WR78XHD/WH78XHD Welded Steel Chain A-Plate Sprockets
WH78XHD-A Sprocket
This sprocket will work with both WR78XHD welded steel chain and WH78XHD welded steel chain. We can supply this sprocket manufactured out of mild steel or QT400 hardened steel and either solid construction, split to bolt, split for welding construction per request. Also we can supply this sprocket machined or precision hobbed for high-speed applications. Additionally, we can supply this sprocket as a brass, nylon or UHMW idler complete with grease grooves and grease fittings.

- Will Work With WR78XHD Chain & WH78XHD Chain
- Premium Quality Chain Sprocket
- Wide Range Of Options Available
- Best Pricing From USA Roller Chain & Sprockets
| SprocketNumber | Number Of Teeth | Pitch | Pitch Diameter | Style | Shroud Diameter | BarrelDiameter | Tooth Face |
Maximum Bore | Weight |
|---|---|---|---|---|---|---|---|---|---|
| WH78XHD-A7 | 7 | 2.609" | 6.01" | A-Plate | 4.150" | 0.875" | 1.000" | 2.1875" | 7.50 LBS |
| WH78XHD-A8 | 8 | 2.609" | 6.82" | A-Plate | 5.040” | 0.875" | 1.000" | 2.4375" | 9.00 LBS |
| WH78XHD-A9 | 9 | 2.609" | 7.630" | A-Plate | 5.920" | 0.875" | 1.000" | 2.6875" | 11.00 LBS |
| WH78XHD-A10 | 10 | 2.609" | 8.44" | A-Plate | 6.776" | 0.875" | 1.000" | 2.9375" | 14.00 LBS |
| WH78XHD-A11 | 11 | 2.609" | 9.260" | A-Plate | 7.640" | 0.875" | 1.000" | 3.4375" | 17.00 LBS |
| WH78XHD-A12 | 12 | 2.609" | 10.080" | A-Plate | 8.500" | 0.875" | 1.000" | 3.4375" | 20.00 LBS |
| WH78XHD-A13 | 13 | 2.609" | 10.900" | A-Plate | 9.35" | 0.875" | 1.000" | 3.9375" | 23.00 LBS |
| WH78XHD-A14 | 14 | 2.609" | 11.720" | A-Plate | 10.180" | 0.875" | 1.000" | 4.9375" | 27.00 LBS |
| WH78XHD-A15 | 15 | 2.609" | 12.550" | A-Plate | 11.030" | 0.875" | 1.000" | 4.9375" | 31.00 LBS |
| WH78XHD-A16 | 16 | 2.609" | 13.370" | A-Plate | 11.860" | 0.875" | 1.000" | 4.9375" | 35.00 LBS |
| WH78XHD-A17 | 17 | 2.609" | 14.200" | A-Plate | 12.710" | 0.875" | 1.000" | 4.9375" | 38.00 LBS |
| WH78XHD-A18 | 18 | 2.609" | 15.020" | A-Plate | 13.550" | 0.875" | 1.000" | 4.9375" | 41.00 LBS |
| WH78XHD-A19 | 19 | 2.609" | 15.850" | A-Plate | 14.380" | 0.875" | 1.000" | 4.9375" | 44.00 LBS |
| WH78XHD-A20 | 20 | 2.609" | 16.680" | A-Plate | 15.210" | 15.210" | 1.000" | 5.9375" | 47.00 LBS |
We aslo offer a full range of both precisionroller chainand engineered.
Applications are varied and range from conveyor, elevator transfer to broad general industrial power transmission specialty applications with attachments and/or special materials are also available.
Product Quick Detail:
- Standard and non-standard available
- With high quality and competitive price
- Prompt delivery
- Packing as per customer’s demand.
We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.
Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.

Materials Available
1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
Surface Treatment
Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.
Processing Method
CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
QC & Certificate
Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009
Package & Lead Time
Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port








