Image for Illustration purposes only. Actual product may vary

Martin 4 8V 2120 J is a 4-groove, 8V-section Hi-Cap wedge V-belt sheave with 212.0" pitch diameter, cast iron construction, and J-type Quick Disconnect bushing for high-torque power transmission applications. QD bushings are industry-interchangeable with

Name: Martin 4 8V 2120 J is a 4-groove, 8V-section Hi-Cap wedge V-belt sheave with 212.0" pitch diameter, cast iron construction, and J-type Quick Disconnec
Brand: Martin Sprocket
Price: 1568.91 USD
Availability: InStock
Rating: 5.0 (4 reviews)

MODEL 4 8V 2120 J

BRAND

Martin Sprocket

SKU

255129

WEIGHT

154.000 lb

UOM

each

Contact supplier for technical support on: 323-728-8117

$1,568.91 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

Material

Cast Iron

Outside Dia

21.000"

Material	Cast Iron	Outside Diameter	21.200 in.
Number Of Grooves	4	Bushing Min Bore Size	1.250 in.
Belt Cross Section	8V	Bushing Max Bore Size	4.500 in.
Bushing Style	QD	Face Width	4.875 in.
Bushing Part Number	J	Sheave Construction	Arm/Spoke
Pitch Diameter	21.000 in.
Storage Dimension Length	21.000 in.	Weight	154.00 lbs.
Storage Dimension Width	21.000 in.	Packaging	No
Storage Dimension Height	4.875 in.

SKU: 251099

Spur gear

Our Yellow Karcher "Duckee" steers once more. The spur gear works as advertised!!!

SKU: 250148

Martin flex sleeve

Great inventory easy to use website,had exactly what I needed,up and running,would use them again without a doubt, thank you!

SKU: 251157

21 tooth 12 dp spur gear

The 21 tooth 12 DP gear I bought arrived very quickly. It was exactly what I needed to fix my RV slide out. I had to machine it to fit, but I knew that when I ordered it. VERY SATISFIED!!!

SKU: 251489

High quality

strong material

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

Alternatives Products from another supplier. Note, it may not be identical in style or function to original item

#135111

Dodge 455425 4/8V21.2--J is a 4-groove 8V narrow wedge sheave with a 21.2" outside diameter (538.48 mm). It features a Quick Disconnect (QD) Type J bushing system for fast mounting and dismounting on driven shafts, designed for heavy-duty industrial

Brand

Dodge

Model

455425

Add to cart to see price

Free Shipping orders over $100

#346254

TB Woods 8V2124 Ultra-V sheave with 4 grooves, 21.2" outside diameter, and 8V belt section. Cast-iron construction with J-series QD bushing for quick-detachable mounting. Balanced for industrial drives up to 1180 RPM.

Brand

TB Woods

Model

8V2124

$1,711.20 Each

Free Shipping orders over $100

#2287415

4-groove cast iron 8V-section multiple sheave with a 21.2-inch pitch diameter and a J-series Q-D bushed bore. Cast iron construction with precision-machined grooves and statically balanced for low vibration. Used in fan drives, blower drives, pump drives, and general HVAC and industrial belt drives. Genuine Browning sheave from Regal Rexnord.

Brand

Browning

Model

1058783

$2,566.18 Each

Free Shipping orders over $100

Recently Viewed

#5104577

Timken LSE311BRHSATL is a split cylindrical roller bearing housed unit assembly. This heavy-duty mounted bearing features a split housing design for simplified installation and maintenance on industrial shafts. The cylindrical roller bearing insert provides high radial load capacity for applications such as gear reducers, industrial fans, and conveyor systems. The unit is designed for reliable performance in demanding environments.

Brand	Timken
Model	LSE311BRHSATL

$3,723.53 Each

Free Shipping orders over $100

#5106935

Timken LSE715BRHSAFQKPS is a split cylindrical roller bearing housed unit assembly, configured as a four-bolt pillow block. This heavy-duty mounted unit features a split housing design for simplified installation and maintenance on industrial shafts. It is engineered for high radial load capacity in applications such as gear reducers, industrial fans, and conveyor systems where rigid shaft support is required.

Brand	Timken
Model	LSE715BRHSAFQKPS

$24,232.63 Each

Free Shipping orders over $100

#1989355

Jason Industrial SPZ1200 metric cogged V-belt, SPZ section with 9.7mm top width and 8mm thickness. Designed for compact high-speed drives requiring efficient power transmission and flexibility.

Brand	Jason Industrial
Model	SPZ1200

$15.45 Each

Free shipping

#322076

SKF 23160 CAC/W33 is a 300mm bore spherical roller bearing with a machined brass cage (CA) and W33 annular lube groove with three lubrication holes. Designed for heavy radial and moderate axial loads in industrial gearboxes, mining equipment, and paper mill rolls.

Brand	SKF Bearing
Model	23160 CAC/W33

$11,605.51 Each

Free Shipping orders over $100

#2225547

Hub City 0230-04896 PowerCube 25:1 single-reduction worm gear reducer with cast iron housing. Features a 0.875" input diameter, 1.250" hollow bore output, and 56C C-face quill input for direct motor mounting.

Brand	HubCity
Model	0230-04896

Call for pricing

#2132245

Stearns 1-087-031-00-BBF is a 87,000 Series self-adjusting disc brake delivering 25 lb-ft torque at 115V 60Hz. Features NEMA 182TC-256TC frame compatibility, IP23/NEMA 2 enclosure, and 5/8" hub bore for reliable motor braking.

Brand	Stearns
Model	108703100BBF

$825.98 Each

Free Shipping orders over $100

#5704572

Allen-Bradley 20AE6P1A0AYNNNC0 is a PowerFlex 70 AC drive, rated for 6.1A continuous output, 480V 3-phase input, and 3HP motor control. This Bulletin 20A drive features V/Hz and sensorless vector control modes, an internal brake transistor, and an integrated EMC filter. It is designed for variable speed control of AC motors in industrial applications.

Brand	Allen Bradley
Model	20AE6P1A0AYNNNC0

$5,005.00 Each

#1989609

Jason Industrial XPZ1560 metric cogged V-belt features an XPZ section with a 1560 mm outside length. The cogged design provides improved flexibility and reduced bending resistance for compact drive systems. Constructed with chloroprene rubber and polyester tension cord for reliable power transmission in industrial applications.

Brand	Jason Industrial
Model	XPZ1560

$24.29 Each

Free shipping

Reviews

SKU: 251099

Spur gear

Our Yellow Karcher "Duckee" steers once more. The spur gear works as advertised!!!

SKU: 250148

Martin flex sleeve

Great inventory easy to use website,had exactly what I needed,up and running,would use them again without a doubt, thank you!

SKU: 251157

21 tooth 12 dp spur gear

The 21 tooth 12 DP gear I bought arrived very quickly. It was exactly what I needed to fix my RV slide out. I had to machine it to fit, but I knew that when I ordered it. VERY SATISFIED!!!

SKU: 251489

High quality

strong material

Martin 4 8V 2120 J is a 4-groove, 8V-section Hi-Cap wedge V-belt sheave with 212.0" pitch diameter, cast iron construction, and J-type Quick Disconnect bushing for high-torque power transmission applications. QD bushings are industry-interchangeable with

Return policy