Take-Up Units
UCT3 Series Take-Up Units (Heavy Series)
Take-up housing with slotted mounting that lets you adjust belt or chain tension, with a set screw insert bearing in a cast iron housing. Shaft sizes 25mm – 140mm; each size is listed with its dimensions below.
Dimensions & Part Numbers
| Shaft Dia. (mm) | Unit Number | N1 (mm) | L2 (mm) | H2 (mm) | N2 (mm) | N (mm) | L3 (mm) | A1 (mm) | H1 (mm) | H (mm) | L (mm) | A2 (mm) | A (mm) | r (mm) | L1 (mm) | B (Inner Ring Width) (mm) | S (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 25 | UCT305 | 16 | 14 | 62 | 36 | 26 | 65 | 12 | 80 | 89 | 122 | 26 | 36 | 46 | 76 | 38 | 15 |
| 30 | UCT306 | 18 | 16 | 70 | 41 | 28 | 74 | 16 | 90 | 100 | 137 | 28 | 41 | 52 | 85 | 43 | 17 |
| 35 | UCT307 | 20 | 17 | 75 | 45 | 30 | 80 | 16 | 100 | 111 | 150 | 32 | 45 | 56 | 94 | 48 | 19 |
| 40 | UCT308 | 22 | 19 | 83 | 50 | 32 | 89 | 18 | 112 | 124 | 162 | 34 | 50 | 62 | 100 | 52 | 19 |
| 45 | UCT309 | 24 | 20 | 90 | 55 | 34 | 97 | 18 | 125 | 138 | 178 | 38 | 55 | 68 | 110 | 57 | 22 |
| 50 | UCT310 | 27 | 22 | 98 | 61 | 37 | 106 | 20 | 140 | 151 | 192 | 40 | 61 | 74 | 118 | 61 | 22 |
| 55 | UCT311 | 29 | 23 | 105 | 66 | 39 | 115 | 22 | 150 | 163 | 207 | 44 | 66 | 80 | 127 | 66 | 25 |
| 60 | UCT312 | 31 | 25 | 113 | 71 | 41 | 123 | 22 | 160 | 178 | 220 | 46 | 71 | 85 | 135 | 71 | 26 |
| 65 | UCT313 | 32 | 27 | 116 | 70 | 43 | 134 | 26 | 170 | 190 | 238 | 50 | 80 | 92 | 146 | 75 | 30 |
| 70 | UCT314 | 36 | 27 | 130 | 85 | 46 | 140 | 26 | 180 | 202 | 252 | 52 | 90 | 97 | 155 | 78 | 33 |
| 75 | UCT315 | 36 | 27 | 132 | 85 | 46 | 150 | 26 | 192 | 216 | 262 | 55 | 90 | 102 | 160 | 82 | 32 |
| 80 | UCT316 | 42 | 30 | 150 | 98 | 53 | 160 | 30 | 204 | 230 | 282 | 60 | 102 | 108 | 174 | 86 | 34 |
| 85 | UCT317 | 42 | 32 | 152 | 98 | 53 | 170 | 32 | 214 | 240 | 298 | 64 | 102 | 115 | 183 | 96 | 40 |
| 90 | UCT318 | 46 | 32 | 160 | 106 | 57 | 175 | 32 | 228 | 255 | 312 | 66 | 110 | 120 | 192 | 96 | 40 |
| 95 | UCT319 | 46 | 33 | 165 | 106 | 57 | 180 | 35 | 240 | 270 | 322 | 72 | 110 | 125 | 197 | 103 | 41 |
| 100 | UCT320 | 48 | 34 | 175 | 115 | 59 | 200 | 35 | 260 | 290 | 345 | 75 | 120 | 135 | 210 | 108 | 42 |
| 105 | UCT321 | 48 | 34 | 175 | 115 | 59 | 200 | 35 | 260 | 290 | 347 | 75 | 120 | 135 | 212 | 112 | 44 |
| 110 | UCT322 | 52 | 40 | 185 | 125 | 65 | 215 | 38 | 285 | 320 | 385 | 80 | 130 | 150 | 235 | 117 | 46 |
| 120 | UCT324 | 60 | 44 | 210 | 140 | 70 | 230 | 45 | 320 | 355 | 432 | 90 | 140 | 165 | 267 | 126 | 51 |
| 130 | UCT326 | 65 | 47 | 220 | 150 | 75 | 240 | 50 | 350 | 385 | 465 | 100 | 150 | 180 | 285 | 135 | 54 |
| 140 | UCT328 | 70 | 52 | 230 | 160 | 80 | 255 | 50 | 380 | 415 | 515 | 100 | 155 | 200 | 315 | 145 | 59 |
Dimensions and part numbers per manufacturer technical catalogue; confirm the exact unit and brand with us before ordering.
Inch Shaft Sizes
The same UCT3 housings are also supplied with inch-bore insert bearings. The unit number carries a suffix for the shaft size (for example -104 is 1-1/4 inch), and the housing dimensions are the same as the metric unit in the table above.
| Shaft Dia. (in) | Unit Number | N1 (mm) | L2 (mm) | H2 (mm) | N2 (mm) | N (mm) | L3 (mm) | A1 (mm) | H1 (mm) | H (mm) | L (mm) | A2 (mm) | A (mm) | r (mm) | L1 (mm) | B (Inner Ring Width) (mm) | S (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 13/16 in (20.6 mm) | UCT305-013 | 16 | 14 | 62 | 36 | 26 | 65 | 12 | 80 | 89 | 122 | 26 | 36 | 46 | 76 | 38 | 15 |
| 7/8 in (22.2 mm) | UCT305-014 | 16 | 14 | 62 | 36 | 26 | 65 | 12 | 80 | 89 | 122 | 26 | 36 | 46 | 76 | 38 | 15 |
| 15/16 in (23.8 mm) | UCT305-015 | 16 | 14 | 62 | 36 | 26 | 65 | 12 | 80 | 89 | 122 | 26 | 36 | 46 | 76 | 38 | 15 |
| 1 in (25.4 mm) | UCT305-100 | 16 | 14 | 62 | 36 | 26 | 65 | 12 | 80 | 89 | 122 | 26 | 36 | 46 | 76 | 38 | 15 |
| 1-1/16 in (27 mm) | UCT306-101 | 18 | 16 | 70 | 41 | 28 | 74 | 16 | 90 | 100 | 137 | 28 | 41 | 52 | 85 | 43 | 17 |
| 1-1/8 in (28.6 mm) | UCT306-102 | 18 | 16 | 70 | 41 | 28 | 74 | 16 | 90 | 100 | 137 | 28 | 41 | 52 | 85 | 43 | 17 |
| 1-3/16 in (30.2 mm) | UCT306-103 | 18 | 16 | 70 | 41 | 28 | 74 | 16 | 90 | 100 | 137 | 28 | 41 | 52 | 85 | 43 | 17 |
| 1-1/4 in (31.8 mm) | UCT307-104 | 20 | 17 | 75 | 45 | 30 | 80 | 16 | 100 | 111 | 150 | 32 | 45 | 56 | 94 | 48 | 19 |
| 1-5/16 in (33.3 mm) | UCT307-105 | 20 | 17 | 75 | 45 | 30 | 80 | 16 | 100 | 111 | 150 | 32 | 45 | 56 | 94 | 48 | 19 |
| 1-3/8 in (34.9 mm) | UCT307-106 | 20 | 17 | 75 | 45 | 30 | 80 | 16 | 100 | 111 | 150 | 32 | 45 | 56 | 94 | 48 | 19 |
| 1-7/16 in (36.5 mm) | UCT307-107 | 20 | 17 | 75 | 45 | 30 | 80 | 16 | 100 | 111 | 150 | 32 | 45 | 56 | 94 | 48 | 19 |
| 1-1/2 in (38.1 mm) | UCT308-108 | 22 | 19 | 83 | 50 | 32 | 89 | 18 | 112 | 124 | 162 | 34 | 50 | 62 | 100 | 52 | 19 |
| 1-9/16 in (39.7 mm) | UCT308-109 | 22 | 19 | 83 | 50 | 32 | 89 | 18 | 112 | 124 | 162 | 34 | 50 | 62 | 100 | 52 | 19 |
| 1-5/8 in (41.3 mm) | UCT309-110 | 24 | 20 | 90 | 55 | 34 | 97 | 18 | 125 | 138 | 178 | 38 | 55 | 68 | 110 | 57 | 22 |
| 1-11/16 in (42.9 mm) | UCT309-111 | 24 | 20 | 90 | 55 | 34 | 97 | 18 | 125 | 138 | 178 | 38 | 55 | 68 | 110 | 57 | 22 |
| 1-3/4 in (44.5 mm) | UCT309-112 | 24 | 20 | 90 | 55 | 34 | 97 | 18 | 125 | 138 | 178 | 38 | 55 | 68 | 110 | 57 | 22 |
| 1-13/16 in (46 mm) | UCT310-113 | 27 | 22 | 98 | 61 | 37 | 106 | 20 | 140 | 151 | 192 | 40 | 61 | 74 | 118 | 61 | 22 |
| 1-7/8 in (47.6 mm) | UCT310-114 | 27 | 22 | 98 | 61 | 37 | 106 | 20 | 140 | 151 | 192 | 40 | 61 | 74 | 118 | 61 | 22 |
| 1-15/16 in (49.2 mm) | UCT310-115 | 27 | 22 | 98 | 61 | 37 | 106 | 20 | 140 | 151 | 192 | 40 | 61 | 74 | 118 | 61 | 22 |
| 2 in (50.8 mm) | UCT311-200 | 29 | 23 | 105 | 66 | 39 | 115 | 22 | 150 | 163 | 207 | 44 | 66 | 80 | 127 | 66 | 25 |
| 2-1/16 in (52.4 mm) | UCT311-201 | 29 | 23 | 105 | 66 | 39 | 115 | 22 | 150 | 163 | 207 | 44 | 66 | 80 | 127 | 66 | 25 |
| 2-1/8 in (54 mm) | UCT311-202 | 29 | 23 | 105 | 66 | 39 | 115 | 22 | 150 | 163 | 207 | 44 | 66 | 80 | 127 | 66 | 25 |
| 2-3/16 in (55.6 mm) | UCT311-203 | 29 | 23 | 105 | 66 | 39 | 115 | 22 | 150 | 163 | 207 | 44 | 66 | 80 | 127 | 66 | 25 |
| 2-1/4 in (57.2 mm) | UCT312-204 | 31 | 25 | 113 | 71 | 41 | 123 | 22 | 160 | 178 | 220 | 46 | 71 | 85 | 135 | 71 | 26 |
| 2-5/16 in (58.7 mm) | UCT312-205 | 31 | 25 | 113 | 71 | 41 | 123 | 22 | 160 | 178 | 220 | 46 | 71 | 85 | 135 | 71 | 26 |
| 2-3/8 in (60.3 mm) | UCT312-206 | 31 | 25 | 113 | 71 | 41 | 123 | 22 | 160 | 178 | 220 | 46 | 71 | 85 | 135 | 71 | 26 |
| 2-7/16 in (61.9 mm) | UCT312-207 | 31 | 25 | 113 | 71 | 41 | 123 | 22 | 160 | 178 | 220 | 46 | 71 | 85 | 135 | 71 | 26 |
| 2-1/2 in (63.5 mm) | UCT313-208 | 32 | 27 | 116 | 70 | 43 | 134 | 26 | 170 | 190 | 238 | 50 | 80 | 92 | 146 | 75 | 30 |
| 2-9/16 in (65.1 mm) | UCT313-209 | 32 | 27 | 116 | 70 | 43 | 134 | 26 | 170 | 190 | 238 | 50 | 80 | 92 | 146 | 75 | 30 |
| 2-5/8 in (66.7 mm) | UCT314-210 | 36 | 27 | 130 | 85 | 46 | 140 | 26 | 180 | 202 | 252 | 52 | 90 | 97 | 155 | 78 | 33 |
| 2-11/16 in (68.3 mm) | UCT314-211 | 36 | 27 | 130 | 85 | 46 | 140 | 26 | 180 | 202 | 252 | 52 | 90 | 97 | 155 | 78 | 33 |
| 2-3/4 in (69.9 mm) | UCT314-212 | 36 | 27 | 130 | 85 | 46 | 140 | 26 | 180 | 202 | 252 | 52 | 90 | 97 | 155 | 78 | 33 |
| 2-13/16 in (71.4 mm) | UCT315-213 | 36 | 27 | 132 | 85 | 46 | 150 | 26 | 192 | 216 | 262 | 55 | 90 | 102 | 160 | 82 | 32 |
| 2-7/8 in (73 mm) | UCT315-214 | 36 | 27 | 132 | 85 | 46 | 150 | 26 | 192 | 216 | 262 | 55 | 90 | 102 | 160 | 82 | 32 |
| 2-15/16 in (74.6 mm) | UCT315-215 | 36 | 27 | 132 | 85 | 46 | 150 | 26 | 192 | 216 | 262 | 55 | 90 | 102 | 160 | 82 | 32 |
| 3 in (76.2 mm) | UCT315-300 | 36 | 27 | 132 | 85 | 46 | 150 | 26 | 192 | 216 | 262 | 55 | 90 | 102 | 160 | 82 | 32 |
| 3-1/16 in (77.8 mm) | UCT316-301 | 42 | 30 | 150 | 98 | 53 | 160 | 30 | 204 | 230 | 282 | 60 | 102 | 108 | 174 | 86 | 34 |
| 3-1/8 in (79.4 mm) | UCT316-302 | 42 | 30 | 150 | 98 | 53 | 160 | 30 | 204 | 230 | 282 | 60 | 102 | 108 | 174 | 86 | 34 |
| 3-3/16 in (81 mm) | UCT316-303 | 42 | 30 | 150 | 98 | 53 | 160 | 30 | 204 | 230 | 282 | 60 | 102 | 108 | 174 | 86 | 34 |
| 3-1/4 in (82.6 mm) | UCT317-304 | 42 | 32 | 152 | 98 | 53 | 170 | 32 | 214 | 240 | 298 | 64 | 102 | 115 | 183 | 96 | 40 |
| 3-5/16 in (84.1 mm) | UCT317-305 | 42 | 32 | 152 | 98 | 53 | 170 | 32 | 214 | 240 | 298 | 64 | 102 | 115 | 183 | 96 | 40 |
| 3-7/16 in (87.3 mm) | UCT317-307 | 42 | 32 | 152 | 98 | 53 | 170 | 32 | 214 | 240 | 298 | 64 | 102 | 115 | 183 | 96 | 40 |
| 3-7/16 in (87.3 mm) | UCT318-307 | 46 | 32 | 160 | 106 | 57 | 175 | 32 | 228 | 255 | 312 | 66 | 110 | 120 | 192 | 96 | 40 |
| 3-1/2 in (88.9 mm) | UCT318-308 | 46 | 32 | 160 | 106 | 57 | 175 | 32 | 228 | 255 | 312 | 66 | 110 | 120 | 192 | 96 | 40 |
| 3-5/8 in (92.1 mm) | UCT319-310 | 46 | 33 | 165 | 106 | 57 | 180 | 35 | 240 | 270 | 322 | 72 | 110 | 125 | 197 | 103 | 41 |
| 3-11/16 in (93.7 mm) | UCT319-311 | 46 | 33 | 165 | 106 | 57 | 180 | 35 | 240 | 270 | 322 | 72 | 110 | 125 | 197 | 103 | 41 |
| 3-3/4 in (95.3 mm) | UCT319-312 | 46 | 33 | 165 | 106 | 57 | 180 | 35 | 240 | 270 | 322 | 72 | 110 | 125 | 197 | 103 | 41 |
| 3-13/16 in (96.8 mm) | UCT320-313 | 48 | 34 | 175 | 115 | 59 | 200 | 35 | 260 | 290 | 345 | 75 | 120 | 135 | 210 | 108 | 42 |
| 3-7/8 in (98.4 mm) | UCT320-314 | 48 | 34 | 175 | 115 | 59 | 200 | 35 | 260 | 290 | 345 | 75 | 120 | 135 | 210 | 108 | 42 |
| 3-15/16 in (100 mm) | UCT320-315 | 48 | 34 | 175 | 115 | 59 | 200 | 35 | 260 | 290 | 345 | 75 | 120 | 135 | 210 | 108 | 42 |
| 4 in (101.6 mm) | UCT320-400 | 48 | 34 | 175 | 115 | 59 | 200 | 35 | 260 | 290 | 345 | 75 | 120 | 135 | 210 | 108 | 42 |
Typical Applications
- Belt and chain conveyor tensioning
- Adjustable shaft positions
- Material handling lines
- Agricultural machinery
Frequently Asked Questions
What sizes are available in the UCT3 series?
UCT3 units are available from 25mm – 140mm bore, as listed in the dimension table below. Each size has its own part number for ordering.
What is the housing material and locking type for UCT3?
UCT3 uses a cast iron housing with set screw locking, sourced from NTN, FAG, SKF, FYH, Asahi, DTC and SLS.
What is UCT3 typically used for?
Common applications include belt and chain conveyor tensioning and adjustable shaft positions, and similar general industrial shaft-support duties.
Can’t find your size?
We supply sizes, brands and special versions of mounted bearing units that are not listed on this page. Type the exact size or designation you need and send it to us for a quote.
Need pricing on UCT3 units?
Share your shaft size and quantity — our technical team will confirm availability and pricing within one business day.
