Image for Illustration purposes only. Actual product may vary

Boston Gear 30223158 F621B-4-B7 helical speed reducer with 4:1 ratio and 140TC input flange. Cast iron housing for general industrial power transmission applications requiring right-angle helical gearing.

Name: Boston Gear 30223158 F621B-4-B7 helical speed reducer with 4:1 ratio and 140TC input flange. Cast iron housing for general industrial power transmissi
Brand: Boston Gear
Price: 3359.89 USD
Availability: InStock
Rating: 5.0 (4 reviews)

MODEL F621B-4-B7

BRAND

Boston Gear

SKU

41102

WEIGHT

30.001 lb

UOM

each

Contact supplier for technical support on: 800-626-2120

$3,359.89 Each

Prices are subject to change

FREE SHIPPING ON ORDERS OVER $100

Select Quantity

GET A QUOTE

Typically Ships in: 1 day

Returnable: See conditions

Ratios from 1.6

1 to 160:1 (23 increments)

Standards

ISO 9001

Product Features

A selection comprising seven common sizes permits use in many different applications.
The Standard NEMA C-face input flange increases adaptability, allowing the 600 Series to be mounted to any industry standard motor.
Single, double, and triple reduction models provide a wide array of ratios for increased versatility.

Base-mount and output-flange-mount models further increase versatility.
- The 600 Series is assembled in Boston Gear's ISO 9001-certified facility to ensure precise quality control.
- Washdown-duty models, which are well-suited to wet and corrosive environments, add flexibility.

Data Sheet

SKU: 36240

Finding the right parts.

MRO made it quick and easy.

SKU: 35645

Change gears

Found what I needed, fair price,...fast delivery....All Good!! Good job MRO Supply!

SKU: 564304

Good quality, fast delivery.

Easy ordering, don't have a minimum quantity, and fast delivery. Very satisfied with order.

SKU: 34774

Quality

very high quality. using these gears in a model 9 cylinder radial engine with a 1" bore. about 8 h.p. , for oil pump a scavenge pump timing gears and distributor . very good quality gears.

When will I be charged for my order?

Do you provide credit terms?

Can I get a discounted price? I am a reseller / government entity.

What is the return/warranty policy?

Can it be shipped today?

Does “Usually ships in 24 hours” mean it’s in stock?

Read full FAQ

Recently Viewed

#682932

Bando 450DH300G Synchro-Link H pitch synchronous belt with 4.50" pitch circumference and 0.300" face width. Trapezoidal tooth profile with fiberglass tensile cord. Neoprene compound rated for continuous duty power transmission applications.

Brand	Bando
Model	450DH300G

$498.42 Each

Free Shipping orders over $100

#6431143

SMC KQ2L06-99A KQ2 male elbow one-touch fitting for 6mm tube OD. Features a special profile seal for reliable sealing from low vacuum to 1 MPa. The release collar allows easy tube disconnection. Suitable for pneumatic systems requiring a compact 90-degree connection.

Brand	SMC
Model	KQ2L06-99A

$2.13 Each

Free shipping

#6444655

SMC VVQ100-5-2 solenoid valve manifold replacement parts for VQ series valves. VQ valves are ideal for high speed, frequent operation, stable response time and long service life. Innovative mounting allows valve changes without disassembling the manifold. Built-in one-touch fittings save piping time. Fluid air/inert gas.

Brand	SMC
Model	VVQ100-5-2

$2.07 Each

Free shipping

#5998221

Winsmith S26MPSS51240EK S26MPSS SE Maximizer Plus stainless steel worm gear speed reducer with 2.625" center distance, 30:1 ratio, DLR shaft arrangement, 56C motor frame, and 1.50" hollow bore. This single-reduction unit features a stainless output shaft, WashTite motor gasket, and washdown-rated construction for food processing and corrosive environments.

Brand	Winsmith
Model	S26MPSS51240EK

$3,711.52 Each

Free Shipping orders over $100

#682840

Bando 350DH150G Synchro-Link H pitch synchronous belt with 3.50" pitch circumference and 0.150" face width. Trapezoidal tooth profile with fiberglass tensile cord. Neoprene compound rated for continuous duty power transmission applications.

Brand	Bando
Model	350DH150G

$211.19 Each

Free Shipping orders over $100

#682898

Bando 410DH100G Synchro-Link H pitch synchronous belt with 4.10" pitch circumference and 0.100" face width. Trapezoidal tooth profile with fiberglass tensile cord. Neoprene compound rated for continuous duty power transmission applications.

Brand	Bando
Model	410DH100G

$162.58 Each

Free Shipping orders over $100

#682982

Bando 540DH300G Synchro-Link DH pitch synchronous belt with 5.40" pitch circumference and 0.300" face width. Trapezoidal tooth profile with fiberglass tensile cord. Neoprene compound rated for continuous duty power transmission applications.

Brand	Bando
Model	540DH300G

$577.97 Each

Free Shipping orders over $100

#5998176

Winsmith S26MPSS5Y240D4 S26MPSS SE Maximizer Plus stainless steel worm gear speed reducer with 2.625" center distance, 25:1 ratio, DLR shaft arrangement, 56C input flange, and 1.50" hollow bore. This single-reduction unit features a stainless output shaft, WashTite motor gasket, and washdown-rated construction for food processing and corrosive environments.

Brand	Winsmith
Model	S26MPSS5Y240D4

$3,754.24 Each

Free Shipping orders over $100

Reviews

SKU: 36240

Finding the right parts.

MRO made it quick and easy.

SKU: 35645

Change gears

Found what I needed, fair price,...fast delivery....All Good!! Good job MRO Supply!

SKU: 564304

Good quality, fast delivery.

Easy ordering, don't have a minimum quantity, and fast delivery. Very satisfied with order.

SKU: 34774

Quality

very high quality. using these gears in a model 9 cylinder radial engine with a 1" bore. about 8 h.p. , for oil pump a scavenge pump timing gears and distributor . very good quality gears.

Boston Gear 30223158 F621B-4-B7 helical speed reducer with 4:1 ratio and 140TC input flange. Cast iron housing for general industrial power transmission applications requiring right-angle helical gearing.

Product Features

Return policy