Spiral Bevel Right Angle Gearboxes, 1:1 or 2:1 Ratio

2-Way and 3-Way Models. Hollow Bore and Counter Rotating Configurations Too.

  • Sealed, Leak Proof Gearcase
  • Machined Aluminum Construction
  • Anodized Gearcase
  • 303/304 Stainless Steel Shafts
  • 8620 12DP 22T Heat-Treated Case-Hardened Gears
  • Double Sealed Ball Bearings
  • Tapered Roller Bearings
  • Dual Lip Spring Loaded Shaft Seals
  • Stainless Steel Fasteners
  • Pre-Lubricated w/Lubriplate 1500
  • Zerk Porting
  • Stainless Steel Keys Included
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Branham Expands Spiral Bevel Gearbox Product Line

Now! 4.125 in. wide 2- and 3-Way #4303 models. Select from .750 and 1.00 inch shafts as well as 20 and 25mm shafts with metric mounting. Stainless steel keys, fasteners and shafting. A Spiral Bevel 2:1 with 5.00 wide body, 3-Way and .750 inch shafts gearbox has been added too.

Our #4304 models are 100% mounting interchangeable with like models from companies such as Zero-Max and Mitrpak. Our mattress industry series gearboxes are directly interchangeable with Cyclo-Index and Gribetz Intl.

All models are constructed with double sealed, heavy duty ball bearings and case-hardened gears.

Torque Table For 2.125 and 2.57 in. Housing Width Spiral Bevel Gearboxes

RPM HP Torque, in. lb.
50 .06 76
100 .13 82
200 .26 82
300 .39 82
600 .75 79
900 1.0 70
1200 1.3 68
1800 1.8 63

Torque Table For 3.188 Housing Width Spiral Bevel Gearboxes

RPM HP Output Torque, in. lb.
50 .07 93
100 .15 97
200 .30 95
400 .60 95
600 .73 77
900 1.1 77
1200 1.46 77
1800 2.05 72
2400 2.60 68
3000 3.09 65

Torque Table For 4.125 in. Housing Width Spiral Bevel Gearboxes

RPM HP Torque, in. lb.
100 1.1 693
300 3.1 650
400 4.1 645
690 6.8 620
850 8.3 615
1150 10.9 600
1750 16.1 580

Torque Table For 5.00 in. Housing Width Spiral Bevel Gearboxes

RPM HP Torque, in. lb.
100 0.7 876
300 2.0 829
400 2.6 815
690 4.3 788
850 5.2 777
1150 6.9 761
1750 10.2 736
2400 13.7 717

Branham Spiral Bevel Gearboxes

Product # # of Ball Bearings # of Shafts Model # Housing Width (in.) Max RPM Max Torque, (in.lb.) Mounting Type Ratio Shaft Dia.  
4304-0403 4 2-Way 2SB2.125/1:1FMSBM.625 2.125 1800 82 Flange & Side Base 1:1 .625 in.
4304-0412 4 2-Way 2SB2.125/1:1SBM.625 2.125 1800 82 Side Base 1:1 .625 in.
4304-0428 4 2-Way 2SB2.125/1:1BM.500 2.125 1800 82 Base Mount 1:1 .500 in.
4304-0401 6 3-Way 3SB2.125/1:1FMSBM.625 2.125 1800 82 Flange & Side Base 1:1 .625 in.
4304-0402 6 3-Way 3SB2.125/1:1SBM.625 2.125 1800 82 Side Base 1:1 .625 in.
$484.36
4304-0416 6 3-Way Counter Rotate 3SB2.125/1:1FMSBMCR.625 2.125 1800 82 Flange & Side Base 1:1 .625 in.
4304-0601 6 1, Hollow Bore 3HBSB2.57/1:1SBM.625 2.57 1800 82 Side Base 1:1 .625 in.
4304-0602 4 2-Way 2SB2.57/1:1SBM.625 2.57 1800 82 Side Base 1:1 .625 in.
4304-0600 6 3-Way 3SB2.57/1:1SBM.625 2.57 1800 82 Side Base 1:1 .625 in.
4303-0041 2 2-Way 2SB4.125/1:1BM.750 4.125 1750 693 Base 1:1 .750 in.
$1,357.61
4303-0040 2 2-Way 2SB4.125/1:1BM1.00 4.125 1750 693 Base 1:1 1.00 in.
4303-0043 2 2-Way 2SB4.125/1:1BM25 4.125 1750 693 Base 1:1 25 mm
4303-0045 2 2-Way 2SB4.125/1:1BM20 4.125 1750 693 Base 1:1 20 mm
4303-0030 3 3-Way 3SB4.125/1:1BM1.00 4.125 1750 693 Base 1:1 1.00 in.
4303-0031 3 3-Way 3SB4.125/1:1BM25 4.125 1750 693 Base 1:1 25 mm
4303-0042 3 3-Way 3SB4.125/1:1BM.750 4.125 1750 693 Base 1:1 .750 in.
4303-0044 3 3-Way 3SB4.125/1:1BM20 4.125 1750 693 Base 1:1 20 mm
4303-0050 3 3 3SB5.00/2:1BM.750 5.00 2400 876 Base 2:1 .750 in.

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