Roller chain coupling Stainless steel series (Wrapped type coupling )
- Uses austenitic stainless steel for the roller chain and sprocket.
- For use in harsh environments where previous steel roller chain couplings could not be used.
- ・Applicable shaft diameter :Φ11mm~Φ140mm
- ・Torque range :74~5883N・m
Features
-
・Excellent corrosion resistance
Ideal for use outdoors or in acidic, alkaline, or other corrosive environments.
[Main purpose(s) ]:Water gates, food processing machinery (brewed/fermented foods), marine rigging equipment
-
・Operating Temperature Range
Without case :-20~200℃/With case :-10~80℃
※Contact a Tsubaki representative regarding using the Stainless Steel Series with case over 80℃.
-
・Clean quality
This high anti-rust performance coupling has excellent compatibility with fluorine grease for clean room.
-
・Quick delivery
CR4012~CR6022:2 weeks for plain bore and 3 weeks for shaft bore machining products.
CR8018~CR12022:Large size products in a short delivery time, with both plain bore products and shaft bore machining products in 4 weeks.
List of Chemical Resistance
Chemical/Food Name | Resistance | Chemical/Food Name | Resistance | Chemical/Food Name | Resistance |
---|---|---|---|---|---|
Acetone | ● | Hydrogen peroxide 30% | ● | Vinegar | ▲ |
Alcohol | ● | Formic acid 50% | ● | Potassium hydroxide 20% | ● |
Ammonia solution | ● | Chromic acid 5% | ● | Sodium hydroxide 25% | ● |
Zinc chloride 50% | ▲ | Acetic acid 10% | ● | Concentrated nitric 65% | ● |
Ferric chloride 5% | ▲ | Calcium hypochlorite | ● | Boric acid 50% | ● |
Sodium chloride 5% | ● | Sodium hypochlorite 10% | × | Sulfuric acid 5% | × |
Hydrochloric acid 2% | × | Oxalic acid 10% | ● | Zinc sulfate 25% | ● |
Seawater | ▲ | Nitric acid 5% | ● | Phosphoric acid 5% | ● |
-
● :Corrosion resistant ▲:Corrosion resistant in certain applications ×:Not corrosion resistant
Corrosion resistance will change considerably depending on the operating conditions. The above are not guaranteed values.
Refer to the above table and confirm the amount and type of corrosion in your actual operating conditions before choosing your specifications.
Construction
-
・The main unit is composed of an austenitic stainless steel sprocket and special double strand stainless steel roller chain.
・Comes with special stainless steel connecting links and clips.
Housing (Selling seperately )
Please mount a casing in the following cases,
- (1) Used at high rotating speeds.
- (2) Used under abrasive conditions, such as dusty areas.
- (3) Used in corrosive environments, such as moist areas.
- ・Special case for Stainless Steel Series roller chain couplings.
- ・When mounting the casing, the chain coupling life is extended due to the prevention of lubricant splash and dust infiltration.
- ・For ease of mounting and inspection, the casing can be split at a right angle to the shaft.
Casing Structure
- ・The case is a two piece split type aluminum die-cast case with a gasket (cork with synthetic rubber) along the mating surface.
- ・It comes with four hexagonal bolts and a special (NBR) oil seal.
- ・The oil seal and gasket are also available for individual purchase. You will need to purchase the lubricating grease separately.
Click here for a list of recommended greases.
- ・Install the oil seal on the side subject to greater vibration.
- ・When used vertically, the oil seal side should be the top side.
If grease leakage countermeasures are to be taken, please contact us for a quotation. - ・Paint specifications :Baked melamine resin coating
- ・Paint Color :Munsell 8.1YR7.6/15.2 orange yellow
Catalogs ・Instruction Manuals
Model No. examples
CR | 40 | 12 | H | - | SS |
| Series |
| Chain No. |
| Sprocket Teeth |
| H:Main unit K:Housing |
| SS:Stainless steel series |
List of Model Numbers
※Click the model No. for detailed information.