Lbs Torque

Lbs Torque

Proper Selection of Torque Wrenches for Coaxial Connectors

Some coaxial connectors require torque wrenches, some do not, & some have different torque requirements depending upon the material of the connector. This article will try to address this sometimes confusing issue.

It's always best to look up the manufacturer's specifications as to the proper torque for a connector. However one often is hooking up equipment without knowing connector source, so some general guidelines can be applied.

N's and TNC's work properly with finger tightening. However there are precision N's and TNC's which work to 18ghz, & it's best to torque these to 13 inlbs. Note that there is no standard hex nut size for type N's, be sure to get one that fits.

7mm connectors, commonly used in test equipment, should have a torque of 12 in-lbs. 2.4, 2.92, & 3.5mm connectors should be tightened to 9 in-lbs.

SMA's are the most challenging connectors to torque properly. Brass SMA manufacturers call out values of 3-6 in-lbs. Stainless steel sma specs vary between 7.5-10 in-lbs. Use a 10 in-lb wrench on a brass SMA and the nut will come off! Some Military specs forbid tightening over 8 in-lbs. Agilient, one of the most respected manufacturers in our industry, uses lower levels than most, recommending 5 in-lbs for SMA's. Huber Suhner, another well know manufacturer, sells tools with a torque of up to 9.6 in-lbs for their sma's. May the buyer beware!

SMC connectors come with up to 4 head sizes, so one might consider a single wrench with multiple heads. 3 in-lbs is the nominal value for smc's.

Typical torque wrenches can be found here; sma torque wrenches and 7mm torque wrenches

Bob Hawkins Fairview Microwave

 

About the Author

Bob Hawkins

Fairview Microwave

www.fairviewmicrowave.com

Porter-Cable PT382 3/8-in Impact Wrench (125 ft-lbs. torque) $59.99 3/8-in Impact Wrench (125 ft-lbs. torque) - PT382. Operating Manual

Torque $12.49 Torque

Torque Backpack $59.95 Ogio Torque Backpack High volume multi-use main compartment Posh valuables pocket for digital accessories Top entry padded laptop compartment with anti-scratch fleece lining Secondary exterior compartment with deluxe organization panel Multi-use compression carry straps Two large exterior side pockets (one with convertible beverage holster) Ergonomic adjustable shoulder straps with superior comfort padding Deluxe padded back panel and adjustable sternum strap 600D Poly PU2 / 420D Dobby Poly PU2 / 400D Nylon PU2 Dimensions: 7" H x 13" W x 19" D Weight: 2.1 Lbs.

K Tool International 1/2" Drive Torque Wrench 10 150 ft/lbs. Each $52.4 Manufacturer: K Tool International. Each. 10-150 Ft/lbs. Clicks when torque is achieved. Packaged in plastic molded case. Customers also search for: Discount 1/2" Drive Torque Wrench 10 150 ft/lbs, Buy 1/2" Drive Torque Wrench 10 150 ft/lbs, Wholesale 1/2

Central Tools Torque Multiplier Max Output 1000 ft/lbs.. Each $337.07 Manufacturer: Central Tools. Each. Features Benefits: Increases the range of your torque wrench as much as 14 to 1 Designed with four pinion gears in a compact housing Frictional losses in the gear train may cause a torque loss of 10% to 20% Ratio: 4:1

Central Tools Torque Multiplier Max Output 2000 ft/lbs.. Each $506.45 Manufacturer: Central Tools. Each. Features Benefits: Increases the range of your torque wrench as much as 14 to 1 Designed with four pinion gears in a compact housing Frictional losses in the gear train may cause a torque loss of 10% to 20% Reaction b

Central Tools CEN6387 Torque Multiplier Max Output 2000 ft/lbs. $713.41 Features and Benefits: Increases the range of your torque wrench as much as 14 to 1 Designed with four pinion gears in a compact housing Frictional losses in the gear train may cause a torque loss of 10 percent to 20 percent Reaction bar length: 18 This multiplier increases the range of your torque wrench as much as 14 to 1. Designed with four pinion gears in a compact housing it is built durable for professional use.

Ogio Quasar Torque Backpack $59.95 . Ogio Quasar 'Torque' Backpack Specs: Dimensions: 18' H x 11.75' W x 7.5' D Weight: 2.1 Lbs. Capacity: 1700 Cubic Inches

Ogio Mig Torque Backpack $59.95 . Ogio Mig 'Torque' Backpack Specs: Dimensions: 18' H x 11.75' W x 7.5' D Weight: 2.1 Lbs. Capacity: 1700 Cubic Inches

3/8 Drive Inch Lb. Torque Wrench by Wilmar Tools $55.99 Precision Prolock Torque Wrench.25-250 in. lbs. 3/8 in. drive

Adjustable Torque Wrench Adapter $42.99 Motion Pro Adjustable Torque Wrench Adapter Torque any fastener with a combination wrench or Allen wrench Will work with 6mm (1/4 in) through 19mm (3/4 in) combination wrenches Will work with 6mm and 8mm Allen wrenches Heat-treated steel with a black oxide finish 3/8" square drive is rated for a maximum torque of 90 ft-lbs Wrenches not included

Micrometer Adjustable Torque Wrench $54.99 Bikemaster Micrometer Adjustable Torque Wrench Micrometer-type sleeve allows accurate pre-set torque values to be set Reversible ratchet head Available with 3/8” or 1/2” Sq. Dr 3/8" Sq. Dr Marked range (5-80 ft lbs) 1/2" Sq. Dr Marked range (10-150 ft lbs)

6062C - 1/4 inch Torque Wrench 40-200 In Lbs $186.91 [577-6062C] Truck Delivery UPC: 662679136055

6065C - 3/8 inch Drive Torque Wrench100-1000 In/Lbs $202.99 [577-6065C] Truck Delivery UPC: 662679136086

6066C - 3/8 Drive Torque Wrench100-1000 In Lbs $208.84 [577-6066C] Truck Delivery UPC: 662679136093

6068C - 1/2 inch Drive Torque Wrench300-1800 In Lbs $227.71 [577-6068C] Truck Delivery UPC: 662679136109

3/4'' Dr. Micrometer Torque Wrench - 100 To 600 Ft.-Lbs. $518.95 ? Torque range: 100 to 600 ft.-lbs in 2.5lb increments; (153 to 830 Nm in 3.4 Nm increments) ? Reversible for torquing left or right threaded fasteners ? Accurate in clockwise direction to +/- 4% in upper 80% of range ? Micrometer lock-ring maintains setting during operation ? Rubber dust seal keeps dirt out of inner mechanism ? 45 tooth ratchet design yeilds 8 degree arc for work in tight spaces ? Chrome finish for long lasting corrosion resistance ? Length: 41.25'' ? Includes storage boxBy K-D Tools.

KD Tools 1/2" Drive Electronic Torque Wrench 25-250 ft lbs. Each $271.07 Manufacturer: KD Tools. Each. Features Benefits Three torque wrenches in one (25-250 ft lbs, 300-3000 in lbs, 33.9-339 Nm) provides superior versatility No need for mechanical recalibration which provides savings to the user Measures the maximum torque

Armstrong Tools Torque Wrench 3/8" Drive 100-1000 In/lbs. Each $210.58 Manufacturer: Armstrong Tools. Each. Compact, strong, and hard wearing tear-drop ratchet head Scale stamped on spring tube Detent-style locking collar O-ring seal between ratchet head and spring tube Emits audible click when torque setting is reached Elim

Chicago Pneumatic 1" Compact 2000 Impact Wrench ft/lbs Torque. Each $2681.03 Manufacturer: Chicago Pneumatic. Each. Features Benefits: Compact housing design excellent in confined spaces 5 spline drive available for more torque output on the toughest of jobs Ultimate torque: 2000 ft.-lbs. Applications: Front end loaders, buses,

KD Tools KDT85073 .38in. Drive Electronic Torque Wrench with Angle 10 100 ft. lbs $377.33 GearWrench electronic torque wrenches with angle eliminate the need for special angle gauges and protractors. It s ideal for torquing where access is limited. Knurled aluminum grip resists slipping. Provides the most accurate and fastest way to measure torque plus angle tightening sequences. Torque wrench will accumulate angle measurement when multiple turns must be used. Low profile performance head that flexes 15 degrees in both directions. Measures torque in inch/lbs ft/lbs and Nm. Backlight feature for better visibility in low light conditions. Dimension: 4 W x 21.5 L x 3 H.

Ogio Grangler Torque Backpack $59.95 . Ogio Grangler 'Torque' Backpack Our motorsports products are designed by riders for riders. OGIO has set the standard in high performance products that meet the demands of today's top athletes. Materials: 600D Poly PU2 / 420D Dobby Poly PU2 / 400D Nylon PU2 Specs: Dimensions: 7in. H x 13in. W x 19in. D Weight: 2.1 Lbs.

Ogio Stealth Torque Backpack $59.95 . Ogio Stealth 'Torque' Backpack Our motorsports products are designed by riders for riders. OGIO has set the standard in high performance products that meet the demands of today's top athletes. Materials: 600D Poly PU2 / 420D Dobby Poly PU2 / 400D Nylon PU2 Specs: Dimensions: 7in. H x 13in. W x 19in. D Weight: 2.1 Lbs.

1/2 Drive Inch Lb. Torque Wrench by Wilmar Tools $78.99 Precision Prolock Torque Wrench.30-250 foot lbs. 1/2 in. drive

Mountain 1/2" Drive 10 150 ft/lbs. Torque Wrench. Each $38.92 Manufacturer: Mountain. Each. Features Benefits: Ratcheting click style 18 in. long Blow molded case Superceded: KTI72101 Discontinued: CIA9150 Customers also search for: Discount 1/2" Drive 10 150 ft/lbs. Torque Wrench, Buy 1/2" Drive 10 150 ft/lbs.

Mountain 3/8" Drive 20 200" /lbs. Torque Wrench. Each $40.06 Manufacturer: Mountain. Each. Features Benefits: Ratcheting click style 10 in. long Blow molded case Superceded: KTI72100 Discontinued: CIA9200 Customers also search for: Discount 3/8" Drive 20 200" /lbs. Torque Wrench, Buy 3/8" Drive 20 200" /lbs. To

Mountain 1/2" Drive 25 250 ft/lbs. Torque Wrench. Each $59.51 Manufacturer: Mountain. Each. Features Benefits: Ratcheting click style 25 in. long Blow molded case Superceded: KTI72102 Discontinued: CIA9250 Customers also search for: Discount 1/2" Drive 25 250 ft/lbs. Torque Wrench, Buy 1/2" Drive 25 250 ft/lbs.

Mountain 3/4" Drive 100 600 ft/lbs. Torque Wrench. Each $320.93 Manufacturer: Mountain. Each. Features Benefits: Ratcheting click style 42 in. long Blow molded case Superceded: KTI72175 Discontinued: CIA9600 Customers also search for: Discount 3/4" Drive 100 600 ft/lbs. Torque Wrench, Buy 3/4" Drive 100 600 ft/lbs

Leupold Mark 4 Base Torque Wrench - 48701 $137.8 This Leupold Mark 4 Base Torque Wrench is designed to deliver the proper torque value (65-in. Lbs. ) when installing Mark 4-style rings for return-to-zero accuracy.

1/4? Gearwrench Micrometer Torque Wrenches $119.95 ? Sealed tear drop design keeps out contaminants for superior performance and life and provides better access over round head designs. ? +/- 3% accuracy. ? Locking collar allows easy setting of desired torque and prevents accidental change of torque setting while in use. ? One finger operated reversing lever. ? Pliable elastometer handle grip for comfort and oil resistance. ? Includes blow molded storage case. ? 30-200 in.-lbs., 10? Length.By K-D Tools.

3/8? Gearwrench Micrometer Torque Wrench $119.95 ? Sealed tear drop design keeps out contaminants for superior performance and life and provides better access over round head designs. ? +/- 3% accuracy. ? Locking collar allows easy setting of desired torque and prevents accidental change of torque setting while in use. ? One finger operated reversing lever. ? Pliable elastometer handle grip for comfort and oil resistance. ? Includes blow molded storage case. ? 25-250 in.-lbs., 13.8? Length.By K-D Tools.

1/2? Gearwrench Micrometer Torque Wrench $119.95 ? Sealed tear drop design keeps out contaminants for superior performance and life and provides better access over round head designs. ? +/- 3% accuracy. ? Locking collar allows easy setting of desired torque and prevents accidental change of torque setting while in use. ? One finger operated reversing lever. ? Pliable elastometer handle grip for comfort and oil resistance. ? Includes blow molded storage case. ? 10-150 ft.-lbs., 21.2? Length.By K-D Tools.