Gears - Bevel - Module 4 - Steel

Gears -> Bevel -> Module 4 -> Steel

There are 2 products in the sub-categories of Gears - Bevel - Module 4 - Steel. Browse the Gears - Bevel - Module 4 - Steel products table.

Category Details

A selection of Steel Module 4 Bevel Gears. For 90 Degree angle power transfer. Ratios exceeding 1 to 1.

  • An expanded range may be available on special order. Please enquire.
  • 20 Degree Pressure Angle.
  • Do not mix gears from different sets.
  • See Gears - Mitre for 1 to 1 ratios.

Small Parts & Bearings

Additional resources:


A more comprehensive listing may be found in the Gears - Bevel - Module 4 - Steel category on the MBA Minibearings main store.
Ratio Comment Matching Gear to Complete Set Teeth Bore (d) Indicative
Image
Ratio
2 to 1

Comment
Large Gear Only

Matching Gear to Complete Set
GB-21B-M4-20-200-C (20 Tooth Gear)

Teeth
40
No.
Bore (d)
20.00
mm
H7
Bevel Gears - Ratio 2 to 1 Large Gear Only - GB-21B-M4-20-200-C - 20 Tooth Gear - Module 4 - Steel Gear
Material: Steel    Pitch Diameter (PD): 160.00 mm    Face Width (S): 28.00 mm    Overall Width (L): 53.92 mm    Hub Diameter (D1): 70.00 mm    Mounting Distance (A): 80.00 mm    Hub Length (l1): 28.00 mm   
Part Number: GB-21A-M4-40-200-C (Each)
Bevel Gears - Ratio 2 to 1 Large Gear Only - GB-21B-M4-20-200-C - 20 Tooth Gear - Module 4 - Steel Gear
Out of Stock | Backorder Now | Orders can be expected around Fri, Jan 09, 2026
$511.32 AUD
$511.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Ratio Comment Matching Gear to Complete Set Teeth Indicative
Image
Ratio
2 to 1

Comment
Large Gear Only

Matching Gear to Complete Set
GB-21B-M4-20-200-C (20 Tooth Gear)

Teeth
40
No.
Bevel Gears - Ratio 2 to 1 Large Gear Only - GB-21B-M4-20-200-C - 20 Tooth Gear - Module 4 - Steel Gear
Material: Steel    Bore (d): 20.00 mm H7   Pitch Diameter (PD): 160.00 mm    Face Width (S): 28.00 mm    Overall Width (L): 53.92 mm    Hub Diameter (D1): 70.00 mm    Mounting Distance (A): 80.00 mm    Hub Length (l1): 28.00 mm   
Part Number: GB-21A-M4-40-200-C (Each)
Bevel Gears - Ratio 2 to 1 Large Gear Only - GB-21B-M4-20-200-C - 20 Tooth Gear - Module 4 - Steel Gear
Out of Stock | Backorder Now | Orders can be expected around Fri, Jan 09, 2026
$511.32 AUD
$511.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Ratio
2 to 1

Comment
Small Gear Only

Matching Gear to Complete Set
GB-21B-M4-40-200-C (40 Tooth Gear)

Teeth
20
No.
Bore (d)
20.00
mm
H7
Bevel Gears - Ratio 2 to 1 Small Gear Only - GB-21B-M4-40-200-C - 40 Tooth Gear - Module 4 - Steel Gear
Material: Steel    Pitch Diameter (PD): 80.00 mm    Face Width (S): 28.00 mm    Overall Width (L): 66.59 mm    Hub Diameter (D1): 60.00 mm    Mounting Distance (A): 120.00 mm    Hub Length (l1): 35.00 mm   
Part Number: GB-21A-M4-20-200-C (Each)
Bevel Gears - Ratio 2 to 1 Small Gear Only - GB-21B-M4-40-200-C - 40 Tooth Gear - Module 4 - Steel Gear
Out of Stock | Backorder Now | Orders can be expected around Fri, Jan 09, 2026
$222.41 AUD
$222.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Ratio
2 to 1

Comment
Small Gear Only

Matching Gear to Complete Set
GB-21B-M4-40-200-C (40 Tooth Gear)

Teeth
20
No.
Bevel Gears - Ratio 2 to 1 Small Gear Only - GB-21B-M4-40-200-C - 40 Tooth Gear - Module 4 - Steel Gear
Material: Steel    Bore (d): 20.00 mm H7   Pitch Diameter (PD): 80.00 mm    Face Width (S): 28.00 mm    Overall Width (L): 66.59 mm    Hub Diameter (D1): 60.00 mm    Mounting Distance (A): 120.00 mm    Hub Length (l1): 35.00 mm   
Part Number: GB-21A-M4-20-200-C (Each)
Bevel Gears - Ratio 2 to 1 Small Gear Only - GB-21B-M4-40-200-C - 40 Tooth Gear - Module 4 - Steel Gear
Out of Stock | Backorder Now | Orders can be expected around Fri, Jan 09, 2026
$222.41 AUD
$222.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.