Nigel Wood, chair of the RFL, said that after his 10-year playing career at Cas, Kear had “found his passion for coaching”.
“John was also an excellent broadcast summariser with a great turn of phrase and an undiluted love and positivity for the sport,” he said.
“On behalf of the whole sport, our thoughts and condolences are with John’s wife Dawn, his family, and with those who played or worked alongside him over the last 50 years.”
Commentator Dave Woods, who worked with Kear at the BBC and became a close friend added: “He was a great rugby league man, the most passionate and eloquent of evangelists for the sport, who relished the opportunity to do that on radio and television for the BBC.
“But I’ll remember him as simply the best of blokes, humble, friendly, cheerful, always smiling, always happy to talk to anyone, especially about rugby league.”