Swivel

A swivel is a connection that allows the connected object, such as a gun, chair or swivel caster to rotate horizontally or vertically.

For other uses, see Swivel (disambiguation).
A swivel in a chain link
Stainless steel anchor swivel
A swivel in a link

Swivel designs

A common design for a swivel is a cylindrical rod that can turn freely within a support structure. The rod is usually prevented from slipping out by a nut, washer or thickening of the rod. The device can be attached to the ends of the rod or the center. Another common design is a sphere that is able to rotate within a support structure. The device is attached to the sphere. A third design is a hollow cylindrical rod that has a rod that is slightly smaller than its inside diameter inside of it. They are prevented from coming apart by flanges. The device may be attached to either end.

A swivel joint for a pipe is often a threaded connection in between which at least one of the pipes is curved, often at an angle of 45 or 90 degrees. The connection is tightened enough to be water- or air-tight and then tightened further so that it is in the correct position.

Large yachts often have a swivel in the anchor chain. Anchor swivels should not be connected to the anchor itself, but should be somewhere in the chain rode. Most modern stainless steel swivels will pass easily through hawseholes and over windlass gypsies.

gollark: My slightly newer SomethingOrOther 5000 does too.
gollark: ```Architecture: x86_64CPU op-mode(s): 32-bit, 64-bitByte Order: Little EndianCPU(s): 4On-line CPU(s) list: 0-3Thread(s) per core: 1Core(s) per socket: 4Socket(s): 1NUMA node(s): 1Vendor ID: AuthenticAMDCPU family: 23Model: 1Model name: AMD Ryzen 3 1200 Quad-Core ProcessorStepping: 1CPU MHz: 3338.023CPU max MHz: 3500.0000CPU min MHz: 1550.0000BogoMIPS: 6989.03Virtualization: AMD-VL1d cache: 32KL1i cache: 64KL2 cache: 512KL3 cache: 4096KNUMA node0 CPU(s): 0-3Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb hw_pstate sme ssbd sev vmmcall fsgsbase bmi1 avx2 smep bmi2 rdseed adx smap clflushopt sha_ni xsaveopt xsavec xgetbv1 xsaves clzero irperf xsaveerptr arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif overflow_recov succor smca```What clear, useful output.
gollark: `lscpu` on Li'nux.
gollark: How do you know?
gollark: https://www.dell.com/downloads/global/products/pedge/en/2950_specs.pdf

See also
  • The dictionary definition of swivel at Wiktionary
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