Track bolts are used to fasten rail ends together at a joint. The sizes of track bolts are varying with the requirements of the section of rail. The proper diameter and length of the track bolt can be determined by checking the applicable railway standard.
The track bolts can be classified into several types, such as, Button head oval neck track bolt, Diamond neck track bolt, Rail bolt NF F50-008, Fish bolt, Track bolt of Russian standard, Clip bolt, Clamp bolt and inserted bolt for Russia, , anchor bolt, T-bolt clamp and other special bolts, etc.
Rail bolt further information: https://www.railway-fasteners.com/rail-bolt.html
Application Criteria of Track Bolts
According to related rail standards, each joint needs to be bolted with at least two bolts in each rail tightened to approximately 400 foot-pounds of torque which develops between 25,000, and 30, 000 pounds of tension in the bolts.
Bolts in use have to be in the proper size and tightly in place.
Bolts have to be installed with AREMA spring washers whereas the nuts have to be installed against the spring washer.
Bolts have to be installed and the nuts have to installed alternately on the inside and outside of the rail.
When bolts and joint bars are moved away, the joint area of the rail and the contact surface of the joint bar have to be cleaned and the joint bar and the bolt threads have to be lubricated.
Safety standards require that on operation are permitted over rails where all bolts are missing or ineffective
Types of Rail Bolts
Button head oval neck track bolt
Diamond neck track bolt
Rail bolt NF F50-008
Clip bolt with BSW thread
Fish bolt used for rail joints (with railnuts and spring washers)
Clip bolt HS26&HS32
Clamp bolt and inserted bolt for Russia
Anchor bolt
T-bolt
Special bolt
Tunnel bolt
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Ahora me gustaría presentarle las tuercas de seguridad.
Los estándares son ASME/ANSI B18.2.2; DIN985, DIN982
Los grados son SAE J995 Gr.2, 5,8 and class 4, 5, 6, 8, 10, 12.
Este es la tuerca de seguridad zincada amarilla con nylon blanco de IFI y este es del estándar DIN con nylon azul.
La tuerca es disponible con tipos de pernos en aplicación.
Tambien podemos fabricar tuercas de seguridad especiales según sus muestras y dibujos
Shanghai Jian y Mei es un proveedor profesional de tuercas de estándar IFI y DIN, por ejemplo tuerca hexagonal pesada, tuerca hexagonal, tuerca cuadrada, tuerca flange, tuerca de bloqueo y Tuercas hexagonales de Acoplamiento etc.
Tenemos tamaños completos de M3 a M100, y 3/16” a 4”.
Los materiales pueden ser acero al carbono, acero de aleación, acero inoxidable y cobre.
Grados disponibles de tuercas son ASTM A563 grado A, grado C, grado DH, ASTM A194 Gr. 2, 2H, 7, 7M,8, 8M, SAE J995 Gr.2, 5,8; CL4, 5, 6, 8, 10, 12.
Los acabados son Zinc, Zinc amarillo, Óxido negro, galvanizado etc.
Tenemos más de ocho años de experiencia exportar Tuerca de seguridad al mercado américo y poseemos buena fama, enfíen en nosotros que somos su proveedor fiable de fijación!
No dude en contactarnos en cualquier momento!
Shanghai Jian & Mei Industry and Trade Co., Ltd
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