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  11. Coupling Hub, Oldham Set Screw, 3/8in.
Ruland Coupling Hub, Oldham Set Screw, 3/8in. OST21-6-A - main

Coupling Hub, Oldham Set Screw, 3/8in.

  • Mfr # OST21-6-A

  • Zoro # G7869985

product price: $24.19
/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
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Specifications

Product Information

MFR #
OST21-6-A
Zoro #
G7869985
UPC #
634529062159
Country of Origin
United States

Dimensions

Bore Dia.
3/8 in
Outside Dia.
1.313 in
Size
OST21
Clearance Dia. (In.)
1.313 in
Length through Bore (mm)
15 mm
Outside Dia. (In.)
1.313
Outside Dia. (mm)
33.30
Screw Size (mm)
M5
Overall Length (mm)
15 mm
Overall Length (In.)
0.59 in
Hub Dia.
1-5/16"
Length through Bore (In.)
0.59 in
Assembled Coupling Length
1.88 in
Clearance Dia. (mm)
33.3 mm
Length through Bore
0.59 in
Coupling Overall Length
1.875 in
Outside Diameter
1.313 in
Screw Thread Size
M4
Bore Diameter
3/8 in
Coupling Size
OST21

Details

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.)
0.375 in
Style
Oldham Set Screw
Max. Temp. Range (F)
Acetal Disk 150 Degrees F, Nylon Disk 130 Degrees F
Screw Type
Set Screw
Max. RPM
4,500 RPM
Setscrew Location
2 (90 Degrees )
Material - Hubs
Aluminum
Material
Aluminum
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
Included Screws
(2) Set Screw
Mechanical Fuse Break
Yes
Screw Material Finish
Black Oxide
Set Screw Location
90 Degrees Apart
Shaft Locking Type
Set Screw
For Misalignment Type
Angular, Axial, Parallel
Weight
0.081 lb
Axial Motion
0.006 in
Hub Material Grade
2024
Full Bearing Support Required
Yes
Parallel Misalignment
0.008 in
Bore Type
Round
Maximum Operating Temperature
200 Degrees F
Over-Standard Parallel Misalignment
0.131 in
Features
Balanced Design
Zero Backlash
Yes
Hub Material Finish
Black Anodized
Shaft Tolerance
+0.000 mm / -0.013 mm
Angular Misalignment
0.5 Degrees
Number of Locking Screws
2
Minimum Operating Temperature
-10 Degrees F
Compatible Center Element Manufacturer Part Number
OD21/33-AT, OD21/33-NL, OD21/33-PEK
Maximum Speed
4,500 RPM
Hub Material
Aluminum

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 3/8 in, Maximum Speed 4,500 RPM, Bore Type Round, Shaft Locking Type Set Screw, Keyway Depth Not Applicable, Keyway Width Not Applicable

Restrictions

WARNING: Cancer and Reproductive Harm For more information go to www.P65Warnings.ca.gov

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