15/16, 7H/73/74, S7/S8/S9 – Stainless Series – 350 lb   

• Constructed with S304 stainless steel
• Dual ball bearing raceway
• 3/8" axle and nut
• Modular kingpin is available for any custom fastening pattern

Difference between 15/16 and 73/74, S7, 7H

• Surface treatment: #15 and S7 has electrolyzed shining surface, #73, 7H is mechanically polished and buffed to a smooth reflective surface
• Raceway: #15 and S7 does not have dust cover over the raceway; #73, 7H raceway has seal, grease fitting and dust cover
• S7 is total-lock brake simultaneously locks both the swivel and wheel
• 7H has a high-temp white silicon seal integrated with raceway, grease fitting on dust cover, mechanically polished and buffed to a smooth reflective surface. Seal temperature range is 390°F, intermittent 450°F

25—Stainless Bakery Series—700lb

• S304 stainless
• Dual raceway
• Feature high temp wheels

B1/B2, 31/32/TS, S5/S6—Stainless Steel Series—1250LB 

• #304 stainless steel
• Stainless grease fitting on raceway
• Difference between series

   Raceway

• #B1, #31 and TS have stamping formed dual raceways, with 5/8" kingbolt
• #S5 is constructed from forged stainless steel, precisely machined single raceway, double welded legs
• #5L precisely machined single raceway with grease seal, double welded legs, kingpinless

   Surface treatment

• #B1 is mechanically polished and buffed to a smooth mirror reflective surface, while the majority of other stainless yokes have an electrolyzed shining surface

4S—Stainless Modular Series—1500LB 

• ASTM1045 drop forged swivel head, 5/16" thick, 3" diameter precisely machined raceway of 1/2" diameter hardened ball bearings
• Legs are double welded 3/8" thick steel
• 3/4" axle bolt/nut
• Zinc-plated finish
• Grease fitting on raceway and axle