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#CODE
- Discontinued Products
Flange Mount Bearing Units - Four-Bolt Square Flange, Cast Iron, with Spigot Joint, UCFS Series
- Volume Discount
Bearing unit that combines a bearing with a bearing box with a square flange and a spigot joint on the mounting surface
Part Number
Configured Part Number is shown.
 |  | ||||||||||||||||||||||||||
| Shaft Dia. | Dimensions inch mm | Bolt Size inch mm | Standard | Basic Load Ratings kN | Factor f 0 | With Cast Iron Cover | |||||||||||||||||||||
| mm | inch | Unit No. | Dimension mm inch Ac | Mass kg | |||||||||||||||||||||||
| d | L | H3 | J | N | A1 | A2 | A3 | A4 | A5 | B | S | Unit No. | Housing No. | Bearing No. | Mass kg | Cr | C0r | Open Type | Closed Type | ||||||||
| 25 | 1 | 4 11/32 110 | 3.1496 80 | 3 5/32 80 | 5/8 16 | 1/2 13 | 23/64 9 | 9/32 7 | 7/8 22 | 1 1/4 32 | 1.496 38 | 0.591 15 | 1/2 M14 | UCFS305 UCFS305-16 | FS305 | UC305 UC305-16 | 1.4 1.4 | 21.2 | 10.9 | 12.6 | UCFS305C � | UCFS305D � | 47 � | 1 27/32 � | 1.7 � | ||
| 30 | � | 4 29/32 125 | 3.5433 90 | 3 47/64 95 | 5/8 16 | 19/32 15 | 25/64 10 | 5/16 8 | 15/16 24 | 1 13/32 36 | 1.693 43 | 0.669 17 | 1/2 M14 | UCFS306 | FS306 | UC306 | 1.9 | 26.7 | 15 | 13.3 | UCFS306C | UCFS306D | 51 | 2 | 2.2 | ||
| 35 | � | 5 5/16 135 | 3.9370 100 | 3 15/16 100 | 3/4 19 | 5/8 16 | 7/16 11 | 23/64 9 | 1 1/16 27 | 1 9/16 40 | 1.890 48 | 0.748 19 | 5/8 M16 | UCFS307 | FS307 | UC307 | 2.3 | 33.4 | 19.3 | 13.2 | UCFS307C | UCFS307D | 55 | 2 5/32 | 2.7 | ||
| 40 | 1 1/2 | 5 29/32 150 | 4.5276 115 | 4 13/32 112 | 3/4 19 | 21/32 17 | 33/64 13 | 25/64 10 | 1 3/16 30 | 1 13/16 46 | 2.047 52 | 0.748 19 | 5/8 M16 | UCFS308-24 UCFS308 | FS308 | UC308-24 UC308 | 3.4 3.4 | 40.7 | 24 | 13.2 | � UCFS308C | � UCFS308D | � 61 | � 2 13/32 | � 3.9 | ||
| 45 | 1 3/4 | 6 5/16 160 | 4.9213 125 | 4 59/64 125 | 3/4 19 | 23/32 18 | 35/64 14 | 7/16 11 | 1 5/16 33 | 1 15/16 49 | 2.244 57 | 0.866 22 | 5/8 M16 | UCFS309-28 UCFS309 | FS309 | UC309-28 UC309 | 4.4 4.4 | 48.9 | 29.5 | 13.3 | � UCFS309C | � UCFS309D | � 65 | � 2 9/16 | � 5.0 | ||
| 50 | � | 6 7/8 175 | 5.5118 140 | 5 13/64 132 | 29/32 23 | 3/4 19 | 5/8 16 | 15/32 12 | 1 13/32 36 | 2 5/32 55 | 2.402 61 | 0.866 22 | 3/4 M20 | UCFS310 | FS310 | UC310 | 5.3 | 62 | 38.3 | 13.2 | UCFS310C | UCFS310D | 71 | 2 25/32 | 6.1 | ||
| 55 | 2 2 3/16 | 7 9/32 185 | 5.9055 150 | 5 33/64 140 | 29/32 23 | 25/32 20 | 43/64 17 | 33/64 13 | 1 17/32 39 | 2 9/32 58 | 2.598 66 | 0.984 25 | 3/4 M20 | UCFS311-32 UCFS311 UCFS311-35 | FS311 | UC311-32 UC311 UC311-35 | 6.1 6.1 6.1 | 71.6 | 45 | 13.2 | � UCFS311C � | � UCFS311D � | � 74 � | � 2 29/32 � | � 7.0 � | ||
| 60 | 2 7/16 | 7 11/16 195 | 6.2992 160 | 5 29/32 150 | 29/32 23 | 7/8 22 | 3/4 19 | 35/64 14 | 1 21/32 42 | 2 17/32 64 | 2.795 71 | 1.024 26 | 3/4 M20 | UCFS312 UCFS312-39 | FS312 | UC312 UC312-39 | 7.4 7.4 | 81.9 | 52.2 | 13.2 | UCFS312C � | UCFS312D � | 81 � | 3 3/16 � | 8.6 � | ||
| 65 | 2 1/2 | 8 3/16 208 | 6.8898 175 | 6 17/32 166 | 29/32 23 | 7/8 22 | 19/32 15 | 45/64 18 | 1 9/16 40 | 2 3/8 60 | 2.953 75 | 1.181 30 | 3/4 M20 | UCFS313-40 UCFS313 | FS313 | UC313-40 UC313 | 8.8 8.8 | 92.7 | 59.9 | 13.2 | � UCFS313C | � UCFS313D | � 76 | � 3 | � 9.9 | ||
| 70 | 2 3/4 | 8 29/32 226 | 7.2835 185 | 7 1/64 178 | 63/64 25 | 31/32 25 | 45/64 18 | 45/64 18 | 1 11/16 43 | 2 15/32 63 | 3.071 78 | 1.299 33 | 7/8 M22 | UCFS314-44 UCFS314 | FS314 | UC314-44 UC314 | 11.2 11.2 | 104 | 68.2 | 13.2 | � UCFS314C | � UCFS314D | � 80 | � 3 5/32 | � 12.3 | ||
| 75 | 2 15/16 3 | 9 9/32 236 | 7.8740 200 | 7 1/4 184 | 63/64 25 | 31/32 25 | 53/64 21 | 45/64 18 | 1 7/8 48 | 2 25/32 71 | 3.228 82 | 1.260 32 | 7/8 M22 | UCFS315-47 UCFS315 UCFS315-48 | FS315 | UC315-47 UC315 UC315-48 | 13.7 13.7 13.7 | 113 | 77.2 | 13.2 | � UCFS315C � | � UCFS315D � | � 88 � | � 3 15/32 � | � 15.0 � | ||
| 80 | � | 9 27/32 250 | 8.2677 210 | 7 23/32 196 | 1 7/32 31 | 1 1/16 27 | 45/64 18 | 25/32 20 | 1 7/8 48 | 2 3/4 70 | 3.386 86 | 1.339 34 | 1 M27 | UCFS316 | FS316 | UC316 | 15.1 | 123 | 86.7 | 13.3 | UCFS316C | UCFS316D | 87 | 3 7/16 | 16.5 | ||
| 85 | � | 10 1/4 260 | 8.6614 220 | 8 1/32 204 | 1 7/32 31 | 1 1/16 27 | 15/16 24 | 25/32 20 | 2 1/8 54 | 3 5/32 80 | 3.780 96 | 1.575 40 | 1 M27 | UCFS317 | FS317 | UC317 | 17.3 | 133 | 96.8 | 13.3 | UCFS317C | UCFS317D | 97 | 3 13/16 | 18.9 | ||
| 90 | 3 1/2 | 11 1/32 280 | 9.4488 240 | 8 1/2 216 | 1 3/8 35 | 1 3/16 30 | 15/16 24 | 25/32 20 | 2 7/32 56 | 3 5/32 80 | 3.780 96 | 1.575 40 | 1 1/8 M30 | UCFS318-56 UCFS318 | FS318 | UC318-56 UC318 | 21.3 21.3 | 143 | 107 | 13.3 | � UCFS318C | � UCFS318D | � 99 | � 3 29/32 | � 23.2 | ||
| 95 | � | 11 13/32 290 | 9.8425 250 | 8 31/32 228 | 1 3/8 35 | 1 3/16 30 | 1 17/32 39 | 25/32 20 | 2 29/32 74 | 3 31/32 101 | 4.055 103 | 1.614 41 | 1 1/8 M30 | UCFS319 | FS319 | UC319 | 24.5 | 153 | 119 | 13.3 | UCFS319C | UCFS319D | 120 | 4 23/32 | 26.7 | ||
| 100 | 3 15/16 4 | 12 7/32 310 | 10.2362 260 | 9 17/32 242 | 1 1/2 38 | 1 1/4 32 | 1 17/32 39 | 25/32 20 | 2 29/32 74 | 4 1/8 105 | 4.252 108 | 1.654 42 | 1 1/4 M33 | UCFS320 UCFS320-63 UCFS320-64 | FS320 | UC320 UC320-63 UC320-64 | 29.5 29.5 29.5 | 173 | 141 | 13.2 | UCFS320C � � | UCFS320D � � | 126 � � | 4 31/32 � � | 32.3 � � | ||
| 105 | � | 12 7/32 310 | 10.2362 260 | 9 17/32 242 | 1 1/2 38 | 1 1/4 32 | 1 17/32 39 | 25/32 20 | 2 29/32 74 | 4 7/32 107 | 4.409 112 | 1.732 44 | 1 1/4 M33 | UCFS321 | FS321 | UC321 | 32.7 | 184 | 153 | 13.2 | UCFS321C | UCFS321D | 128 | 5 1/32 | 35.7 | ||
| 110 | � | 13 3/8 340 | 11.8110 300 | 10 15/32 266 | 1 39/64 41 | 1 3/8 35 | 1 3/8 35 | 63/64 25 | 2 25/32 71 | 4 3/16 106 | 4.606 117 | 1.811 46 | 1 3/8 M36 | UCFS322 | FS322 | UC322 | 39 | 205 | 180 | 13.2 | UCFS322C | UCFS322D | 129 | 5 3/32 | 42.4 | ||
| 120 | � | 14 9/16 370 | 12.9921 330 | 11 27/64 290 | 1 39/64 41 | 1 9/16 40 | 1 3/8 35 | 1 3/16 30 | 3 5/32 80 | 4 11/32 110 | 4.961 126 | 2.008 51 | 1 3/8 M36 | UCFS324 | FS324 | UC324 | 50.6 | 207 | 185 | 13.5 | UCFS324C | UCFS324D | 133 | 5 1/4 | 55.4 | ||
| 130 | � | 16 5/32 410 | 14.1732 360 | 12 19/32 320 | 1 39/64 41 | 1 25/32 45 | 1 3/8 35 | 1 3/16 30 | 3 11/32 85 | 4 9/16 116 | 5.315 135 | 2.126 54 | 1 3/8 M36 | UCFS326 | FS326 | UC326 | 67.7 | 229 | 214 | 13.6 | UCFS326C | UCFS326D | 142 | 5 29/32 | 73.8 | ||
| 140 | � | 17 23/32 450 | 15.7480 400 | 13 25/32 350 | 1 39/64 41 | 2 5/32 55 | 1 49/64 45 | 1 3/16 30 | 3 3/4 95 | 5 5/32 131 | 5.709 145 | 2.323 59 | 1 3/8 M36 | UCFS328 | FS328 | UC328 | 94 | 253 | 246 | 13.6 | UCFS328C | UCFS328D | 156 | 6 5/32 | 102 | ||
| 1. In Part No. of unit and units with covers, fitting codes follow bore diameter numbers. (See Table 10.5 in P.62.) | |||||||||||||||||||||||||||
| 2. Part No. of applicable grease fittings are shown below. | |||||||||||||||||||||||||||
| A-1/4-28UNF ............. 305~308 | |||||||||||||||||||||||||||
| A-R1/8 ........................ 309~328 | |||||||||||||||||||||||||||
| 3. As for the triple seal type product, suffix code L3 follows the Part No. of unit or bearing. | |||||||||||||||||||||||||||
| (Example of Part No. : UCFS307JL3, UC307L3) | |||||||||||||||||||||||||||
| 4. The dimensions and forms of applicable bearings, see the dimensional tables of ball bearing for unit. | |||||||||||||||||||||||||||
| 5. Housings of nodular graphite cast iron are also available. | |||||||||||||||||||||||||||
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Basic Information
| Unit, Type | Insert Bearing Unit | Bearing Inner Dia. Shape | Cylindrical Bore Set Screw Type | Unit Body Material | Cast Iron |
|---|---|---|---|---|---|
| Rolling Element Material | Bearing Steel | Surface Treatment | No | Diameter series symbol | For Heavy Load |
| Fit | J7 | Stroke | No |
Specification/Dimensions
-
Bearing Unit, Type
- Square flange shape
- Others
-
Shaft Bore Dia. d(φ)
-
Accessory
- No Cover
- With steel plate cover/One-end sealed type
- With steel plate cover/Through type
-
Grease Type
-
Seal
- Nitrile
- Silicone
- Triple seals
-
Machining
- Cast iron cover mounting groove
- No
-
type
- UCFS
-
CAD
- 2D
- 3D
Days to Ship
-
- All
- 10 Days or Less
- 12 Days or Less
- 13 Days or Less
- 14 Days or Less
- 17 Days or Less
- 37 Days or Less
- 39 Days or Less
Specify Alterations
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
Additional Products in this Category
- Flange Mount Bearing Units - Two-Bolt Diamond Flange, Cast Iron
- Flange Mount Bearing Units - Two-Bolt Diamond Flange, Die Cast, UFL Series
- Flange Mount Bearing Units - Four-Bolt Round Flange, Cast Iron, with Spigot Joint, UCFC Series
- Flange Mount Bearing Units - Four-Bolt Square Flange, Cast Iron, Adapter Type, UKF Series
- Flange Mount Bearing Units - Three-Bolt Round Flange, Steel, SBPF Series
- Flange Mount Bearing Units - Four-Bolt Round Flange, with Spigot Joint, Cylindrical Bore with Set Screw, UCFC Series
- Flange Mount Bearing Units - Two-Bolt Diamond Flange, Cylindrical Bore with Set Screw, UCFL Series
- Flange Mount Bearing Units - Two-Bolt Diamond Flange, Silver Body, Cylindrical Hole with Set Screw, KFL Series
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