Revealing the framework of J A D's Class A report (but left blank as these reports are always confidential) a full report in this category will cover multiple pages and include digital images, descriptions of damage and comments on the failure mode identified in accordance with the requirements of part 35 civil procedure rules.

A single rhombic ball bearing unit (BBU) plus casting and bearing was supplied to us for inspection and report. We have no information on intended or fitted application. On removal of the outer packaging, the casting and BBU were found. A single hair line crack was seen running through the casting at a point approximately 90 degrees from the centreline of the bolt holes.

Two 6202 deep groove ball bearings retained at the ends of an electric motor shaft were supplied to us for inspection and report. We understand that the bearings have been in service for only three to four months and that there was a complaint that the long shaft bearing was notchy. On the long shaft we understand that there was a steel impeller installed and that the end user acknowledges that this impeller was out of balance during service.

Two 6219 ZZC3 shielded deep groove ball bearings and a central shaft from a damaged lift pulley were delivered to our workshop. One of the bearings was in an assembled condition; however, the other had a cracked inner raceway and two loose metal shields. All bearings were very dirty and had a coating of unidentified gummy residue. The gummy residue had a strong rubbery smell.

A single cylindrical roller bearing was supplied to us for inspection and report. From information provided, we understand that the bearing had been fitted to an electric motor and that the end user required confirmation of the failure mode.

A wheel bearing was supplied to us for inspection and report, a double row tapered roller hub unit. We understand that the bearing had been fitted to a van with a mileage of 123,095 recorded. We understand that the kit was fitted then failed two days later whilst on a motorway.

Three wind turbine Rotor Pitch Blade bearings that had been in service for approximately 10 and a half years were supplied to us for inspection and report. Rotor pitch blades are adjustable in order that the wind generator turbines can produce maximum output. The bearings that support the blades have to withstand continuous load changes resulting from these pulsating loads.

J A D Associates were asked to review a number of digital photographs taken by Arfon Rewinds to establish a possible cause for the damage that had occurred to a motor being operated by their customer, referred to in this report as "the end user".

Revealing the framework of J A D's Class A report (but left blank as these reports are always confidential) a full report in this category will cover multiple pages and include digital images, descriptions of damage and comments on the failure mode identified in accordance with the requirements of part 35 civil procedure rules.

A single rhombic ball bearing unit (BBU) plus casting and bearing was supplied to us for inspection and report. We have no information on intended or fitted application. On removal of the outer packaging, the casting and BBU were found. A single hair line crack was seen running through the casting at a point approximately 90 degrees from the centreline of the bolt holes.

Two 6202 deep groove ball bearings retained at the ends of an electric motor shaft were supplied to us for inspection and report. We understand that the bearings have been in service for only three to four months and that there was a complaint that the long shaft bearing was notchy. On the long shaft we understand that there was a steel impeller installed and that the end user acknowledges that this impeller was out of balance during service.

Two 6219 ZZC3 shielded deep groove ball bearings and a central shaft from a damaged lift pulley were delivered to our workshop. One of the bearings was in an assembled condition; however, the other had a cracked inner raceway and two loose metal shields. All bearings were very dirty and had a coating of unidentified gummy residue. The gummy residue had a strong rubbery smell.

A wheel bearing was supplied to us for inspection and report, a double row tapered roller hub unit. We understand that the bearing had been fitted to a van with a mileage of 123,095 recorded. We understand that the kit was fitted then failed two days later whilst on a motorway.

A single cylindrical roller bearing was supplied to us for inspection and report. From information provided, we understand that the bearing had been fitted to an electric motor and that the end user required confirmation of the failure mode.

Three wind turbine Rotor Pitch Blade bearings that had been in service for approximately 10 and a half years were supplied to us for inspection and report. Rotor pitch blades are adjustable in order that the wind generator turbines can produce maximum output. The bearings that support the blades have to withstand continuous load changes resulting from these pulsating loads.

J A D Associates were asked to review a number of digital photographs taken by Arfon Rewinds to establish a possible cause for the damage that had occurred to a motor being operated by their customer, referred to in this report as "the end user".