

IKO IRT 5045-1,IRT 5050-1 INNER RINGS
IKO IRT 5045-1,IRT 5050-1 Description
|   Shaft dia. 
 mm  |   
 Identification number  | Mass (Ref.) 
 
 g  | Boundary dimensions mm | Standard mounting dimension mm d a  | Assembled bearings | |||||||
| d | F | B | (1) rs min  | TA … Z (TAM) | TLA … Z (TLAM) | YT YTL | ||||||
| Min. | Max. | |||||||||||
|   
 
 
 50  | IRT 5020-1 IRT 5025-1 IRT 5030-1 IRT 5040-1 IRT 5045-1 IRT 5050-1 IRT 5025 IRT 5030 IRT 5040 IRT 5045 IRT 5050  | 65 81 96.5 128 144 160 169 205 270 300 335  | 50 50 50 50 50 50 50 50 50 50 50  | 55 55 55 55 55 55 60 60 60 60 60  | 20.5 25.5 30.5 40.5 45.5 50.5 25.5 30.5 40.5 45.5 50.5  | 0.6 0.6 0.6 0.6 0.6 0.6 1.5 1.5 1.5 1.5 1.5  | 54 54 54 54 54 54 58 58 58 58 58  | 54.5 54.5 54.5 54.5 54.5 54.5 59 59 59 59 59  | TA     5520Z TA 5525Z TA 5530Z TA 5540Z TAW 5545Z TAW 5550Z TA 6025Z TA 6030Z TA 6040Z TAW 6045Z TAW 6050Z  | TLA 5520Z TLA 5525Z ─ ─ ─ ─ ─ ─ ─ ─ ─  | ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─  | |
| 52 | IRT 5212 | 86 | 52 | 62 | 12.5 | 1.5 | 60 | 60.5 | TA 6212Z | ─ | ─ | |
|   55  | IRT 5525 IRT 5530 IRT 5545 IRT 5550  | 185 220 330 365  | 55 55 55 55  | 65 65 65 65  | 25.5 30.5 45.5 50.5  | 1.5 1.5 1.5 1.5  | 63 63 63 63  | 63.5 63.5 63.5 63.5  | TA  6525Z TA 6530Z TAW 6545Z TAW 6550Z  | ─ ─ ─ ─  | ─ ─ ─ ─  | |
|   60  | IRT 6025 IRT 6030 IRT 6040 IRT 6050  | 200 240 320 395  | 60 60 60 60  | 70 70 70 70  | 25.5 30.5 40.5 50.5  | 1.5 1.5 1.5 1.5  | 68 68 68 68  | 68.5 68.5 68.5 68.5  | TA     7025Z TA 7030Z TA 7040Z TAW 7050Z  | ─ ─ ─ ─  | ─ ─ ─ ─  | |
|   Shaft dia. mm (inch)  |   Identification number  | Mass (Ref.) 
 
 g  | Boundary dimensions mm(inch) | Standard mounting dimensions mm (1)  | Assembled bearings | ||||||
| d | F | B | d a | ras max Max.  | BA … Z (BAM) | BHA … Z (BHAM) | YB YBH | ||||
| Min. | Max. | ||||||||||
| 7.938 ( 5╱16 )  | IRB 58 | 8 | 7.938( 5╱16) | 12.700( 1╱2) | 13.08 | 11.3 | 11.7 | 0.3 |   BA 88Z  |   BHA 88Z  |   YB 88  | 
|   9.525 ( 3╱8 )  | IRB    68 IRB 68-1 
 IRB 612 IRB 612-1  | 8.9 12.6 
 13.2 18.8  | 9.525( 3╱8) 9.525( 3╱8) 9.525( 3╱8) 9.525( 3╱8)  | 14.288( 9╱16) 15.875( 5╱8) 14.288( 9╱16) 15.875( 5╱8)  | 13.08 13.08 
 19.43 19.43  | 12.8 12.8 
 12.8 12.8  | 13.2 14 
 13.2 14  | 0.3 0.3 
 0.3 0.3  | BA     98Z BA 108Z 
 BA 912Z BA 1012Z  | BHA 98Z BHA 108Z ─ BHA 1012Z  | YB         98 YB 108 YBH 108 YB 912 YB 1012  | 
|   11.112 ( 7╱16 )  | IRB    78 
 IRB 712 IRB 714 IRB 716  | 10.1 
 15 17.4 19.9  | 11.112( 7╱16) 11.112( 7╱16) 11.112( 7╱16) 11.112( 7╱16)  | 15.875( 5╱8) 15.875( 5╱8) 15.875( 5╱8) 15.875( 5╱8)  | 13.08 
 19.43 22.60 25.78  | 14.4 
 14.4 14.4 14.4  | 14.8 
 14.8 14.8 14.8  | 0.3 
 0.3 0.3 0.3  | BA 108Z 
 BA 1012Z BA 1014Z BA 1016Z  | BHA 108Z 
 BHA 1012Z ─ BHA 1016Z  | YB 108 YBH 108 YB 1012 ─ ─  | 
|   
 12.700 ( 1╱2)  | IRB    86 IRB 88 IRB 812 IRB 88-1 IRB 810-1 IRB 812-1 IRB 814-1 IRB 816-1  | 8.5 11.2 16.7 15.8 19.6 23.5 27.5 31  | 12.700( 1╱2) 12.700( 1╱2) 12.700( 1╱2) 12.700( 1╱2) 12.700( 1╱2) 12.700( 1╱2) 12.700( 1╱2) 12.700( 1╱2)  | 17.462(11╱16) 17.462(11╱16) 17.462(11╱16) 19.050( 3╱4) 19.050( 3╱4) 19.050( 3╱4) 19.050( 3╱4) 19.050( 3╱4)  | 9.90 13.08 19.43 13.08 16.25 19.43 22.60 25.78  | 16.9 16.9 16.9 16.9 16.9 16.9 16.9 16.9  | 16.9 16.9 16.9 17.5 17.5 17.5 17.5 17.5  | 0.3 0.3 0.3 0.6 0.6 0.6 0.6 0.6  | BA 116Z BA 118Z BA 1112Z BA 128Z BA 1210Z BA 1212Z BA 1214Z BA 1216Z  | ─ BHA 118Z BHA 1112Z ─ ─ BHA 1212Z ─ ─  | ─ ─ YB 1112 YB 128 YB 1210 YB 1212 ─ ─  | 
|   14.288 ( 9╱16 )  | IRB    98 IRB 910 IRB 912 IRB 914 IRB 916 IRB 920  | 17.3 21.5 26 30 34.5 43  | 14.288( 9╱16) 14.288( 9╱16) 14.288( 9╱16) 14.288( 9╱16) 14.288( 9╱16) 14.288( 9╱16)  | 20.638(13╱16) 20.638(13╱16) 20.638(13╱16) 20.638(13╱16) 20.638(13╱16) 20.638(13╱16)  | 13.08 16.25 19.43 22.60 25.78 32.13  | 19 19 19 19 19 19  | 19.6 19.6 19.6 19.6 19.6 19.6  | 0.6 0.6 0.6 0.6 0.6 0.6  | BA 138Z BA 1310Z BA 1312Z BA 1314Z BA 1316Z BA 1320Z | BHA 138Z BHA 1310Z BHA 1312Z ─ ─ ─  | YB 138 YBH 1310 YBH 1312 ─ ─ ─  | 
| 15.875 ( 5╱8)  | IRB 106 IRB 108 IRB 1012  | 14.5 18.9 28  | 15.875( 5╱8) 15.875( 5╱8) 15.875( 5╱8)  | 22.225( 7╱8) 22.225( 7╱8) 22.225( 7╱8)  | 9.90 13.08 19.43  | 20.7 20.7 20.7  | 21.2 21.2 21.2  | 0.6 0.6 0.6  | BA 146Z BA 148Z BA 1412Z  | ─ ─ BHA 1412Z  | ─ YB 148 YB 1412  | 

IKO IRT 5045-1,IRT 5050-1 Nots
Note(1)  Minimum allowable value of chamfer dimension r
Remark No oil hole is provided.

