A wheel hub bolt assembly , also referred to as , wheel hub bolt, wheel hub bearing, etc., is an automotive part used in most cars, passenger vehicles, and light and heavy trucks.The wheel bolt which is bolted on the wheel hub assembly. This assembly is located between the brake drums or discs and the drive axle. Depending on the design and application, the end of hub may or may not have splined teeth. They fit in with the corresponding splines on the axle shaft. These axle hub spins along with the wheels bolted to it and provide the power to the wheels in order to rotate.To make the rotation of the non-drive wheels a roller bearing is between the axle hub and axle shaft. On the axle side, it is mounted to the holding bracket from the chassis on the disc side, the wheel is mounted to the bolts of the WHA.
Roll-fast is the biggest manufacturer for larger diameter Hub Bolts & nuts in India, we have a monthly production of over 300 tons in bigger sizes from M-16 to M-80 in 8.8, 10.9 & 12.9 grade. We are the pioneers in manufacturing critical fasteners for the Automitive sector in India. These Fasteners are manufactured only by hot forging process and we have the complete list of machines in our factory to manufacture these bolts & nuts.
Bolt Grades
We offer Hub Bolts in 8.8, 10.9 & 12.9 grade, the choice of the grade depends upon the application and requirement of the customer. The grades 8.8, 10.9 & 12.9 have separate mechanical characteristics which are defined in the ISO 898-1.
- ISO 898-1 - 4.8, 6.8, 8.8, 10.9, 12.9.
- ASTM A320 - B7, B7M, B8, B8T, B8M Class 1, B8M Class 2, B16, SS316S31.
- ASTM A307 / A563
Dimension
- As per Customer requirements.
Bolts characteristics
- Optimum durability
- High tensile strength
- Corrosion resistance
- Wear and tear proof
Finish
HDG, Zinc Plated, Zinc Flake, Black Oxide, Xylan, PTFE, Geomat, Chrome finish
We can offer surface finishing as per customer requirement in hot dip galvanizing, we take special care to ensure there is no hydrogen embrittlement in 10.9 grade with our special curing system which ensures that 10.9 grade bolts are not damaged by hydrogen embrittlement post galvanizing process. We also do zinc electroplated in blue, yellow, or black color as per customer requirements.
