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Product Specifications:
| Item | Bevel Gear |
| Bevel Gear & Pinion Mapping | SB1.25XR2.5M1.25X1845 |
| Bore Dia. | 8 mm |
| Bore Dia. Tolerance | H7 |
| Bore Type | Plain |
| Face Width | 9 mm |
| Finish | Black Oxide |
| Gear Material & Finish | Black Oxide Coated Carbon Steel |
| Gear Ratio | 2.5 |
| Gear Shape | B3 |
| Grade | Grade S45C |
| Hub Dia. | 19 mm |
| Hub Projection | 11.2 mm |
| Material | Carbon Steel |
| Material Grade | S45C |
| Max. Teeth Hardness | 194 HB |
| Metric Module Pitch | 1.25 |
| Module Pitch | 1.25 |
| Mounting Distance | 40 mm |
| No. Of Teeth | 18 |
| Outside Dia. | 25.72 mm |
| Overall Length | 20.66 mm |
| Pitch Dia. | 22.5 mm |
| Precision Class | JIS B 1704:1978 Grade 3 |
| Pressure Angle | 20° |
| Shape | B3 |
| Surface Treatement Builder | Black Oxide SB1.25-1845 |
| Surface Treatment | Black Oxide Coated |
| System Of Measurement | Metric |
| Tooth Finish Type | Non Ground |
| Tooth Form | Straight |
Shipping Info:
| Ship weight (kg) | 0.06 |
| Ship height (cm) | 2.5 |
| Ship length (cm) | 2.07 |
| Ship width (cm) | 2.5 |
| Country of Origin | JP |
Product Variants
| Product | Model | Pitch Dia. | Material | Hub Dia. | No. Of Teeth | Bore Dia. | Face Width | Bore Dia. Tolerance | Shape | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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SB1.5-2030 | 30 mm | Carbon Steel | 25 mm | 20 | 8 mm | 9 mm | H7 | B3 | €46.03 | |
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PB1.5-2030 | 30 mm | Nylon | 25 mm | 20 | 8 mm | 9 mm | -0.2 mm to +0.2 mm | B3 | €44.81 | |
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SUB1.5-2030 | 30 mm | Stainless Steel | 25 mm | 20 | 8 mm | 9 mm | H7 | B3 | €80.52 | |
![]() |
SB1.5-3020 | 45 mm | Carbon Steel | 30 mm | 30 | 10 mm | 9 mm | H7 | B4 | €63.40 | |
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PB1.5-3020 | 45 mm | Nylon | 30 mm | 30 | 10 mm | - | -0.2 mm to +0.2 mm | B4 | €63.25 | |
![]() |
SUB1.5-3020 | 45 mm | Stainless Steel | 30 mm | 30 | 10 mm | 9 mm | H7 | B4 | €117.14 | |
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SB2-2030 | 40 mm | Carbon Steel | 30 mm | 20 | 10 mm | 11 mm | H7 | B3 | €60.00 |
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KHK GEARS SB1.25-1845 Bevel Gear, Straight, Gear Ratio 2.5, Module m 1.25, 18 Teeth, Black Oxide-Coated Steel
€40.00 /unit


