SKU: RB320BH
RB Hubs / Flanges
RB.320 Bush Half Hub Pilot Bore (Pilot Bore)
£244.61
ex. VAT · £293.53 inc. VAT
JS9 Tight Fit Anti-Roll
H7 Precision Transition Fit
ISO 9001 Quality Assured
Technical Specifications
Rated Torque (Nm)
6099
kW Rating at 100rpm
63.87
Maximum Speed rpm
2100
Minimum Bore (mm)
55
Max. Bore ød1 (mm)
125
Max. Bore ød2 (mm)
135
ø A (mm)
320
ø D1 (mm)
196
ø D2 (mm)
212
E (mm)
125
C (mm)
4-10
Moment of Inertia kg.m²
0.53
Max. Misalignment Angular
1
Max. Misalignment parallel
0.7
Max. Misalignment Axial
3
No. of holes
12
Weight
0.01kg
Standards & Fit
JS9
JS9 Keyway
Tight fit anti-roll standard
H7
Precision Transition Fit
Precision bore fit
ISO
ISO 9001:2015
Quality Assured
| Parameter | Value | Notes |
|---|---|---|
| SKU | RB320BH | Aroflex part number |
| Rated Torque (Nm) | 6099 | |
| kW Rating at 100rpm | 63.87 | |
| Maximum Speed rpm | 2100 | |
| Minimum Bore (mm) | 55 | |
| Max. Bore ød1 (mm) | 125 | |
| Max. Bore ød2 (mm) | 135 | |
| ø A (mm) | 320 | |
| ø D1 (mm) | 196 | |
| ø D2 (mm) | 212 | |
| E (mm) | 125 | |
| C (mm) | 4-10 | |
| Moment of Inertia kg.m² | 0.53 | |
| Max. Misalignment Angular | 1 | |
| Max. Misalignment parallel | 0.7 | |
| Max. Misalignment Axial | 3 | |
| No. of holes | 12 | |
| Weight | 0.01 kg | |
| Bore Tolerance | H7 | Precision transition fit |
| Material | Steel / Friction disc | Standard construction |
| Certification | ISO 9001:2015 | Quality assured |
RB.320 Bush Half Hub (Pilot Bore)
The RB.320 Bush Half Hub serves as the companion mating element in the RB.320 flexible coupling group. Supplied with a standard pilot bore for custom re-boring and keying, this precision hub houses the barrel-shaped elastomeric bushes. It is critical for absorbing torque peaks and stabilizing parallel or angular misalignment.
Product Features
- Model Size: RB.320 Configuration
- Hub Class: Bush Half Variant
- Bore Type: Pilot Bore for tailored installation options.
- Custom Machining: Available with custom boring and keying profiles tailored to your shaft requirements through our In-House Machining Services.

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