Japan, Measurement, RSK
RSK 553 I Beam Straight Edge
Product Made in Japan
Manufacturer: NIIGATA RIKEN SOKUHAN CO.,LTD
Model: 553
Features
· This is essential to measure flatness, parallelism
and squareness.
· They are either hardened or unhardened.
· This is classified into either class A or B.
and squareness.
· They are either hardened or unhardened.
· This is classified into either class A or B.
Specifications
Unit=mm
| Code # | Nominal Size | Length | Width | Thickness | Straightness (µm) | Net weight (kg) | |
| Class A (Hardened) | 553-0500Q | 500 | 500 | 50 | 10 | 7.0 | 1.5 |
| 553-0750Q | 750 | 750 | 50 | 10 | 9.5 | 3.2 | |
| 553-1000Q | 1000 | 1000 | 60 | 12 | 12.0 | 5.0 | |
| 553-1500Q | 1500 | 1500 | 70 | 15 | 17.0 | 8.5 | |
| 553-2000Q | 2000 | 2000 | 90 | 18 | 22.0 | 18.5 | |
| 553-2500Q | 2500 | 2500 | 100 | 18 | 27.0 | 25.0 | |
| 553-3000Q | 3000 | 3000 | 120 | 22 | 32.0 | 44.0 | |
| 553-3500Q | 3500 | 3500 | 130 | 22 | 37.0 | 55.0 | |
| 553-4000Q | 4000 | 4000 | 140 | 25 | 42.0 | 75.0 |
| Code # | Nominal Size | Length | Width | Thickness | Straightness (µm) | Net weight (kg) | |
| Class A (Not Hardened) | 553-0500A | 500 | 500 | 50 | 10 | 7.0 | 1.5 |
| 553-0750A | 750 | 750 | 50 | 10 | 9.5 | 3.2 | |
| 553-1000A | 1000 | 1000 | 60 | 12 | 12.0 | 5.0 | |
| 553-1500A | 1500 | 1500 | 70 | 15 | 17.0 | 8.5 | |
| 553-2000A | 2000 | 2000 | 90 | 18 | 22.0 | 18.5 | |
| 553-2500A | 2500 | 2500 | 100 | 18 | 27.0 | 25.0 | |
| 553-3000A | 3000 | 3000 | 120 | 22 | 32.0 | 44.0 | |
| 553-3500A | 3500 | 3500 | 130 | 22 | 37.0 | 55.0 | |
| 553-4000A | 4000 | 4000 | 140 | 25 | 42.0 | 75.0 |
| Code # | Nominal Size | Length | Width | Thickness | Straightness (µm) | Net weight (kg) | |
| Class B (Not Hardened) | 553-0500B | 500 | 500 | 50 | 10 | 20.0 | 1.5 |
| 553-0750B | 750 | 750 | 50 | 10 | 25.0 | 3.2 | |
| 553-1000B | 1000 | 1000 | 60 | 12 | 30.0 | 5.0 | |
| 553-1500B | 1500 | 1500 | 70 | 15 | 40.0 | 8.5 | |
| 553-2000B | 2000 | 2000 | 90 | 18 | 50.0 | 18.5 | |
| 553-2500B | 2500 | 2500 | 100 | 18 | 60.0 | 25.0 | |
| 553-3000B | 3000 | 3000 | 120 | 22 | 70.0 | 44.0 | |
| 553-3500B | 3500 | 3500 | 130 | 22 | 80.0 | 55.0 | |
| 553-4000B | 4000 | 4000 | 140 | 25 | 90.0 | 45.0 |
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