Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Cast Iron Double Groove Pulley 100mm shaft size 24mmThere are 2 locking screws, which will make sure the pulley will be fixed tightly. Free postage for most metro cities. excluding Northern territory and regional remote area of Western Australia. Customers from Northern territory and regional remote area of Western Australia please contact us for postage. For TAS, QLD, SA and NSW regional remote areas, if the courier companies we use do not provide door to door service, they will deliver the parcel to
There are 2 locking screws, which will make sure the pulley will be fixed tightly.Free postage for most metro cities. excluding Northern territory and regional/remote area of Western Australia. Customers from Northern territory and regional/remote area of Western Australia please contact us for postage. For TAS, QLD, SA and NSW regional/remote areas, if the courier companies we use do not provide door-to-door service, they will deliver the parcel to the nearest agent/depot for your collection. Situations like those are beyond our control, hope you understand.
PAYMENT POLICY
- PayPal
- PayPal account email address (to receive payments): [email protected]
- Bank Deposit
- buyers will see the bank account number in checkout
- Pay on pick up at our counter
Shipping and Handing term and condition:
1. Our orders are usually shipped within 24 business hours after payment received unless there are problems with the order. If this is the case we will contact you via your eBay email address or telephone number.
2. Orders are normally processed each working day not including weekends. Usually if your payment is received after 3:00 P.M. or on the weekend, it is processed on the next business day.
1. Our orders are usually shipped within 24 business hours after payment received unless there are problems with the order. If this is the case we will contact you via your eBay email address or telephone number.
2. Orders are normally processed each working day not including weekends. Usually if your payment is received after 3:00 P.M. or on the weekend, it is processed on the next business day.
CONTACT DETAILS
CONON PTY LTD
Add:28 Aristoc Rd, Glen Waverley. Vic. 3150
(We are opposite of Monash Aquatic & Recreation Centre. Left entry of the building)
Mobile: 0401 634 280
Phone: (03) 8555 2518
https://www.cononmotor.com.au (online store web)
E-mail: [email protected]
[email protected]
RETURNS POLICY
1- All our products come with 1 year warranty, unless stated otherwise. Stated clearly on the tax invoice.
2- All warranty/return items must accompany by a return approval (RA) note. Please contact us via email, or telephone to obtain a return approval.
We do this to minimize errors and misunderstanding.
3- Any item returned without an RA note will not be looked at or contact and would eventually be discarded. This will cause delay to your warranty claim.
We will not be responsible for any loss incurred by the buyer sending an unmarked item to our store. The Buyer will need to bare all costs in processing the returned item.
Our store carries a large range of motors (single phase and 3 phase) and consumables to suit most residential, industrial and commercial needs. Check out both our retail and online store for more products. Wholesales is available.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 224 reviews
Sort
Product Reviews
★★★★★ 5
CODE is the book you should get.
Format: Paperback
The best book to enter the field. Grateful that Charles Petzold decided to write it, even happier this was one of the first books I picked up.
Recommend to everyone wanting to become a programmer, or just interested in computers.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
★★★★★ 5
If you only buy one technical computer book, this is it
Format: Paperback
Disclaimer: I owned the first edition for years and read it a dozen times, mainly for pleasure since it’s not only informative but also just enjoyable to read. I’m a professional software architect and have dozens of textbooks on computer science and engineering so I’ve been around the block.
This is the kind of book I would buy all for all my friends (if I had more than a couple) and family members (if they were even slightly into computers, which they aren’t sadly). Petzold does an exceptional job at describing digital logic and guides you through building a conceptual CPU from very first principles.
I think his bottom up approach is the way to go and has helped me understand complex topics in an extremely simple way. When I’m not reading fiction, this is my go to bedtime reading.
The second edition has about 100 more pages than the first and some content has been completely reworked and it’s great.
If you ever had even a passing interest in knowing how computers work at a very fundamental level, get this book!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2023
★★★★★ 4
First programmer?
Format: Paperback
As an ardent reader of the past 1st edition, I was fairly excited to get the latest version. That is, until I encountered the history chapter of the new edition.
For one thing, what I do NOT understand in this second edition is the newly added description of August Ada Byron (countless of Lovelace). The author claims it was Babbage who was the first programmer to design the engines, not Ada. I am not trying to start a futile argument here about who has more or fewer contributions, etc.
What I am trying to assert here is that it is undisputed that Ada (unless the new evidence arises) left *the very first demonstration* of what this seemingly imaginary machine, which didn't even physically exist, was capable of through her program. Because Babbage designed the engine itself, that doesn't automatically put him in the position of a programmer (despite Babbage being a brilliant engineer/scientist and may have had a simple or detailed program in his mind). However, it was Ada who gave a definite touch to programming concepts that ultimately led to modern-day programming. Ada deserves more recognition than a mere "tutorial writer," and she is certainly entitled to the title she deserves.
Other than that, like the previous edition, this book is a must-read for people who are from related/unrelated fields. I always loved the 1st edition, and I would do too with the 2nd. Still, I think history should always be approached with more care, particularly if matters have potential controversies.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 6, 2023
★★★★★ 5
One of the few books worth your time
Format: Paperback
If you want to learn computers, start here. Learning from a historical perspective removes complexity of trying to start with say GPUs - you learn just like computer engineers did, incrementally.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
★★★★★ 5
An absolutely brilliant book
Format: Paperback
This is an amazing book for the right kind of reader. It's a lot like Euclid's Elements but for computers as it leads the reader through designing a computer from first principles and builds to the point of creating software and adding peripherals. It's an amazingly clear but slightly challenging read. I have given this book as a gift many many times. It's an absolute classic in my opinion.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2025
recommand products
Black Box GigaBase CAT5e 96-Port Patch Panel- JPM910A-R4(S6LLST7524)
100.00
Lot of 5 Ferraz Shawmut Protistor S101614CF00 900A 700V Fuse(S6LLST8701)
50.00
5" Tall 5 Drawer File Cabinet(S6LLST8693)
150.00
Bogen Universal Telephone Paging Interface UTI1(103985)
50.00
4'x16x36 Jamestown Overhead Cabinet(104117)
200.00