- Loyal
- 638
638 Bearing | Loyal
| 638 interchange KOYO 638 | |
| 638 cross reference KOYO 638 | |
| 638 Equivalent bearing interchange guide: | |
| Price: | enquiry |
| Model Number: | 638 |
| D | 28 mm |
| d | 8 mm |
| B | 9 mm |
| C | 9 mm |
| Cu | 0.100 |
| f0 | 12.3 |
| Cr | 5.65 |
| C0r | 1.95 |
| r(min) | 0.3 |
| r min. | 0,3 mm |
| Weight | 0,029 Kg |
| da(min) | 10 |
| Da max. | 26 mm |
| ra max. | 0,3 mm |
| da min. | 10 mm |
| r1 min. | 0,3 mm |
| Da(max) | 26 |
| ra(max) | 0.3 |
| Oil lub. | 32000 |
| Size (mm) | 8x28x9 |
| Width (mm) | 9 |
| Grease lub. | 26000 |
| Bearing No. | 638 |
| Bearing number | 638 |
| (Refer.)Mass(g) | 29 |
| Bore Diameter (mm) | 8 |
| Outer Diameter (mm) | 28 |
| (Oil) Lubrication Speed | 32000 r/min |
| (Grease) Lubrication Speed | 26000 r/min |
| Basic static load rating (C0) | 1,95 kN |
| Basic dynamic load rating (C) | 4,55 kN |
UCTH211-32J-300 with Setscrew(inch)
CNSORDERNO: Normal-duty(2)
TOGN: UCTH211-32J-300
SDI: B-R1/8
SD: 2.00000000
ZKX12-34 Tapered bore (with adapter) inch - ZK series
DVIS: A-1/4-28UNF
CNSORDERNO: Medium-duty(X)
SDI: ZKX12-34
SD: 2 1/8
ZK212-34 Tapered bore (with adapter) inch - ZK series
DVIS: A-1/4-28UNF
CNSORDERNO: Normal-duty(2)
SDI: ZK212-34
SD: 2 1/8
UCTH212-39J-300 with Setscrew(inch)
CNSORDERNO: Normal-duty(2)
TOGN: UCTH212-39J-300
SDI: B-R1/8
SD: 2 7/16



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