 117 | 46 | M36 | UC322 | F322 | 32.00 |
UCF324 | 120 | 370 | 290 | 65 | 40 | 110 | 41 | 140 | 126 | 51 | M36 | UC324 | F324 | 44.00 |
UCF326 | 130 | 410 | 320 | 65 | 45 | 115 | 41 | 146 | 135 | 54 | M36 | UC326 | F326 | 58.00 |
UCF328 | 140 | 450 | 350 | 75 | 55 | 125 | 41 | 161 | 145 | 59 | M36 | UC328 | F328 | 75.00 |