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SB Bevel Gearbox

SB Bevel Gearbox

  • Model:SB
  • Specification:220~6800N.m
  • Temperature:-20~80℃
  • Medium:
  • Pressure:速比(Gear Ratio)2.3:1~7.1:1
  • Connection method:
  • Driving method:Worm gear
  • Material:Cast Iron,Ductile Iron
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SB Bevel GearboxOverview

The SB bevel gear box-1 stair is a general-purpose right-angle power transmission terminal utilizing a precision Gleason spiral bevel gear set. It is designed for industrial applications requiring moderate reduction ratios, a wide output torque range, and 90° direction change – such as conveyors, mixers, hoisting equipment, mining auxiliary drives, paper machinery, and marine auxiliary systems. The housing is made of high-strength cast iron or ductile iron. The internal high-capacity spiral bevel gear pair is manufactured from 20CrMnTi steel, case-hardened to HRC58-62, ground to grade 5-6 accuracy, and shot-peened. Through optimized tooth geometry and ratio selection, the SB achieves total reduction ratios from 2.3:1 to 7.1:1 and output torque ratings from 220 N·m to 6,800 N·m, providing reliable long-term operation under light to medium-heavy loads. The unit supports various mounting orientations and shaft arrangements, accommodating standard motors, servo motors, hydraulic motors, or diesel engines – realizing a true 4-in-1 general-purpose power integration of “moderate reduction, wide torque range, high reliability, and right-angle turning”.

Product Image of SB Bevel Gearbox

SB Bevel GearboxCharacteristic


1. High-Capacity Spiral Bevel Gear Set : Gleason-type equal-height teeth. Material: 20CrMnTi, case-hardened to HRC58-62, ground to grade 5-6 accuracy with computer-optimized contact patterns. Load capacity is more than 40% higher than straight bevel gears.

2. Wide Ratio Range & Broad Torque Coverage : Reduction ratio covers 2.3:1 to 7.1:1. Rated output torque from 220 N·m to 6,800 N·m – suitable for various equipment from light-duty conveyors to medium-heavy mixers and hoists.

3. High Efficiency & Extended Fatigue Life : Transmission efficiency ≥94% (depending on ratio and lubrication). Gear teeth are shot-peened and specially phosphated, increasing contact fatigue life by more than 100% with a design life of at least 20,000 hours.

4. Multiple Shaft Arrangements & Mounting Styles : Input and output shafts at 90°. Supports M1 to M6 mounting orientations to fit complex spatial layouts. Available in single-input/single-output or single-input/dual-output configurations.

5. Heavy-Duty Bearings & Reinforced Housing : Tapered roller or spherical roller bearings are selected according to torque rating. The housing features optimized wall thickness and ribs, providing excellent torsional stiffness and impact resistance.

6. Reliable Sealing & Lubrication : Standard double-lipped FKM oil seals with labyrinth dust protection achieve IP65. Forced lubrication station is optional for high-torque models. Pre-filled with synthetic extreme-pressure gear oil (ISO VG220 to 460, depending on torque rating).

SB Bevel Gearboxstructure principle

Structural Drawing of SB Bevel Gearbox

List of Component Names and Materials


No.Material
1ASTM A193 B7
2ASTM A216 WCB
3NBR
4ASTM A193 B7
5ASTM A216 WCB
6Non Asbestos
7ASTM A295
8ASTM A148
9ASTM A576-1045
10ASTM A295
11ASTM A216 WCB
12ASTM A307-B-Zn
13Galvanized Tube
14ASTM A307-B-Zn
15Non Asbestos
16ASTM A295
17ASTM A53
18ASTM A576-1045
19ASTM A295
20CM 65
21ASTM A36
22ASTM A216 WCB
23ASTM A193 B7
24ASTM A53
25ASTM A36
26ASTM A193 B7

Material Specification for Turbine Unit

CategoryComponentCast Iron StandardHigh TemperatureCast Steel StandardLow TemperatureUltra-low Temp & Corrosive
Worm GearboxTemp: -20~80℃Temp: -20~180℃Temp: -20~80℃Temp: -40~80℃Temp: -60~80℃
Worm Gear HousingGB/T 1348 QT450-10GB/T 1348 QT450-10ASTM A216 WCBASTM A352 LCBASTM A352 LCC
Worm Gear CoverGB/T 1348 QT450-10GB/T 1348 QT450-10ASTM A216 WCBASTM A352 LCBASTM A352 LCC
Base PlateGB/T 1348 QT450-10GB/T 1348 QT450-10ASTM A216 WCBASTM A352 LCBASTM A352 LCC
Worm WheelGB/T 1348 QT600-3GB/T 1348 QT600-3GB/T 1348 QT600-3GB/T 1348 QT600-3GB/T 1348 QT600-3
Worm ShaftGB/T 3077 20CrMnTiGB/T 3077 20CrMnTiGB/T 3077 20CrMnTiGB/T 3077 20CrMnTiGB/T 3077 20CrMnTi
Shaft SleeveComposite MaterialCopper AlloyComposite MaterialComposite MaterialComposite Material
Carbon Steel + PTFECarbon Steel + PTFECarbon Steel + PTFECarbon Steel + PTFE
BearingCommercial Bearing SteelCommercial Bearing SteelCommercial Bearing SteelCommercial Bearing SteelCommercial Bearing Steel
Indicator NeedleA3 Stamping + Plastic SprayingA3 Stamping + Plastic SprayingA3 Stamping + Plastic SprayingA3 Stamping + Plastic SprayingA3 Stamping + Plastic Spraying
Adjusting ScrewClass 8.8Class 8.8Class 8.8Class 8.8Class 8.8
SealsNBR 70 -30~100℃FKM 70 -20~200℃NBR 70 -30~100℃VMQ 60 -60~200℃VMQ 60 -60~200℃
GreaseLithium-based GreaseHigh-temp GreaseLithium-based GreaseLow/High-temp GreaseAviation Grease
-20~120℃-30~200℃-20~120℃-50~180-70~180℃
BoltClass 8.8Class 8.8Class 8.8Class 8.8Class 8.8
GearsMulti-stage HousingGB/T 1348 QT450-10GB/T 1348 QT450-10ASTM A216 WCBASTM A352 LCBASTM A352 LCB
Multi-stage CoverGB/T 1348 QT450-10GB/T 1348 QT450-10ASTM A216 WCBASTM A352 LCBASTM A352 LCB
Gear DiscGB/T 699 45GB/T 699 45GB/T 3077 40CrGB/T 3077 40CrGB/T 3077 40Cr
Gear ShaftGB/T 699 45GB/T 3077 40CrGB/T 3077 40CrGB/T 3077 40CrGB/T 3077 40Cr
Worm ShaftGB/T 1220 2Cr13GB/T 1220 2Cr13GB/T 1220 2Cr13GB/T 1220 2Cr13GB/T 1220 2Cr13


SB Bevel Gearboxtechnology parameter

Technical Data Sheet

ModelGear RatioMax Stem Diameter (mm)Max Thrust Capacity (KN)Max Thrust Capacity (Kgf)Max Output Torque (N.m)Max Output Torque (Kgf.m)M.A. (±10%)Weight (Kg)
SB-VS102.3:120606122220222.112
SB-VS202.35:122909184350362.115
SB-V03:13213513776550562.720
SB-V13.6:13818018367900923.325
SB-V24.2:1482502551015001533.840
SB-V34.2:1522802857120002043.855
SB-V355:1703703775528002864.595
SB-V56.3:1906506632745004595.6170
SB-V67.1:11108808979668006946.2235


SB Bevel Gearboxstandard size

Standard requirements for external dimensions

Design Standard: ISO 5211 Technical Specification

Protection Class: IP65

Flange Standard: ISO 5210

Outline Dimensions with Electric Actuator Connection

Outline Dimensions with Locking Device

Outline Drawing of SB Bevel Gearbox

Outline dimension table(Unit: mm)

MODELTYPEFLANGE SIZEφD1P.C.D D2P.C.D N-H-DPφD3HH1H2H3L2LL1φPDKEYHAND WHEEL φM
SB-VS10AF-10701024-M10-151253426611020012134268X7300
SB-VS20AF-12851254-M12-181503507512321013534268X7300
SB-V0AF-141001404-M16-241754607512124016034288X7400
SB-V1AF-161301654-M20-302105658313726518234288X7450
SB-V2B(F-20)1402058-M16-2425056597160283203403210X8500
SB-V3BF-252002548-M16-2430058095170310225403210X8600
SB-V35BF-302302988-M20-35350595135210380295503210X8650
SB-V5BF-352603568-M30-454155130170270440355553810X8700
SB-V6BF-403004068-M36-54475816521033556536555502-16X10800