As a defenceman, he played 216 games for the Sweden men's national team and participated in nine Ice Hockey World Championships and three Winter Olympics.

[3] He played only one game in the 1960 Winter Olympics after breaking his rib cage in a collision with Canadian player Floyd Martin.

[4] Björn retired from the Sweden national team and Djurgårdens IF after the 1965–66 season to spend more time with his family, following a dispute with Swedish Ice Hockey Association chairman Helge Berglund.

[4] Björn was the maternal grandfather of retired player Douglas Murray, who played defense in the National Hockey League and one season with Djurgårdens IF.

[3][11] Individual statistics from the top level of international play at the Olympic Games and the Ice Hockey World Championships (IHWC):[1]