Crank Arms Difficult to Spin

I installed some Sugino RD2 Crank arms on a IRD QB-55 68x103mm (JIS Taper) on my surly steamroller and when I try to torque the drive-side crankarm (35 nm / 26 ft-lb) there is a point where the cranks stop spinning freely. I'm not sure if the crank arm is bottoming out on the spindle, but when I installed the drive-side my cranks just wouldnt spin freely. When I pulled off the crankarm everything was fine and there was no visible damage to the crankarm. What could be the problem here? The cranks and bb should be compatible (both jis taper) and the rd2 arms call for a 103mm bottom bracket. Thanks for your input!