Changzhou Tianniu Transmission Equipment Co., Ltd
| Number of Row | Double row |
| Precision Rating | P0 |
| Lubrication | Grease |
| Material | Chrome Steel |
| Outer Diameter | 30 mm |
| Width | 30 mm, 20mm |
| Bore Dia. | 12mm |
| Weight | 0.1kg |
| Type | Needle |
| Bore Diameter | 20 mm(0.79in) |
| Inner Diameter | 12mm |
| Torque capacity | 20Nm |
| Drag Torque | 0.11 |
| Freewheel speed | 1000 min-1 |
| Shaft tolerance | h6 or j6 |
| Brand Name | SUMA |
| Place of Origin | Jiangsu, China |
| Model Number | GF12 |
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Product Specification
| Number of Row | Double row | Precision Rating | P0 |
| Lubrication | Grease | Material | Chrome Steel |
| Outer Diameter | 30 mm | Width | 30 mm, 20mm |
| Bore Dia. | 12mm | Weight | 0.1kg |
| Type | Needle | Bore Diameter | 20 mm(0.79in) |
| Inner Diameter | 12mm | Torque capacity | 20Nm |
| Drag Torque | 0.11 | Freewheel speed | 1000 min-1 |
| Shaft tolerance | h6 or j6 | Brand Name | SUMA |
| Place of Origin | Jiangsu, China | Model Number | GF12 |
| High Light | GF12 Model One-Way Clutch Bearing ，12mm Bore Diameter Freewheel Roller Bearing ，20Nm Torque Capacity One Way Bearing | ||
GF12 GF 12 One-Way Clutch Freewheel Roller Bearing for
Hydraulic Cylinder
| SPECIFICATION | |||||
| Model | GF12 Clutch Bearing | ||||
| Material | GCr15 | ||||
| Type | Roller | ||||
| Inner Diameter | 12mm | ||||
| Outer Diameter | 37mm | ||||
| Weight | 0.1kg | ||||
| Torque capacity | 20Nm | ||||
| Width | 20mm | ||||
| Drag Torque | 0.11 | ||||
| Application | reducer,gearbox,other industry machine | ||||
Main Technical Specifications
Dimensions(Dimensions in mm)
| Type | dH7 | Dn6 | L | s | D1 | D2 | b | t | Weight | Inner ring freewheels/ | Outer ring freewheels/ | TKN | Drag torque |
| mm | mm | mm | mm | mm | mm | mm | mm | Kg | overruns min-1 | overruns min-1 | (Nm ) | ||
| GF 8 | 8 | 37 | 20 | 1 | 20 | 30 | 6 | 3 | 0,1 | 1000 | 1000 | 20 | 0,09 |
| GF 9 | 9 | 37 | 20 | 1 | 20 | 30 | 6 | 3 | 0,1 | 1000 | 1000 | 20 | 0,09 |
| GF 12 | 12 | 37 | 20 | 1 | 20 | 30 | 6 | 3 | 0,1 | 1000 | 1000 | 20 | 0,11 |
| GF 15 | 15 | 47 | 30 | 1 | 26 | 37 | 7 | 3,5 | 0,3 | 900 | 900 | 78 | 0,15 |
| GF 20 | 20 | 62 | 36 | 1 | 37 | 52 | 8 | 3,5 | 0,6 | 700 | 700 | 188 | 0,18 |
| GF 25 | 25 | 80 | 40 | - | 40 | 68 | 9 | 4 | 1,2 | 2100 | 3600 | 250 | 0,36 |
| GF 30 | 30 | 90 | 48 | - | 45 | 75 | 12 | 5 | 1,8 | 1700 | 3200 | 500 | 0,40 |
| GF 35 | 35 | 100 | 53 | - | 50 | 80 | 13 | 6 | 2,4 | 1500 | 3000 | 680 | 0,60 |
| GF 40 | 40 | 110 | 63 | - | 55 | 90 | 15 | 7 | 3,3 | 1200 | 2600 | 1115 | 0,84 |
| GF 45 | 45 | 120 | 63 | - | 60 | 95 | 16 | 7 | 4 | 1000 | 2400 | 1500 | 0,94 |
| GF 50 | 50 | 130 | 80 | - | 70 | 110 | 17 | 8,5 | 5,7 | 800 | 2100 | 2375 | 1,28 |
| GF 55 | 55 | 140 | 80 | - | 75 | 115 | 18 | 9 | 6,5 | 750 | 2000 | 2500 | 1,50 |
| GF 60 | 60 | 150 | 95 | - | 80 | 125 | 18 | 9 | 8,9 | 650 | 1900 | 4250 | 1,60 |
| GF 70 | 70 | 170 | 110 | - | 95 | 140 | 20 | 9 | 13,5 | 550 | 1800 | 5875 | 3,60 |
| GF 80 | 80 | 190 | 125 | - | 110 | 160 | 20 | 9 | 19 | 500 | 1600 | 10000 | 3,60 |
| GF 90 | 90 | 215 | 140 | - | 120 | 180 | 24 | 11,5 | 27,2 | 450 | 1400 | 17350 | 6,80 |
| GF 100 | 100 | 260 | 150 | - | 140 | 210 | 28 | 14,5 | 44,5 | 350 | 1300 | 19750 | 8,80 |
| GF 130 | 130 | 300 | 180 | - | 160 | 240 | 32 | 17,5 | 68 | 250 | 1000 | 35000 | 12,50 |
Features
1.The GF Series freewheels are self centering. From size 8 to size 20, centering is steel on steel, whilst from size 25 to 130, centering is ensured by 2 160 series bearings.
2.Torque forces are transmitted from the shaft to the inner race by means of a keyway and
from the outer race to the seat by means of front pullers.
3.Shaft tolerances must be either h6 or j6, seating tolerances must be H7 or G7.
4.If no front pullers are used, the seating tolerance becomes K6.
5.Before being put onto service, the freewheels must be lubricated with suitable .Oil lubrication
is essential when a high number of rotations in neutral is reached.
| Changzhou Suma Precsion Machinery Co.,Ltd |
Changzhou Suma Precision Machinery Co., Ltd is a manufacturer specialized in Producing Various cam clutch, one way bearing, one way clutch, backstop clutch, overrunning clutch and needle roller bearing with high technology
Q: How do you pack the goods?
Q: Can i get the samples from you?
A: It is highly encouraged to ask for the samples for quality check.
Q: Can you promise to deliver the goods in time?
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
8,000,000-10,000,000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
Changzhou Tianniu Transmission Equipment Co., Ltd is a professional one way clutch bearing supplier, the primary products are micro electromagnetic clutch, torque limiter coupling, sliding shaft coupling, flexible propeller shaft coupling, locking assembly and shaft couplings, etc.... Changzhou Tianniu Transmission Equipment Co., Ltd is a professional one way clutch bearing supplier, the primary products are micro electromagnetic clutch, torque limiter coupling, sliding shaft coupling, flexible propeller shaft coupling, locking assembly and shaft couplings, etc....
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