We are closed from Monday, Dec 23rd and will reopen on Monday, Jan 6th. Any orders received during this time will be processed in the New Year.
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Get it by Tuesday, Dec 31
£19.99 Flat Shipping + VAT £19.99 flat shipping is applicable on orders with an aggregate weight less than 10kg. Orders exceeding 10kg will be charged default shipping rates
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Step 1 Add the items into your cart or submit a Purchase order
Step 2 Checkout, select NET30 payment (provide company registration and VAT number)
Step 3 Delivery via TNT or Royal Mail and receive invoice for payment in 30-days
Step 4 Make payment via BACS to our factoring partner,
| Item | Motion Control Coupling Hub |
| Bore Dia. | 5/8" |
| Clearance Dia. | 33.3mm |
| Finish | Black Anodized |
| Hub Dia. | 1-5/16" |
| Keyway | 3/16" |
| Length Through Bore | 15mm |
| Material | Aluminum |
| Max. Bore | 0.625" |
| Max. Rpm | 4500 |
| Max. Temp. Range (f) | Acetal Disk 150 Degrees F, Nylon Disk 130 Degrees F |
| Outside Dia. | 33.30mm |
| Overall Length | 15mm |
| Screw Size | M4 mm |
| Screw Type | Set Screw |
| Setscrew Location | 2 (90 deg.) |
| Size | OSC21 |
| Style | Oldham Set with Keyway |
| Ship weight (kg) | 0.03 |
| Ship height (cm) | 3.56 |
| Ship length (cm) | 4.78 |
| Ship width (cm) | 10.16 |
| HS code | 8483608000 |
| Country of Origin | US |
| Model | Bore Dia. | Clearance Dia. | Hub Dia. | Keyway | Length Through Bore | Max. Bore | Outside Dia. | Overall Length | Price | |
|---|---|---|---|---|---|---|---|---|---|---|
| OSC16-6-A | 3/8" | 25.4mm | 1" | - | 11.9mm | 0.375" | 25.4mm | 9.9mm | £40.74 | |
| OSC16-8-A | 1/2" | 25.4mm | 1" | 1/8" | 11.9mm | 0.5" | 25.4mm | 9.9mm | £40.74 | |
| OSC21-6-A | 3/8" | 33.3mm | 1-5/16" | 3/32" | 15mm | 0.375" | 33.30mm | 15mm | £56.72 | |
| OSC21-8-A | 1/2" | 33.3mm | 1-5/16" | 1/8" | 15mm | 0.5" | 33.30mm | 15mm | £56.72 | |
| OSC26-10-A | 5/8" | 41.3mm | 1.625" | 3/16" | 18mm | 0.625" | 41.30mm | 18mm | £65.54 | |
| OSC26-12-A | 3/4" | 41.3mm | 1.625" | 3/16" | 18mm | 0.75" | 41.30mm | 18mm | £68.05 | |
| OSC26-6-A | 3/8" | 41.3mm | 1.625" | 3/32" | 18mm | 0.375" | 41.30mm | 18mm | £68.05 |
Contact your account manager right away to get personal advice.
We're available Monday through Friday, from 07:30 until 17:00.
Trade pricing is available for 
Order Value should be £500+