Triple-Sealed Bearings for Bearing Units

Transcription

1 For New Technology Network corporation R Triple-Sealed Bearings for Bearing

2 NTN Triple-Sealed Bearings for Bearing Units These reliable triple-sealed bearings are dustproof and waterproof. They ensure a longer bearing life even when exposed to heavy airborne dust and splashes of foul water. Features Better dustproofing and waterproofing ensure a longer bearing life. Triple-sealed bearings feature a secure bearing seal with three lips. This special seal offers reliable dustproofing and waterproofing superior to those of standard bearings used in bearing units. In addition, it ensures a longer service life, even when exposed to heavy airborne dust and splashes of foul water. (Patent pending) Reduces maintenance cost. A bearing life longer than that of a standard bearing unit configurations means extended maintenance intervals, greatly reduced maintenance costs (of inspection, relubrication, replacement, etc.), and increased availability of machinery. Decreases price of the bearing unit and contributes to more compact machinery. The triple-sealed bearing unit replaces conventional covered bearing units in certain operating conditions, greatly decreasing the cost of bearing units. In addition, if the cover is not required, the machinery can be made more compact. Secure balled setscrew The triple-sealed bearing is mounted on the shaft with NTN s unique balled setscrew, which features an embedded ball in its tip. Compared with knurled cup point or cup-point setscrews, the balled setscrew provides much greater resistance to loosening, as it does not readily loosen due to vibration or impact. Interchangeability The triple-sealed bearing unit conforms to the JIS (Japanese Industrial Standard) for UC-type bearings. It is not only ready to use as a relubricable bearing, but it also replaces the conventional bearing units of NTN and other manufacturers. It therefore serves as a ready replacement for existing bearing units. 1

3 Construction Types Low-torque triple-sealed bearing (Cylindrical-bore, set-screw type) UC21D1LLJ through UC218D1LLJ UC35D1LLJ through UC32D1LLJ High-torque triple-sealed bearing (Cylindrical-bore, set-screw type) UC21D1LLS through UC212D1LLS Outer ring Ball Sealing device The rubber seal extends to the outer circumference the shielded plate for better sealing performance, and prevents contamination of the bearing by dust or foul water. Sealed plate Galvanized steel plate construction ensures improved corrosion resistance. Optimal design contributes to enhanced pressure resistance. (Square-bore type for agricultual machines) 1AS8-11/8, 4AS9-11/4, etc. Inner ring Triple-lip Provides excellent dustproofing and waterproofing, thus protecting against contamination by dust or foul water. Triple-seal Allowable Operating Temperature Range and Speed The triple-sealed bearing can be used in a temperature range of -15 C to 1 C. Allowable speed Low-torque triple-sealed bearing unit dn value : 36 High-torque triple-sealed bearing unit dn value : 21 Typical Applications Triple-sealed bearing units are suitable for machinery used in locations subjected to splashes of foul water and heavy dust, including machinery used in steel-making, casting, garbage disposal, waterworks and sewage treatment, car washers, laundry washing, food processing, fish processing, construction, transportation, agriculture, textiles, and dyeing. Sample application : A pillow unit (right) and a square flange unit (left) are used in a conveyor unit operating in an environment with heavy airborne dust. Special Specifications The standard prelubrication for bearings in this series is Li-mineral grease. Contact NTN Engineering for optional bearings lubricated with Solid Grease (heat-solidified grease) or food-grade grease, or for bearings made of stainless steel. 2

4 Triple-sealed ball bearings for bearing unit Type UC2...LLJ Cylindrical bore with setscrew 2-12 G ds C F r r d4 d S D Triple-seal S1 B S Shaft Bearing Nominal dimensions basic load ratings mass mm d D B C rs 1 S S1 G ds d4 F inch. 12 UC21D1LLJ M !/2 UC21-8D1LLJ No.1-32UNF UC22D1LLJ M (/16 UC22-9D1LLJ No.1-32UNF %/8 UC22-1D1LLJ UC23D1LLJ M !!/16 UC23-11D1LLJ No.1-32UNF UC24D1LLJ M #/4 UC24-12D1LLJ No.1-32UNF UC25D1LLJ M !#/16 UC25-13D1LLJ &/8 UC25-14D1LLJ No.1-32UNF !%/16 UC25-15D1LLJ UC25-1D1LLJ UC26D1LLJ M !/16 UC26-11D1LLJ !/8 UC26-12D1LLJ !/4-28UNF #/16 UC26-13D1LLJ !/4 UC26-14D1LLJ UC27D1LLJ M !/4 UC27-14D1LLJ %/16 UC27-15D1LLJ !/4-28UNF #/8 UC27-16D1LLJ &/16 UC27-17D1LLJ UC28D1LLJ M !/2 UC28-18D1LLJ %/16-24UNF (/16 UC28-19D1LLJ UC29D1LLJ M %/8 UC29-11D1LLJ !!/16 UC29-111D1LLJ %/16-24UNF #/4 UC29-112D1LLJ UC21D1LLJ M !#/16 UC21-113D1LLJ &/8 UC21-114D1LLJ %/16-24UNF !%/16 UC21-115D1LLJ UC21-2D1LLJ Minimum allowable dimension for chamfer dimension r. Note: 1) For shaft tolerances, see the Bearing Units catalog. 2) The precision of ball bearings is as specified in JIS B 1558 Ball bearings for rolling bearing units. 3) Contact NTN Engineering for information on tapered bore ball bearings or ball bearings with bores in English measurements. 3

5 Shaft Bearing Nominal dimensions basic load ratings mass mm d D B C rs 1 S S1 G ds d4 F inch. 55 UC211D1LLJ M UC211-2D1LLJ !/16 UC211-21D1LLJ %/16-24UNF !/8 UC211-22D1LLJ #/16 UC211-23D1LLJ UC212D1LLJ M !/4 UC212-24D1LLJ %/16 UC212-25D1LLJ #/8-24UNF #/8 UC212-26D1LLJ &/16 UC212-27D1LLJ UC213D1LLJ M !/2 UC213-28D1LLJ #/8-24UNF (/16 UC213-29D1LLJ UC214D1LLJ M %/8 UC214-21D1LLJ !!/16 UC D1LLJ #/8-24UNF #/4 UC D1LLJ UC215D1LLJ M !#/16 UC D1LLJ &/8 UC D1LLJ #/8-24UNF !%/16 UC D1LLJ UC215-3D1LLJ UC216D1LLJ M !/16 UC216-31D1LLJ !/8 UC216-32D1LLJ #/8-24UNF #/16 UC216-33D1LLJ UC217D1LLJ M !/4 UC217-34D1LLJ %/16 UC217-35D1LLJ !/2-2UNF &/16 UC217-37D1LLJ UC218D1LLJ M !/2 UC218-38D1LLJ !/2-2UNF Minimum allowable dimension for chamfer dimension r. Note: 1) For shaft tolerances, see the Bearing Units catalog. 2) The precision of ball bearings is as specified in JIS B 1558 Ball bearings for rolling bearing units. 3) Contact NTN Engineering for information on tapered bore ball bearings or ball bearings with bores in English measurements. 4

6 Triple-sealed ball bearings for bearing unit Type UC3...LLJ Cylindrical bore with setscrew 2-12 G ds C F r r d4 d S D Triple-seal S1 B S Shaft Bearing Nominal dimensions Basic load ratings Mass mm d D B C rs 1 S S1 G ds d4 F inch. 25 UC35D1LLJ M !#/16 UC35-13D1LLJ &/8 UC35-14D1LLJ !/4-28UNF !%/16 UC35-15D1LLJ UC35-1D1LLJ UC36D1LLJ M !/16 UC36-11D1LLJ !/8 UC36-12D1LLJ !/4-28UNF #/16 UC36-13D1LLJ UC37D1LLJ M !/4 UC37-14D1LLJ %/16 UC37-15D1LLJ %/16-24UNF #/8 UC37-16D1LLJ &?16 UC37-17D1LLJ UC38D1LLJ M !/2 UC38-18D1LLJ #/8-24UNF (/16 UC38-19D1LLJ UC39D1LLJ M %/8 UC39-11D1LLJ !!/16 UC39-111D1LLJ #/8-24UNF #/4 UC39-112D1LLJ UC31D1LLJ M !#/16 UC31-113D1LLJ &/8 UC31-114D1LLJ !/2-2UNF !%/16 UC31-115D1LLJ UC311D1LLJ M UC311-2D1LLJ !/16 UC311-21D1LLJ !/2-2UNF !/8 UC311-22D1LLJ #/16 UC311-23D1LLJ UC312D1LLJ M !/4 UC312-24D1LLJ %/16 UC312-25D1LLJ !/2-2UNF #/8 UC312-26D1LLJ &/16 UC312-27D1LLJ Minimum allowable dimension for chamfer dimension r. Note: 1) For shaft tolerances, see the Bearing Units catalog. 2) The precision of ball bearings is as specified in JIS B 1558 Ball bearings for rolling bearing units. 3) Contact NTN Engineering for information on tapered bore ball bearings or ball bearings with bores in English measurements. 5

7 Shaft Bearing Nominal dimensions Basic load ratings Mass mm d D B C rs 1 S S1 G ds d4 F inch. 65 UC313D1LLJ M !/2 UC313-28D1LLJ !/2-2UNF (/16 UC313-29D1LLJ UC314D1LLJ M %/8 UC314-21D1LLJ !!/16 UC D1LLJ !/2-2UNF #/4 UC D1LLJ UC315D1LLJ M !#/16 UC D1LLJ &/8 UC D1LLJ (/16-18UNF !%/16 UC D1LLJ UC315-3D1LLJ UC316D1LLJ M !/16 UC316-31D1LLJ !/8 UC316-32D1LLJ (/16-18UNF #/16 UC316-33D1LLJ UC317D1LLJ M !/4 UC317-34D1LLJ %/16 UC317-35D1LLJ %/8-18UNF &/16 UC317-37D1LLJ UC318D1LLJ M &/16 UC318-37D1LLJ %/8-18UNF !/2 UC318-38D1LLJ UC319D1LLJ M %/8 UC319-31D1LLJ !!/16 UC D1LLJ %/8-18UNF #/4 UC D1LLJ UC32D1LLJ M !#/16 UC32-313D1LLJ &/8 UC32-314D1LLJ %/8-18UNF !%/16 UC32-315D1LLJ UC32-4D1LLJ Minimum allowable dimension for chamfer dimension r. Note: 1) For shaft tolerances, see the Bearing Units catalog. 2) The precision of ball bearings is as specified in JIS B 1558 Ball bearings for rolling bearing units. 3) Contact NTN Engineering for information on tapered bore ball bearings or ball bearings with bores in English measurements. 6

8 Triple-sealed ball bearings for bearing unit Type UEL3...LLJ Cylindrical bore with eccentric locking collar G ds B5 F C r d3 B d S D Triple-seal S1 B1 S Shaft Bearing Nominal dimensions Basic load ratings Mass mm d D B1 B C rs 1 S S1 G ds d3 B5 F inch 25 UEL35D1LLJ M !#/16 UEL35-13D1LLJ &/8 UEL35-14D1LLJ %/16-24UNF !%/16 UEL35-15D1LLJ UEL35-1D1LLJ UEL36D1LLJ M !/16 UEL36-11D1LLJ !/8 UEL36-12D1LLJ %/16-24UNF #/16 UEL36-13D1LLJ UEL37D1LLJ M !/4 UEL37-14D1LLJ %/16 UEL37-15D1LLJ %/16-24UNF #/8 UEL37-16D1LLJ &/16 UEL37-17D1LLJ UEL38D1LLJ M !/2 UEL38-18D1LLJ #/8-24UNF (/16 UEL38-19D1LLJ UEL39D1LLJ M %/8 UEL39-11D1LLJ !!/16 UEL39-111D1LLJ #/8-24UNF #/4 UEL39-112D1LLJ UEL31D1LLJ M !#/16 UEL31-113D1LLJ &/8 UEL31-114D1LLJ #/8-24UNF !%/16 UEL31-115D1LLJ UEL311D1LLJ M UEL311-2D1LLJ !/16 UEL311-21D1LLJ #/8-24UNF !/8 UEL311-22D1LLJ #/16 UEL311-23D1LLJ UEL312D1LLJ M !/4 UEL312-24D1LLJ %/16 UEL312-25D1LLJ #/8-24UNF #/8 UEL312-26D1LLJ &/16 UEL312-27D1LLJ Minimum allowable dimension for chamfer dimension r. Note: 1) For shaft tolerances, see Bearing Units catalog. 7

9 Shaft Bearing Nominal dimensions Basic load ratings Mass mm d D B1 B C rs 1 S S1 G ds d3 B5 F inch 65 UEL313D1LLJ M !/2 UEL313-28D1LLJ !/2-2UNF (/16 UEL313-29D1LLJ UEL314D1LLJ M %/8 UEL314-21D1LLJ !!/16 UEL D1LLJ !/2-2UNF #/4 UEL D1LLJ UEL315D1LLJ M !#/16 UEL D1LLJ &/8 UEL D1LLJ %/8-18UNF !%/16 UEL D1LLJ UEL315-3D1LLJ UEL316D1LLJ M !/16 UEL316-31D1LLJ !/8 UEL316-32D1LLJ %/8-18UNF #/16 UEL316-33D1LLJ UEL317D1LLJ M !/4 UEL317-34D1LLJ %/16 UEL317-35D1LLJ %/8-18UNF &/16 UEL317-37D1LLJ UEL318D1LLJ M &/16 UEL318-37D1LLJ #/4-16UNF !/2 UEL318-38D1LLJ UEL319D1LLJ M %/8 UEL319-31D1LLJ !!/16 UEL D1LLJ #/4-16UNF #/4 UEL D1LLJ UEL32D1LLJ M !#/16 UEL32-313D1LLJ &/8 UEL32-314D1LLJ #/4-16UNF !%/16 UEL32-315D1LLJ UEL32-4D1LLJ Minimum allowable dimension for chamfer dimension r. Note: 1) For shaft tolerances, see Bearing Units catalog. 8

10 Triple-sealed ball bearings for bearing unit Type REL2...LLJ Cylindrical bore with eccentric locking collar G B5 F C S D ds r d3 B d Triple-seal S1 B1 S Shaft Bearing 1 Nominal dimensions basic load ratings mass mm d D B1 B C rs 2 S S1 G ds d3 B5 F inch 2 REL24D1LLJ M #/4 REL24-12D1LLJ !/4-28UNF REL25D1LLJ M !#/16 REL25-13D1LLJ &/8 REL25-14D1LLJ !/4-28UNF !%/16 REL25-15D1LLJ REL25-1D1LLJ REL26D1LLJ M !/16 REL26-11D1LLJ !/8 REL26-12D1LLJ %/16-24UNF #/16 REL26-13D1LLJ !/4 REL26-14D1LLJ REL27D1LLJ M !/4 REL27-14D1LLJ %/16 REL27-15D1LLJ #/8-24UNF #/8 REL27-16D1LLJ &/16 REL27-17D1LLJ REL28D1LLJ M !/2 REL28-18D1LLJ #/8-24UNF (/16 REL28-19D1LLJ REL29D1LLJ M %/8 REL29-11D1LLJ !!/16 REL29-111D1LLJ #/8-24UNF #/4 REL29-112D1LLJ REL21D1LLJ M !!/16 REL21-113D1LLJ &/8 REL21-114D1LLJ #/8-24UNF !%/16 REL21-115D1LLJ REL21-2D1LLJ REL211D1LLJ M REL211-2D1LLJ !/16 REL211-21D1LLJ #/8-24UNF !/8 REL211-22D1LLJ #/16 REL211-23D1LLJ These numbers indicate relubricatable type. If maintenance free type is needed, please order without suffix "D1". 2 Minimum allowable dimension for chamfer dimension r. Note: 1) For shaft tolerances, see Bearing Units catalog. 2)UEL series (UEL24 UEL215)are also available with eccentric locking collars. 9

11 Shaft Bearing 1 Nominal dimensions basic load ratings mass mm d D B1 B C rs 2 S S1 G ds d3 B5 F inch 6 REL212D1LLJ M !/4 REL212-24D1LLJ %/16 REL212-25D1LLJ #/8-24UNF #/8 REL212-26D1LLJ &/16 REL212-27D1LLJ REL213D1LLJ M !/2 REL213-28D1LLJ #/8-24UNF (/16 REL213-29D1LLJ REL214D1LLJ M %/8 REL214-21D1LLJ !!/16 REL D1LLJ #/8-24UNF #/4 REL D1LLJ REL215D1LLJ M !#/16 REL D1LLJ &/8 REL D1LLJ #/8-24UNF !%/16 REL D1LLJ REL215-3D1LLJ

12 Farm implement bearings Ball bearing, square bore, spherical O.D. Type 1 Type 2 Type 3 Type 4 Shaft Bearing 1 Type Nominal dimensions Basic load ratings Mass H d R 2 D C B D1 C1 s F inch max. max, &/8 1AS8-&/8 1 &/8 4AS8-&/ AS AS8-1D AS !/8 1AS8-1.!/8 1 1!/8 2AS8-1.!/8D1 2 1!/8 4AS8-1.!/8 4 1%/32 1AS8-1. %/32D1 1 1!/4 2AS9-1.!/4D1 2 1!/4 4AS9-1.!/4 4 1!/8 2AS1-1.!/8D1 2 1!/8 3AS1-1.!/8D1 3 1!/2 1AS11-1.!/2 D1 1 1!/2 3AS11-1.!/2D1 3 1!/2 4AS11-1.!/ AS14-2D Remarks: 1) Bearings suffixed with D1 have oil holes on the outer ring. 2) R :.59 inch except 3AS14-2D1 R :.118 inch

13 Ball bearing, square bore, cylindrical O.D. Type 5 Type 6 Type 7 Shaft Bearing 1 Type Nominal dimensions Basic load ratings Mass H d R 2 D C B rs 5 F inch max. max, 1 5AS AS8-1D1 6 1!/8 5AS8-1.!/8 1!/8 6AS8-1.!/8D1 6 1!/8 7AS1-1.!/8D1 7 1!/2 7AS11-1.!/2D Remarks: 1) Bearings suffixed with D1 have oil holes on the outer ring. 2) R :.59 inch

14 Farm implement bearings Ball bearing, round bore, spherical O.D. Type 1 Type 2 Type 3 Shaft Bearing 1 Type Nominal dimensions basic load ratings mass d D C B rs inch s F 1#/16 1AC8-1. #/ AC9D !/2 3AC9-1.!/2D #/4 3AC1-1. #/4D !%/16 3AC1-1.!%/16D #/16 3AC11-2. #/16D AC14D !%/16 3AC14-1.!%/16D Remarks: 1) Bearings suffixed with D1 have oil holes on the outer ring. 13

15 Ball bearing, round bore, cylindrical O.D. Type 5 Type 7 Shaft Bearing 1 Type Nominal dimensions Basic load ratings Mass d D C B rs inch s F AC !%/16 5AC1-1.!%/ !#/32 7AC1-1.!#/32D !%/16 7AC1-1.!%/16D #/16 7AC11-2. #/16D Remarks: 1) Bearings suffixed with D1 have oil holes on the outer ring. 14