Shop RULAND

Coupling Hub, Oldham Set Screw, 1/2in.

  • Mfr # OST21-8-A

  • Zoro # G7925434

product price: 
$
23.59
/ea

Key Features

Shaft Locking Type - Couplings
1 Piece Set Screw
System of Measurement
Inch
Outside Dia.
1.313 in
With Keyway / Without Keyway
Without Keyway
Finish
Black Anodized
See all product information
Unlock 30-day payment terms
Unlock 30-day payment terms
Business customers can apply for Net 30—no fees, no interest, fast approval. Terms apply.
Create Account
Get 10% off your order
Get 10% off your order
Sign up for our email list and receive your promo code via email.

Specifications

Details

MFR #
OST21-8-A
Zoro #
G7925434
UPC #
634529062166
Country of Origin
United States
Shaft Locking Type - Couplings
1 Piece Set Screw
Item
Motion Control Coupling Hub
System of Measurement
Inch
With Keyway / Without Keyway
Without Keyway
Finish
Black Anodized
Max. Bore (In.)
0.5 in
Material - Hubs
Aluminum
Max. RPM
4,500 RPM
Max. Temp. Range (F)
Acetal Disk 150 Degrees F, Nylon Disk 130 Degrees F
Setscrew Location
2 (90 Degrees )
Screw Type
Set Screw
Item - Oldham Coupling Hubs
Oldham Coupling Hub
Standards
Conflict Minerals Compliant, ISO 9001:2015, REACH Compliant, RoHS3 Compliant
Screw Seating Torque
19.5 in-lb
Screw Material
Alloy Steel
Bore Tolerance
+0.001 in / -0.000 in
Over-Standard Parallel Misalignment
0.131 in
Shaft Locking Type
Set Screw
Angular Misalignment
0.5 Degrees
Zero Backlash
Yes
Bore Type
Round
Hub Material Grade
2024
Set Screw Location
90 Degrees Apart
Features
Balanced Design
Full Bearing Support Required
Yes
Axial Motion
0.006 in
Maximum Speed
4,500 RPM
Maximum Operating Temperature
200 Degrees F
Compatible Center Element Manufacturer Part Number
OD21/33-AT, OD21/33-NL, OD21/33-PEK
Number of Locking Screws
2
Shaft Tolerance
+0.000 mm / -0.013 mm
Hub Material
Aluminum
Included Screws
(2) Set Screw
Screw Material Finish
Black Oxide
Hub Material Finish
Black Anodized
Weight
0.076 lb
Parallel Misalignment
0.008 in
For Misalignment Type
Angular, Axial, Parallel
Minimum Operating Temperature
-10 Degrees F
Mechanical Fuse Break
Yes

Description

Motion Control Coupling Hub, Angular Misalignment 0.5 Degrees , Axial Motion 0.006 in, Coupling Size OST21, Outside Diameter 1.313 in, Over-Standard Parallel Misalignment 0.131 in, Parallel Misalignment 0.008 in, Coupling Overall Length 1.875 in, Hub Material Aluminum, Length through Bore 0.59 in, System of Measurement Inch, Bore Diameter 1/2 in, Maximum Speed 4,500 RPM, Bore Type Round, Shaft Locking Type Set Screw, Keyway Depth Not Applicable, Keyway Width Not Applicable

Ratings & reviews

Explore more products