The nominal model number of FYH rolling bearing with house is in accordance with JIS B 1557, and it consists of the type symbol of the bearing with a block (consisting of the type symbol of the bearing and the type symbol of the bearing housing), the diameter series symbol, the inner diameter model, the accessory symbol and the special symbol. The nominal model number of UCP207JL3 bearing is UC207L3 The nominal model number of bearing housing is P207J. UK P 209 J CD + H309X Bearing Nominal Model UK209 + H309X Bearing Housing Nominal Model P209JE1 Steel Plate Cover Nominal Model (Through Type) C-940 (Sealed Type) D-9. UC F 209 J L3 FD D1K2 G6 A1 Nominal model number of bearing UC209L3D1K2G6 Nominal model number of bearing housing F209JE3A1 Nominal model number of cast iron cover (closed type) 209FD UCu003dtype symbol of bearing Fu003dtype symbol of bearing box 2u003ddiameter series symbol 09u003d Inner model J u003d Fitting symbol L3 FD u003d Accessory symbol D1K2 G6 u003d Bearing special symbol A1 u003d Bearing housing special symbol Remarks) The above is an example of the configuration of the nominal model, but the configuration of the nominal model may be different for different components. Bearing form symbol: UCu003d cylindrical hole, with set screw UKu003d tapered hole (with fastener) NAu003d cylindrical hole, with eccentric retaining ring SBu003d cylindrical hole, with set screw (light type) SUu003d cylindrical Hole, with stop screw (purification series) ERu003dcylindrical hole, with stop screw, cylindrical outer diameter surface, oil supply structure with retaining ring RBu003dcylindrical hole, with stop screw, cylindrical outer diameter surface. Bearing housing form symbol: Cu003dring seat (JIS standard product) Fu003dsquare seat (JIS standard product) FAu003ddeformed diamond seat FBu003ddeformed seat FCu003dcircular seat with boss (JIS standard product) FLu003ddiamond seat (JIS standard product) FSu003dwith boss (JIS standard product) HAu003dbracket seat IPu003dthick wall vertical seat LFu003dlight diamond seat LPu003dlight weight vertical seat NPTH slider seat P with steel frame u003d vertical seat (JIS standard product) PA u003d narrow vertical seat PF u003d steel plate round seat (JIS standard product) PFL u003d steel plate diamond seat (JIS standard product) PH u003d center height vertical seat PP u003d steel plate Vertical seat (JIS compliant product) PTHu003dSlider seat with steel plate frame SFu003dStainless steel thin-walled square seat SFLu003dStainless steel thin-walled diamond seat Tu003dSlider seat (JIS compliant product) THu003dStrip steel Frame slider seat TL u003d slider seat with light channel steel frame TU u003d slider seat with channel steel frame. Diameter series notation: 2u003dfor light load Xu003dfor medium load 3u003dheavy load. Inner diameter model: Inner diameter model content 00u003dnominal inner diameter of bearing 10 mm 01u003dnominal inner diameter of bearing 12 mm 02u003dnominal inner diameter of bearing 15 mm 03 nominal inner diameter of bearing 17 mm 04 or more (inner diameter model) 5u003dnominal inner diameter of bearing (mm) 01-8 - (inner diameter model)/16 u003d bearing nominal inner diameter (inch) (8/16 u003d 1/2 inch u003d 12.7mm). Please refer to Appendix 2 at the end of the volume for bearings in the inch series of bore diameters. Fitting symbol Fitting symbol content J The tolerance zone for the diameter of the FYH ball bearing housing of the bearing housing is J7 (not indicated if the diameter of the spherical bearing housing exceeds 120mm). Bearing special symbol Item Bearing special symbol content No indication for grease (standard) Alvania No2, GOLD No.3 or equivalent D1 SH44MD2 SH33MD9 DEMNUM L-200 (fluorine grease) set screw No indication (standard) Double point G4 point G6 Top with pin G7 With anti-loosening nylon oil seal No indication (standard) Nitrile rubber K2 Silicone rubber K3 Non-contact sealing device No indication (standard) With oil seal, with slinger (UC, UK, NA, ER, RB) type bearing), with oil seal (SB, SU type bearing) P3 without oil seal, oil flinger P4 without oil seal other S5 for blower (oil seal: K3, special management of internal clearance and bearing accuracy) S6 FYH stainless steel bearing Table 10.6 Accessories Symbol Contents of symbols C 1) Dust cap, through type D 1) Dust cap, sealed type FC cast iron cap, through type FD cast iron cap, sealed type L3 triple seal product. Table 10.8 Bearing housing special symbols Items Bearing housing special symbols Contents of grease nozzle thread diameter No indication (standard) Same as those listed in the dimension table A1 PT1/8 Pipe thread A2 PF1/8 Pipe thread A3 PT1/4 Pipe thread A4 PF1/ 4 No indication of the position of the threaded hole of the grease nozzle for the pipe thread (standard) Same as the one listed in the dimension table No indication of oil-feeding material (standard) Grey cast iron (FC200) or cold-rolled steel sheet and strip (SPCC). Purification Series Zinc Alloy Die Casting H1 Stainless Steel Casting (SCS13) H5 Rolled Steel for General Structure (SS400) SC Carbon Steel Casting (SC450) Grease Nozzle No Display (Standard) Type A N1 Type B (67.5) N2 C type (90) bearing nominal bore diameter 15 mm. Bearings have a nominal bore diameter of 10 mm.