IKO BHA 1812 Z,BHAM 1812,BHA 1816 Z,BHAM 1816 SHELL TYPE NEEDLE ROLLER BEARINGS
IKO BHA 1812 Z,BHAM 1812,BHA 1816 Z,BHAM 1816 Description
| Shaft dia.
mm (inch) | Identification number | |||||||||
| Standard | Mass (Ref. ) g | Closed end | Mass (Ref. ) g | Standard | Mass (Ref. ) g | Closed end | Mass (Ref. ) g | Grease retained | Mass (Ref. ) g | |
| BA 186 Z | 14.5 | BAM 186 | 18.1 | ─ ─ ─ ─ ─ ─ ─ ─ | ─ ─ ─ ─ ─ ─ ─ ─ | ─ ─ ─ ─ ─ ─ ─ ─ | ─ ─ ─ ─ ─ ─ ─ ─ | ─ ─ ─ ─ ─ YB 188 YB 1812 YB 1816 | ─ ─ ─ ─ ─ 25.5 38.5 51.5 | |
| BA 188 Z | 19.5 | BAM 188 | 23 | |||||||
| BA 1812 Z | 29.5 | BAM 1812 | 33 | |||||||
| BA 1816 Z | 39 | BAM 1816 | 42.5 | |||||||
| BA 1820 Z | 48.5 | BAM 1820 | 52 | |||||||
| 28.575 | ─ | ─ | ─ | ─ | ||||||
| 1 1╱8 ） | ─ ─ | ─ ─ | ─ ─ | ─ ─ | ||||||
| ─ ─ ─ ─ | ─ ─ ─ ─ | ─ ─ ─ ─ | ─ ─ ─ ─ | BHA 1812 Z BHA 1816 Z BHA 1818 Z BHA 1820 Z | 45 60 67.5 73.5 | BHAM 1812 BHAM 1816 BHAM 1818 BHAM 1820 | 49 64 71.5 78 | ─ ─ ─ ─ | ─ ─ ─ ─ | |
| 30.162 1 3╱16） | BA 1910 Z BA 1916 Z ─ | 32.5 52 | BAM 1910 BAM 1916 ─ | 37.5 57 ─ | ─ ─ ─ | ─ ─ ─ | ─ ─ ─ | ─ ─ ─ | ─ ─ YB 1910 | ─ ─ 42.5 |
| Boundary dimensions mm(inch) | Standard mounting dimensions mm | Basic dynamic load rating C N | Basic static load rating C0 N | Allowable rotational speed(1)
min-1 | Assembled inner ring | ||||||
| Fw | D | C | t1 Max. | Shaft dia. h6 | Housing bore dia. J7 | ||||||
| Max. | Min. | Max. | Min. | ||||||||
| 28.575（1 1╱8） 28.575（1 1╱8） 28.575（1 1╱8） 28.575（1 1╱8） 28.575（1 1╱8） 28.575（1 1╱8） 28.575（1 1╱8） 28.575（1 1╱8） | 34.925（1 3╱8） 34.925（1 3╱8） 34.925（1 3╱8） 34.925（1 3╱8） 34.925（1 3╱8） 34.925（1 3╱8） 34.925（1 3╱8） 34.925（1 3╱8） | 9.52(. 375) 12.70( .500) 19.05( .750) 25.40(1.000) 31.75(1.250) 12.70( .500) 19.05( .750) 25.40(1.000) | 2.8 2.8 2.8 2.8 2.8 ─ ─ ─ |
28.575 |
28.562 |
34.939 |
34.914 | 6 330 8 680 15 000 20 500 25 700 20 700 30 000 38 700 | 8 910 13 400 26 900 40 300 53 900 40 500 65 300 90 400 | 13 000 13 000 13 000 13 000 13 000 5 500 5 500 5 500 | ─ IRB 148 IRB 1412 IRB 1416 IRB 1420 IRB 148 IRB 1412 IRB 1416 |
| 28.575（1 1╱8） 28.575（1 1╱8） 28.575（1 1╱8） 28.575（1 1╱8） | 38.100（1 1╱2） 38.100（1 1╱2） 38.100（1 1╱2） 38.100（1 1╱2） | 19.05( .750) 25.40(1.000) 28.58(1.125) 31.75(1.250) | 3.4 3.4 3.4 3.4 |
28.575 |
28.562 |
38.114 |
38.089 | 22 500 30 900 34 900 37 100 | 32 200 48 600 56 600 61 100 | 13 000 13 000 13 000 13 000 | IRB 1412 IRB 1416 ─ IRB 1420 |
| 30.162（1 3╱16 30.162（1 3╱16 30.162（1 3╱16 | 38.100（1 1╱2） 38.100（1 1╱2） 38.100（1 1╱2） | 15.88( .625) 25.40(1.000) 15.88( .625) | 2.8 2.8 ─ | 30.162 | 30.146 | 38.114 | 38.089 | 15 000 25 800 28 400 | 22 500 45 300 53 600 | 12 000 12 000 5 000 | ─ ─ ─ |
IKO BHA 1812 Z,BHAM 1812,BHA 1816 Z,BHAM 1816 Nots
Note(1) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.
Remarks1. ”W” in the identification number indicates that rolling elements are arranged in double rows.
2. Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type and
closed end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types of
bearings.
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