BV — worm gearboxes, compact housing
Compact worm gear reducers, sizes 030 to 090, ratios 7 to 100, up to 350 Nm.
The BV series is the compact worm gearbox range in die-cast aluminium. Sizes 030, 040 and 050 have a round housing that fits very tight transmissions and take modular feet for four fixing positions; sizes 063 to 090 have a square housing. All sizes are lubricated for life and can be mounted in any position.
Key characteristics
Small conveyors, doors and gates, packaging, food-processing and assembly equipment.
- IEC input flange B5 / B14 (PAM 56 – 112) or solid input shaft
- Hollow output shaft; solid shafts, output flanges and torque arm as accessories
- Pre-stage (BVPC) and combined double-worm (BVC / BVSC) configurations
- Epoxy finish RAL 9022
- Synthetic lubrication for life, universal mounting
Available range
| Size | Ratio i | Max. output torque T₂ (Nm) | Input power P₁ (kW) | IEC motor flange (PAM) | Weight (kg) |
|---|---|---|---|---|---|
| BV 030 | 7 – 70 | 22 | 0.09 – 0.25 | 56, 63 B5/B14 | 1 |
| BV 040 | 7 – 100 | 41 | 0.12 – 0.55 | 63, 71 B5/B14 | 2.1 |
| BV 050 | 7 – 100 | 73 | 0.18 – 1.1 | 63, 71, 80 B5/B14 | 3 |
| BV 063 | 7 – 100 | 155 | 0.37 – 2.2 | 71, 80, 90 B5/B14 | 5.2 |
| BV 075 | 7 – 100 | 250 | 0.37 – 4.0 | 71, 80, 90, 100 B5/B14 | 9.2 |
| BV 090 | 7 – 100 | 350 | 0.55 – 4.0 | 80 – 112 B5/B14 | 12.2 |
Technical specification
| Housing | Die-cast aluminium; round with modular feet (030, 040, 050) or square (063, 075, 090) |
|---|---|
| Sizes | 030, 040, 050, 063, 075, 090 |
| Reduction ratios | 7 – 100 (030: 7 – 70) |
| Output torque | ≤ 350 Nm (BV 090) |
| Input power | 0.09 – 4 kW |
| Input | IEC motor flange B5 / B14 (PAM 56 – 112) or solid input shaft |
| Output | Hollow shaft; single or double solid output shaft as accessory |
| Finish | Epoxy paint RAL 9022 |
| Lubrication | Synthetic, lubricated for life, universal mounting position |
| Mounting | Fixing positions P, A, V, N (030 – 050 via modular feet); B3, B6, B7, B8, V5, V6 |
| Max. input speed | 2 800 rpm |
Mounting arrangements
Fixing positions P, A, V, N (030 – 050 via modular feet); B3, B6, B7, B8, V5, V6
- B3Foot-mounted
- B6Foot, side
- B7Foot, side
- B8Foot, inverted
- V5Vertical, shaft down
- V6Vertical, shaft up
Configurations
| Code | Input | Sizes |
|---|---|---|
| BV | IEC input flange B5 / B14 | 030 – 090 |
| BVS | Single solid input shaft | 030 – 090 |
| BVB | IEC input flange and solid input shaft | 030 – 090 |
| BVSB | Double solid input shaft | 030 – 090 |
| BVPC | Integrated pre-stage with IEC flange | pre-stage |
| BVC | Double worm (combined) with IEC flange | combined |
| BVSC | Double worm (combined) with solid input shaft | combined |
Technical downloads
3D / CAD models
3D models (STEP) and 2D drawings are available for every BV variant on our distributor's product pages. Downloading requires a free customer account.
Typical applications
General machinery
Production machines and assembly lines running for long periods: three-phase BMT and BCT motors, worm gearboxes with pre-stage for low speeds.
Packaging
Conveyors, filling, wrapping and labelling machines: BMT motors with BG or BV gearboxes for compact right-angle drives.
Assembly and disassembly
Modular gearbox configurations and accessories simplify integration and servicing.
Related Bernati ranges
worm gearboxes, square housing
Square worm gear reducers, sizes 025 to 150, ratios 7.5 to 100, up to 1 610 Nm.
- Sizes025 – 150
- Reduction ratios7.5 – 100
- Output torque≤ 1 610 Nm
three-phase motors, aluminium frame
Three-phase IEC motors in aluminium frames 56 to 160, IE1 / IE3 / IE4, 0.09 – 22 kW.
- IEC frame sizes56 – 160
- Rated power (kW)0.09 – 22
- Efficiency classesIE1, IE3, IE4
single-phase motors, aluminium frame
Single-phase capacitor-run motors, frames 56 to 100, 0.09 – 3.0 kW, 230 V.
- IEC frame sizes56 – 100
- Rated power (kW)0.09 – 3.0
- Poles2, 4, 6