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QD Bushing
CTS is a QD bushing manufacturer and supplier for OEM builds and maintenance spares. Stock and custom QD bushings for mounting sprockets, sheaves, and pulleys onto a shaft. Split, keyed, and made to the same dimensional standard as the Browning, Dodge, Martin, and TB Wood's QD Bushings already running in your plant.
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Browse QD Bushing Sizes
Send the type (JA, SH, SDS, SD, SK, SF, E, F, J, M, N, P, W, S) and the bore, and we will confirm stock and price the same working day. Most buyers arrive holding the type letter stamped on an existing hub. Pick yours below, or send us the letter and bore, and we will confirm the match before you order. Type not listed? Send us the part number, and we will check availability. A QD bushing, short for quick-disconnect bushing, is a split flanged bushing that mounts a sprocket, sheave, or pulley onto a shaft and comes off again in minutes. You do not pull the hub off the shaft: you remove the cap screws, thread them into the removal holes in the flange, and the bushing backs itself out of the hub. That is why QD bushings are the practical choice wherever components are changed on a maintenance schedule, or where a drive has to come apart in the field rather than in a workshop. Replacing a worn bushing? Send the stamped part number, and we will confirm the interchangeability before you buy. Popular QD bushing types and bores are held in stock, so replacement orders do not wait for a production run. Stock items carry no minimum order — one piece is fine. Sizes that are not on the shelf are machined to your drawing, sample, or shaft dimensions. Common types, letters, and bores are in stock for immediate dispatch, with no minimum order for stock items. Inch or metric bores, your keyway specification, and bushings for hubs already in service. Drawings and samples welcome. Read the part number from the bushing you are replacing, and we will match the QD bushing type, bore size, and keyway before you order.
QD Bushing — Quick-Disconnect Bushings
Browse QD Bushing Types
JA QD Bushing
SH QD Bushing
SDS QD Bushing
SD QD Bushing
SK QD Bushing
SF QD Bushing
E QD Bushing
F QD Bushing
J QD Bushing
M QD Bushing
N QD Bushing
P QD Bushing
W QD Bushing
S QD Bushing
What Is a QD Bushing?
In Stock and Made to Order
Three Ways We Supply QD Bushings
Stock bushings
Custom bushings
Replacement matching
QD bushings, JA to S type, in stock and made to order. Dimensionally interchangeable with Browning, Dodge, Martin, and TB Wood's QD bushings — same bolt circle, taper, and cap screws. No minimum order.
All dimensions are in inches. Cap screws, set screw size, wrench torque, and approximate weight are listed per type. Click a chart name below and that drawing appears in the panel on the left. Need a quote for one size? Send the type and bore → QD bushing installation and removal both use the cap screws that come with the bushing: no press, no puller, and no need to pull the hub off the shaft. Torque values per type are in the size table above. Ask us to check your installation → Send a drawing, a sample, or the shaft dimensions, and we will quote a bushing that fits the application. Custom work we handle regularly: Not sure which type you need? Trademarks: Browning®, Dodge®, Martin®, TB Wood's® and Taper-Lock® are trademarks of their respective owners. CTS is not affiliated with, authorized by, sponsored by, or endorsed by these companies. We use brand names and part numbers of other manufacturers only to identify the equipment our products are dimensionally interchangeable with. All other trademarks are the property of their respective owners. CTS QD bushings are 100% dimensionally interchangeable with the QD bushings supplied by Browning, Dodge, Martin, and TB Wood's. In the same type and bore size, you get the same QD bushing size, so our QD bushing replaces the branded bushing in your hub without modification and comes out again with the same cap screws. Send a Dodge QD bushing, Martin QD bushing, or Browning QD bushing part number, and we will provide a CTS equivalent QD bushing. Send the part number stamped on the old bushing or hub, and we will confirm the match before you order. Typical drives for the components our bushings mount. Mounting sprockets on drive shafts where the sprocket comes off again for wear replacement. Bushed sheaves for belt drives, fan drives, and line shaft equipment. Drives that are serviced in the field, where quick removal saves downtime. Impeller and rotor shafts on equipment with regular maintenance intervals. Field equipment where a spare bushing is carried and swapped on site. Replacing a worn or obsolete bushing on a machine that is still in service. CTS manufactures and supplies QD bushings for OEM builds, MRO spares, and distributor stock. Every batch is checked for bore, keyway, and taper fit before packing, and material certificates can be supplied on request. Bushings leave the factory export-packed with rust protection for sea and air freight. Looking for a specific certificate or documentation set with your order? Ask before ordering → QD stands for quick disconnect. The bushing is split and keyed, so it tightens onto the shaft and releases from the hub quickly using the same cap screws. The common QD range, from the small JA sizes through to the heavy S sizes. Tell us the type letter and the bore and we will confirm stock. Yes. They are made to the same dimensional standard. Confirm with the part number from your old bushing and we will match it before you order. Slide the bushing onto the shaft with the keyway aligned, set the hub on the bushing, then tighten the cap screws in the flange to the torque listed for that type. To remove it, move the same cap screws into the threaded removal holes and the bushing backs itself out of the hub. Both are split, keyed bushings that lock a hub onto a shaft. A QD bushing has a flange and is held by cap screws that pass through the flange into the hub; a taper lock bushing has no flange and is tightened by set screws. Send the part number from the machine and we will confirm which type fits.
QD Bushing Types & Sizes (JA to S)
Scroll the table sideways on a phone.
QD Bushing Type
Dimensions(in)
Bolt Circle (in)
Stock Bore Range(in)
Cap Screws Included
Set Screw Size
Wrench- Torque (in-Ibs)
Approx. Weight (Ibs)
A
B
D
E
F
G
L
Min.
Max.
No.
Thread
Length (in)
Standard Keyway
Shallow Keyway
No Keyway
JA
3/8
1.375
2
11/16
9/16
1/8
1-1/16
1-21/32
3/8
1
1-3/16
1-1/4
3
10-24
1
10-24
60
0.9
SH
7/16
1.871
2-11/16
7/8
13/16
3/16
1-5/16
2-1/4
1/2
1-3/8
1-5/8
1-11/16
3
1/4-20
1-3/8
1/4
108
1.0
SDS
1/2
2.187
3-3/16
7/8
3/4
3/16
1-3/8
2-11/16
1/2
1-11/16
1-15/16
2
3
1/4-20
1-3/8
1/4
108
1.0
SD
1/2
2.187
3-3/16
1-5/16
1-1/4
3/16
1-13/16
2-11/16
1/2
1-11/16
1-15/16
2
3
1/4-20
1-7/8
1/4
108
1.5
SK
9/16
2.812
3-7/8
1-3/8
1-1/4
3/16
1-15/16
3-5/16
1/2
2-1/8
2-1/2
2-5/8
3
5/16-18
2
5/16
180
2.0
SF
9/16
3.125
4-5/8
1-1/2
1-1/4
1/4
2-1/16
3-7/8
1/2
2-1/4
2-15/16
-
3
3/8-16
2
5/16
360
3.0
E
3/4
3.834
6
1-7/8
1-5/8
5/16
2-5/8
5
7/8
2-7/8
3-1/2
-
3
1/2-13
2-3/4
3/8
720
10.0
F
13/16
4.437
6-5/8
2-13/16
2-1/2
3/8
3-5/8
5-5/8
1
3-5/16
3-15/16
4
3
9/16-12
3-5/8
1/2
900
11.5
J
1
5.148
7-1/4
3-1/2
3-3/16
3/8
4-1/2
6-1/4
1-7/16
3-3/4
4-1/2
-
3
5/8-11
4-1/2
5/8
1,620
18.0
M
1-1/4
6.500
9
5-1/2
5-3/16
3/8
6-3/4
7-7/8
1-15/16
4-3/4
5-1/2
-
4
3/4-10
6-3/4
3/4
2,700
37.0
N
1-1/2
7.000
10
6-5/8
6-1/4
7/16
8-1/8
8-1/2
2-7/16
5
6
-
4
7/8-9
8-1/2
3/4
3,600
57.0
P
1-3/4
8.250
11-3/4
7-5/8
7-1/4
1/2
9-3/8
10
2-15/16
5-15/16
7
-
4
1-8
9-1/2
7/8
5,400
120.0
W
2
10.437
15
9-3/8
9
1/2
11-3/8
12-3/4
4
7-1/2
8-1/2
-
4
1-1/8-11.5
11-1/2
1
7,200
250.0
S
3-1/4
12.125
17-3/4
12-1/2
12
1/2
15-3/4
15
6
8-1/4
10
-
5
1-1/4-15.5
15-1/2
1-1/4
9,000
400.0
Downloadable size charts
How a QD Bushing Mounts
Custom QD Bushing
Send your dimensions and our engineers will name the closest standard item, or quote a custom one.
Interchangeable with Dodge, Martin, and Browning QD Bushing
Replacing an existing part?
Where QD Bushings Are Used
Chain sprockets
V-belt sheaves and pulleys
Conveyors and elevators
Pumps, mixers and fans
Agricultural machinery
Retrofits and replacements
Quality and Inspection
Frequently Asked Questions
What does QD stand for?
Which QD bushing types do you supply?
Are CTS QD bushings 100% interchangeable with Dodge, Martin, or TB Wood's?
How do I install or remove a QD bushing?
What is the difference between a QD bushing and a taper lock bushing?
Ask CTS？
Having trouble finding the product you need? Send us an email with your question or message, and we'll quickly respond with tailored solutions. We're eager to hear from you! Expect top-notch precision, reliability, efficiency, and performance. Let's redefine excellence together.
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