Products Name 6903 deep groove ball bearing with high quality Model 6903 Size (d*D*B) 7*30*7mm material Gcr15.carbon steel.stainless steel Tolerance code ABEC-1, ABEC-3, ABEC-5, ABEC-7 Vibration level V4, V3, V2, V1 Radial play C0, C2, C3, C4,C5 Retainer PTFE, nylon, PEEK or (stainless)steel Feature Smooth, low noise, good quality, long life,resistance to wear, dependable performance,high precision Row Number Single row or double row Quality Standard ISO9001:2002 standard Application Auto, tractor, machine too, electric machine, water pump, agricultural machinery, textile machinery etc. Delivery Lead Time Normally 5-15days for ready goods in stock Packing Ours or according to customers requirements Payment Terms 1:100% L/C at sight 2: 30% T/T in advance .70% against copy of B/L 3.T/T 30% deposit, L/C at sight 4.western union OEM Welcome Technic drawings or samples needed