Bauer BF Series Parallel Shaft Geared Motors
The Bauer BF Series (featured model: BF30-04/D09SA4 0.75 kW IE3) is the flagship parallel shaft helical geared motor from Bauer Gear Motor, setting the global benchmark for space-saving, narrow-profile drive installations. Featuring standard IP65 total enclosure protection (IP66, IP67, and IP68 submersed protection optional), BF series gearmotors are completely dust-tight and resistant to high-pressure water jets. Engineered with a compact offset output shaft, hollow shaft bore options, and specialized rubber-buffered torque arm assemblies, Bauer BF units offer unmatched irreplaceability in overhead cranes, hoists, belt conveyors, and agitators. Covering motor power ratings from 0.03 kW to 75 kW across 11 frame sizes (BF06 to BF100), the BF series seamlessly integrates with modern **IE3 Premium Efficiency motors** (D09 to D18) to replace legacy Bauer DK series and older IE1/IE2 motors in severe industrial environments.
Technical Specifications
| Featured Model | BF30-04/D09SA4 (Size BF30, 2-Stage Parallel Shaft, 0.75 kW IE3 Premium Efficiency Motor) |
|---|---|
| Brand / Manufacturer | Bauer Gear Motor (Altra Industrial Motion / Regal Rexnord) |
| Product Series | BF Series Parallel Shaft Shaft-Mounted Geared Motors |
| Frame Sizes Covered | BF06, BF10, BF20, BF30, BF40, BF50, BF60, BF70, BF80, BF90, BF100 (11 Sizes) |
| Enclosure Protection Class | IP65 Standard (IP66, IP67 & IP68 Submersed Protection Optional) |
| Nominal Torque Output | 90 Nm to 18,500 Nm (Full Series Transmissible Torque Capacity) |
| Motor Power Ratings | 0.03 kW to 75.0 kW (IE3 Premium Efficiency D.. Series Motors) |
| Shaft & Mounting Options | Hollow Shaft with Keyway, Hollow Shaft with Shrink Disc, Solid Shaft, Rubber Buffer Torque Arm |
Documentation & Resources
Bauer BF Series Frame Size & Motor Power Matching Matrix
Full selection matrix for Bauer BF series parallel shaft geared motors. Review torque capacity, allowable overhung loads, and matched motor power across 11 frame sizes:
| Bauer Frame Size | Max Output Torque (Nm) | Matched Motor Power (kW) | Matched Bauer Motor Frame (IE3) | Standard Hollow Shaft Bore (mm) |
|---|---|---|---|---|
| BF06 | 90 Nm | 0.03 kW - 0.55 kW | D04, D05, D06, D07, D08 | 20 mm / 25 mm hollow shaft |
| BF10 | 180 Nm | 0.09 kW - 1.1 kW | D05, D06, D07, D08, D09S | 25 mm / 30 mm hollow shaft |
| BF20 | 350 Nm | 0.12 kW - 2.2 kW | D06, D07, D08, D09, D10 | 30 mm / 35 mm hollow shaft |
| BF30 | 650 Nm | 0.25 kW - 5.5 kW | D07, D08, D09SA4 (IE3), D11 | 35 mm / 40 mm hollow shaft |
| BF40 | 1,150 Nm | 0.55 kW - 9.2 kW | D08, D09LA4 (IE3), D11, D13 | 40 mm / 50 mm hollow shaft |
| BF50 | 2,100 Nm | 1.1 kW - 15.0 kW | D09, D11SA4 (IE3), D13, D16 | 50 mm / 60 mm hollow shaft |
| BF60 | 3,600 Nm | 1.5 kW - 22.0 kW | D11MA4 (IE3), D13, D16, D18 | 60 mm / 70 mm hollow shaft |
| BF70 to BF100 | 6,500 Nm - 18,500 Nm | 4.0 kW - 75.0 kW | D13, D16, D18, D22 Heavy Duty | 70 mm to 110 mm hollow shaft |
Legacy Bauer DK Series to BF Series IE3 Premium Efficiency Upgrade Guide
Obsolete Bauer DK Series parallel shaft gearmotors (DK06, DK08, DK10, DK20, DK30) can be upgraded to modern BF Series gearmotors equipped with IE3 Premium Efficiency motors while preserving 100% exact shaft centerlines and torque arm reaction points:
| Legacy Bauer Model (Obsolete) | Legacy Motor Frame | Current BF IE3 Equivalent Model | Current IE3 Motor Frame | Mechanical Compatibility & Retrofit Notes |
|---|---|---|---|---|
| Bauer DK06-04 / DK08-04 | D04 / D05 Motor | Bauer BF06-04/D05LA4 100% Drop-In | D05LA4 (IE3) | Direct 1:1 drop-in replacement. Fits 25mm hollow shaft & IP65 enclosure. |
| Bauer DK10-04 / DK12-04 | D06 / D07 Motor | Bauer BF10-04/D08MA4 100% Drop-In | D08MA4 (IE3) | Identical torque arm rubber buffer mounting and 30mm hollow shaft bore. |
| Bauer DK20-04 / DK22-04 | D08 Motor | Bauer BF20-04/D08MA4 100% Drop-In | D08MA4 (IE3) | Matches 35mm hollow shaft. IE3 motor reduces power consumption up to 12%. |
| Bauer DK30-04 / DK32-04 | D09 Motor | Bauer BF30-04/D09SA4 IE3 Upgrade | D09SA4 (IE3 Premium) | Direct replacement for 0.75 kW crane drives. 40mm hollow shaft bore. |
| Bauer DK40-04 / DK42-04 | D09 / D11 Motor | Bauer BF40-04/D09LA4 IE3 Upgrade | D09LA4 (IE3 Premium) | Direct replacement for 1.5 kW drives. Maintains IP65 standard enclosure. |
Expert Selection & Retrofit Engineering Notes
When replacing older Bauer DK Series parallel shaft gearmotors on existing production lines, switching to current BF series models with IE3 Premium Efficiency motors guarantees 100% exact physical mounting alignment without modifying torque arm brackets or output shafts. Simply supply us with your existing Bauer nameplate serial number (e.g., BF30-04/D09SA4/IP65), and our technical team will deliver a 100% compliant replacement specification and proposal.
Core Benchmark Model Standard Configurations
- BF06-04/D04LA4 (0.09 kW)
- BF06-04/D05LA4 (0.18 kW)
- BF10-04/D06LA4 (0.25 kW)
- BF10-04/D08MA4 (0.55 kW)
- BF20-04/D08MA4 (0.55 kW)
- BF20-04/D09SA4 (0.75 kW IE3)
- BF30-04/D09SA4 (0.75 kW IE3)
- BF30-04/D09LA4 (1.5 kW IE3)
- BF40-04/D09LA4 (1.5 kW IE3)
- BF40-04/D11SA4 (2.2 kW IE3)
- BF50-04/D11SA4 (2.2 kW IE3)
- BF50-04/D11MA4 (4.0 kW IE3)
- BF60-04/D11MA4 (4.0 kW IE3)
- BF60-04/D13MA4 (5.5 kW IE3)
- BFF30-04/D09SA4 (B5 Flange)
- BFF40-04/D09LA4 (B5 Flange)
- Bauer DK06-04 Replacement
- Bauer DK10-04 Replacement
- Bauer DK20-04 Replacement
- Bauer DK30-04 Replacement
